Operator Manual Transfer Switch 40-1000 Amperes OTECA (Spec A) OTECB (Spec A) OTECC (Spec A) OTECD (Spec A) English Original Instructions 11-2017 0962-0131 (Issue 6)
Table of Contents 1. SAFETY PRECAUTIONS .............................................................................................................. 1.1 Electrical Shock and Arc Flash Can Cause Severe Personal Injury or Death ....................... 1.2 General Precautions ............................................................................................................... 1 1 1 2. INTRODUCTION.....................................................................................................
Table of Contents 11-2017 4.3.1 Test With or Without Load ......................................................................................... 4.3.2 Test With Load - Sequence of Events ....................................................................... 4.3.3 Test Without Load - Sequence of Events .................................................................. Sensors.................................................................................................................................
11-2017 Table of Contents 5.2.2 Time Delay Engine Start (TDES) ............................................................................... 5.2.3 Time Delay Normal to Emergency (TDNE)................................................................ 5.2.4 Time Delay Emergency to Normal (TDEN)................................................................ 5.2.5 Time Delay Engine Cool-Down (TDEC)..................................................................... 5.2.
Table of Contents 11-2017 This page is intentionally blank. Copyright © 2017 Cummins Inc.
1 Safety Precautions This manual includes the following symbols to indicate potentially dangerous conditions. Read the manual carefully and know when these conditions exist. Then, take the necessary steps to protect personnel and the equipment. DANGER This symbol warns of immediate hazards that will result in severe personal injury or death. WARNING This symbol refers to a hazard or unsafe practice that can result in severe personal injury or death.
1. Safety Precautions 11-2017 • Do not smoke near the batteries. • Do not work on this equipment when mentally or physically fatigued, or after consuming alcohol or any drug that makes the operation of equipment unsafe. WARNING Incorrect service or replacement of parts can result in death, severe personal injury, and/or equipment damage. Service personnel must be qualified to perform electrical and/or mechanical service. Copyright © 2017 Cummins Inc.
2 Introduction 2.1 Operator Manual This manual covers models produced under the Cummins® and Cummins Inc. brand names. The information contained within the manual is based on information available at the time of going to print. In line with Cummins Inc. policy of continuous development and improvement, information may change at any time without notice. The users should therefore make sure that before commencing any work, they have the latest information available.
2. Introduction 11-2017 FIGURE 1. CONTROL NAMEPLATE 2.4 Transfer Switch Application Transfer switches are an essential part of a building's standby or emergency power system. The utility line (normal power), is backed up by a generator set (emergency power). The transfer switch automatically switches the electrical load from one source to the other. If utility power is interrupted, the load is transferred to the generator set (genset).
-2017 2. Introduction 2.5 Specifications 2.5.1 Model OTEC Transfer Switch Model OTEC Specifications: Model OTECA OTECB OTECC OTECD 2.6 Amps Cabinet Types 40 70 125 All Amps: 1, 3R, 4, 4x, 12 150 225 260 Util-to-Gen Gen-to-Gen Util-to-Gen & Utilto-Util Transfer Modes X OT PT All Amps: 1.
2. Introduction 11-2017 5. Retransfers the load to Source 1. 6. Sends a stop signal to the generator set. Copyright © 2017 Cummins Inc.
3 Description 3.1 Cabinet Cabinets are available in various configurations that meet UL and National Electrical Manufacturer's Association (NEMA) requirements. Each cabinet includes an identification label. The standard cabinet offerings are: • Type 1 Indoor - general purpose • Type 3R Outdoor - rainproof • Type 4 Outdoor - watertight • Type 4X Outdoor - watertight, stainless steel • Type 12 Indoor - dust tight 3.
3. Description 11-2017 FIGURE 2. AUXILIARY CONTACTS 3.3 Available Transfer Modes • Open Transition (OT) with Sync Check • Programmed Transition (PT) 3.3.1 Open Transition with Sync Check Open transition with sync check executes an open transition (OT) transfer when both sources of power are within specified tolerances of frequency, voltage and relative phase difference. If both sources meet the tolerances, a fast transfer occurs. 3.3.1.
11-2017 3. Description 3.3.1.3 Sync Check Sensor Sync Check is used to determine when both sources of power are within specified tolerances of frequency, voltage, and relative phase difference. If both sources are within this range, a fast or synchronized transfer occurs. Default Value: • Frequency bandwidth: 1.0 Hz • Voltage: 10 V • Offset: 0 milliseconds Range: • The frequency bandwidth range is from 0.1 and 1.0 Hz.
3. Description 11-2017 2. If there is a programmed transition delay, the transfer switch stops in the Neutral position for the Time Delay Programmed Transition (TDPT) and then completes its transition to the Source 1 position. The Source 1 Connected indicator lights and the Time Delay Engine Cooldown (TDEC) timer starts. 3. When the engine cool-down delay expires, the genset shuts down and the Source 2 Available indicator goes out. 3.
11-2017 3. Description FIGURE 3. FRONT PANEL TEST SEQUENCE OF OPERATION 3.4.1.1 Remote Test Input The transfer switch may be wired for a remote test input. The switch is used to start and stop manually initiated system tests. As with the control panel Test pushbutton, the remote test input can be configured to test with or without load. A remote test input is set up by connecting a dry (voltage free) contact between TB2-5 and TB2-8.
3. Description No. 11-2017 Description No. Description 1 GND 5 Remote test 2 2 6 Transfer inhibit 3 B+ 7 Retransfer Inhibit 4 RMT 8 Common FIGURE 4. TB2 CONNECTIONS FOR REMOTE TEST TRANSFER NOTICE TB1 and TB2 will accept 22 AWG - 12 AWG wire with 3/8 inch (10 mm) strip. Torque to 9 in-lbs. 3.4.1.2 Transfer Inhibit A transfer inhibit input is set up by connecting a dry (voltage free) contact between TB2-6 and TB2-8.
11-2017 3. Description No. Description No. Description 1 GND 5 Remote test 2 2 6 Transfer inhibit 3 B+ 7 Retransfer inhibit 4 RMT 8 Common FIGURE 5. TB2 CONNECTIONS FOR TRANSFER INHIBIT This feature is used to control load transfer to generator sets. When enabled, load transfer will not take place unless the Override pushbutton on the control panel is pressed or the transfer inhibit input is disabled.
3. Description No. 11-2017 Description No. Description 1 GND 5 Remote test 2 2 6 Transfer inhibit 3 B+ 7 Retransfer inhibit 4 RMT 8 Common FIGURE 6. TB2 CONNECTIONS FOR RETRANSFER INHIBIT 3.5 Options 3.5.1 Battery Charger Options Two battery chargers are available. One battery charger is rated for 2 amperes at 12 or 24 VDC. The other battery charger is rated for 15 amperes at 12 VDC or 12 amperes at 24 VDC.
11-2017 3. Description No. Description No. Description 1 120, 208 and 240 VAC battery chargers 7 AC input breaker 2 Status LED 8 227, 380, 416, 480 and 600 VAC battery chargers 3 Control panel 9 20-Amp DC output circuit breaker switch (shown in ON position) 4 DC output breaker 10 AC input fuse holders 5 Circuit breaker guard 11 Optional battery temperature sensor connector 6 Fault alarm output connector FIGURE 7. 15/12-AMP POWERCOMMAND BATTERY CHARGERS 3.5.1.1.
3. Description 11-2017 • The status LED is displays the appropriate color for the following conditions. ◦ Green - On solid indicates unit is charging ◦ Amber - On solid indicates Equalizing ◦ Red - On solid indicates a fault condition. The fault number is shown on the digital display. FIGURE 8. 15/12-AMP CHARGER CONTROL PANEL 3.5.1.1.2 Battery Charger Configuration The RESET button on the control panel is used to configure the battery charger.
11-2017 3. Description FIGURE 9. 2-AMP POWERCOMMAND BATTERY CHARGER 3.5.1.2.1 2-Amp Control Panel The 2-amp battery charger control panel includes a digital display, a RESET button and an LED status indicator. • The 2-line x 16-character digital display displays menus and faults. • The RESET button is used to select menu options and to clear fault messages. • The status LED displays the appropriate color for the following conditions.
3. Description 11-2017 No. Description 1 Reset button 2 Digital display No. 3 FIGURE 10. Description LED status indicator 2-AMP BATTERY CHARGER CONTROL PANEL 3.5.1.2.2 2-Amp Battery Charger Configuration The RESET button on the control panel is used to configure the battery charger for the correct battery voltage. (More information on Setup menus is included in the Battery Charger Operator Manual.) 3.5.
11-2017 3. Description No. Description No. Description 1 GND 5 Remote Test 2 2 6 Transfer Inhibit 3 B+ 7 Retransfer Inhibit 4 RMT 8 Common FIGURE 11. CONNECTIONS FOR REMOTE OVERRIDE INPUT NOTICE TB1 and TB2 will accept 22 AWG - 12 AWG wire with 3/8 inch strip (10 mm). Torque to 9 in-lbs. 3.6 EC Control Panel The EC control panel is located on the cabinet door. The control features are divided into three groups: • Control Function LEDs • ATS Status LEDs • Membrane Pushbuttons 3.6.
3. Description No. 11-2017 Description No. Description 1 Active Test LED 7 Set Exercise pushbutton 2 Function indicator LEDs 8 Active Exercise LED 3 Utility Power Available LED 9 Generator Set Power Connected LED 4 Test pushbutton 10 Generator Set Power Available LED 5 Utility Power Connected LED 11 Value indicator LEDs 6 Override pushbutton FIGURE 12. 3.6.
11-2017 3. Description This LED flashes once per second if there is a failure to connect to or disconnect from the genset, when commanded. The control makes five attempts (there is ten seconds between each attempt) to connect to or disconnect from the genset before it flashes the failure. Test: This amber LED is lit when there is an active test period. This LED flashes twice per second when the Test pushbutton is pressed to set or cancel a test period.
3. Description 11-2017 This page is intentionally blank. Copyright © 2017 Cummins Inc.
4 Operation 4.1 Transfer Switch Configuration The transfer switch is preset at the factory to operate using default settings. The control will operate the transfer switch when power is applied. However, you may wish to adjust some of the settings for your application. The transfer switch must be installed correctly, with DC power present, before any adjustments to the configuration can be made.
4. Operation 11-2017 Function Factory Setting Exercise Repeat Interval 4.2 Every 7 Days Manual Operation The transfer switch has operator handles for manually transferring the load. Manual operation must be performed by qualified personnel under No-Load Conditions only. 4.2.1 Manual Operation of Transfer Switches WARNING Manual operation of the transfer switch under load presents a shock hazard that can cause severe personal injury or death.
11-2017 4. Operation WARNING Automatic transfer switch operation results in rapid movement of the manual operator handles and presents a hazard of severe personal injury. Keep hands clear of handles when switching back to automatic operation. 8. To return to automatic operation, restore power to the control by reconnecting the J1 connector. 9. Move the circuit breaker handle to the ON position.
4. Operation 11-2017 The Set Exercise button is used to: • Set a delayed repeat exercise period when the pushbutton is pressed and held for five seconds. • Start an immediate exercise period (that also repeats) if the pushbutton is pressed momentarily within ten seconds of starting the delayed exercise period. • Cancel a repeatable exercise period if the pushbutton is pressed and held for five seconds. 4.3 System Testing 4.3.
11-2017 4. Operation 7. When the generator output is acceptable (the Generator set Power Available LED is lit) the control starts the TDNE timer. 8. After the TDNE timer expires, the transfer switch transfers to the generator set (the Generator set Power Connected LED is lit). 9. The control continues to run the generator with the transfer switch connected to the generator set until the control panel Test pushbutton is momentarily pressed or the ground is removed from the Remote Test input. 10.
4. Operation 11-2017 The following image illustrates how the pickup and dropout settings work. 4.4.1.1 Utility Under-Voltage Set Points NOTICE If the utility under-voltage pickup is set at 90%, then the dropout has to be set lower than 90%. TABLE 3. UTILITY UNDER-VOLTAGE SET POINTS Description Available Set Points Under-voltage Pickup (% of Nominal) 95% Under-voltage Dropout (% of Nominal) 90% 90% 85% 80% 70% 4.4.1.2 Under-Voltage Sensing No. Description No.
11-2017 4. Operation 4.4.2.1 Generator Set Under-Voltage and Under-Frequency Set Points TABLE 4. GENERATOR SET UNDER-VOLTAGE AND UNDER-FREQUENCY SET POINTS Description 4.4.
4. Operation 11-2017 • If the external exerciser is used, the External Exercise ON/OFF function must be set to ON. • If the external exerciser is factory-supplied, the External Exercise ON/OFF function is set to ON at the factory. • If the external exerciser is not factory installed, the External Exercise ON/OFF function is set to OFF. 4.5.2 Exercise With or Without Load The exercise with/without load configuration works with both types of exercisers. The default value is, without load.
11-2017 4. Operation The Exercise LED flashes at a rate of twice per second for 5 seconds and then goes out to signify that repeat exercise periods are cancelled. 4.5.3.4 Canceling An Active Exercise Period Active exercise periods can be cancelled by pressing the Override pushbutton on the control panel or by grounding the remote override input on the back of the control panel. 4.5.3.
4. Operation No. 11-2017 Description No. Description 1 Indicators of when exercises are scheduled for the current DAY.
11-2017 4. Operation 3. Press OK push button to display the DATE formats. 4. Press - or + push buttons to select the desired date format, then press the OK push button. The YEAR is displayed. NOTICE By pressing the ESC push button, i.e. the menu button, it is possible to return to the previous setting menu. For example, if the user had made a mistake and pressed the OK button too quickly, the menu button enables returning to the previous selection item. 5.
4. Operation 11-2017 8. Press the OK push button. Press - or + to select the desired Time Format. 9. Press the OK push button when the desired Time format is displayed. The screen then shows the HOUR value flashing. 10. Press the - or + push buttons until the correct HOUR is displayed. Press the OK push button. The screen then shows the MINUTE value flashing. 11. Press the - or + push buttons until the correct minute is displayed. Press the OK push button.
11-2017 4.6.2 4. Operation LCD Lighting (Display Back Light) The LCD light (Display Back Light) can be set to "Always On" or "Off After 1 Minute." • ALWAYS ON = background lighting is never switched off • OFF AFTER 1 MINUTE = background lighting is switched off again 1 minute after the last time the button was pressed 1. From the Home menu, press the Menu button. The PROGRAM menu is displayed. 2. Press the + push button three times. The OPTIONS menu is displayed. 3.
4. Operation 11-2017 NOTICE In the battery mode (no mains) there is no LCD lighting. 4.6.3 Using the Menu Buttons The Menu selection button is used to select four display modes that have adjustable menus. • Time/DATE mode is used to set the correct DATE and time. This mode can also be used to automatically switch to the correct summer/winter time. • Program mode is used to set, review and clear exercise start/stop times.
11-2017 4. Operation 1. Press the Menu push button on the exercise clock. The PROGRAM menu is displayed. 2. Press the + push button. The TIME/DATE menu is displayed. 3. Press the OK button to display the TIME menu. 4. Press the OK push button to display the HOUR menu. Hour value will flash. 5. Press the – or + push button to set the correct hour. Press the OK push button to display the MINUTE menu. Minute value will flash. 0962-0131 (Issue 6) 37 Copyright © 2017 Cummins Inc.
4. Operation 11-2017 6. Press the – or + push buttons to set the correct Minute. Press the OK button to display the TIME menu. 7. Press the + push button. The SET DATE menu is displayed. 8. Press the OK push button to display the YEAR menu. Year value will flash. 9. Press the - or + push buttons to set the correct year. Press the OK push button to display the MONTH menu. Month value will flash. 10. Press the - or + push buttons to set the correct Month.
11-2017 4. Operation 12. Press the + push button. The Summer/Winter (SU--WI) menu is displayed. 13. Press the OK push button to display the World Area menu. It is possible to choose between 6 pre-set changeover settings, use own changeover settings with 2 different methods, or switch off the automatic summer/winter time changeover using - or + push buttons. Country value will flash. 14.
4. Operation 11-2017 TABLE 5. COUNTRY CODES AND NAMES Code Country Name GB Great Britain IRL Ireland FIN Finland GR Greece TR Turkey CDN Canada USA United States of America IRAN Iran EUROPE Europe 15. Press the - or + push buttons to display SU-WI FREE RULE, and press the OK push button to set up your own changeover times. 16. Press the OK push button to display the menu for setting the month when the summer changeover will take place.
11-2017 4. Operation 18. Press the OK push button to display the menu for setting the day of the week when the summer changeover will take place. Press the - or + push buttons until the desired week day (1 to 7 [1 = Monday, 7 = Sunday]) is displayed. The word "DAY" and number in lower left corner will flash. TABLE 6. DAYS OF THE WEEK Number Day of the Week 1 Monday 2 Tuesday 3 Wednesday 4 Thursday 5 Friday 6 Saturday 7 Sunday 19.
4. Operation 11-2017 21. Press the OK push button to display the menu for setting the week when the winter changeover will take place. Press the - or + push buttons until the desired week ( 1 to 5 [1 = first week, 4 = fourth week, 5 = last week]) is displayed. TABLE 7. WEEK TABLE Number Week 1 First Week 2 Second Week 3 Third Week 4 Fourth Week 5 Last Week NOTICE The starting time of the winter changeover is the same time that was set previously. 22.
11-2017 4. Operation 1. From the Home menu, press the Menu button. The PROGRAM menu is displayed. 2. Press the OK button. The NEW Program menu is displayed. 3. Press the OK push button. A brief fade-in now occurs which is only for the programming of the free memory locations. The number of available programmable time periods (maximum of 56) is temporarily displayed. This fade-in can be prematurely ended by pressing the OK push button. 4.
4. Operation 11-2017 6. With the arrow push buttons - and +, set the MINUTES for the switch-on (00 minutes) and confirm with the OK push button. The minute value will flash. 7. With the arrow push buttons - and +, select the first weekday for the switching time (Monday = DAY1) followed by confirmation with the OK push button. MONDAY and the number value in the lower left will flash. 8.
11-2017 4. Operation 11. After the weekday Sunday, SAVE is offered again. SAVE will flash. The switch-on timing of Monday at 12:00 AM has now been copied from Sunday. Confirm the programming by pressing the OK Push button. 12. The NEW Program menu is redisplayed. The switch-off time still has to be entered. Press OK push button. 13. Press the OK push button. A brief fade-in now occurs which is only for the programming of the free memory locations.
4. Operation 4.6.8 11-2017 Checking the Programs The Check Program menus are used to review all set exercise start/stop times and, if necessary, delete them. NOTICE If the Menu button is pressed while viewing start/stop programs, the program check function is aborted and the Home menu is redisplayed. 4.6.8.1 Reviewing Exercise Start/Stop Times All exercise start and stop exercise parameters can be viewed from the Program Check menu.
11-2017 4. Operation NOTICE If no exercise periods are set up, the message “EMPTY" is displayed. To return to the NEW Program menu, press the OK push button. 5. Review additional set exercise periods and return to the Main menu. To exit the Check Programs function without reviewing all set exercise periods, press the - or + push buttons until "END" is displayed. Press the OK button followed by the menu button twice to return to the Main menu. 4.6.8.
4. Operation 11-2017 4. Press the OK push button to modify the Monday switch-on time. The MODIFY HOUR menu is displayed. The hour value will flash. 5. Press - and + push buttons to modify the hour. Press the OK push button to display the MODIFY MINUTE menu. The minute value will flash. 6. Press - and + push buttons to modify the minutes. Press the OK push button to display the MODIFY BLOCK menu. The numbers at the bottom of the screen will flash. 7.
11-2017 4. Operation 4.6.8.3 Deleting Exercise Start/Stop Times We can delete individual start and stop times. 1. From the Home menu, press the Menu button. The PROGRAM menu is displayed. 2. Press the OK push button. Press + push button 3 times. The DELETE menu is displayed. 3. Press the OK push button. The SINGLE menu is displayed. NOTICE In the DELETE submenu it is also possible to select what is to be deleted.
4. Operation 11-2017 5. Press the OK push button to display the DELETE BLOCK menu. The entire switching time block (switch on at 9:00 AM from Monday to Sunday) can be deleted. The numbers at the bottom will flash. 6. Press the + push button to remove MONDAY specifically from the block and delete it. The number in the lower part of the screen will flash. 7. Press the OK push button. The confirmation of the delete procedure is displayed briefly followed by an automatic return to the DELETE menu. 8.
11-2017 4.6.9 4. Operation Initiating or Overriding an Exercise Program The exercise clock has a built-in test feature that can be used to initiate an exercise that hasn't been programmed or cancel a programmed exercise in progress. The control panel Load/No Load function can be set to test the generator set with or without the load as desired. 4.6.9.1 Initiating an Exercise In the example shown below, “Off" indicates that no exercise is currently active. 1.
4. Operation 11-2017 1. With the Home menu displayed, simultaneously press the - and + buttons for approximately one second. “OVERRIDE" and a hand symbol are displayed on the screen. In addition, “On" is switched to “Off" to indicate the exercise is stopped. 2. To restart the exercise, simultaneously press the - and + buttons for approximately one second. The original Home menu is redisplayed and “Off" is switched back to “On." 4.6.
11-2017 4. Operation 2. To switch to Permanent Off mode, press the – and + push buttons for approximately three seconds. “PERM OFF" is displayed and “On" is switched back to “Off." 3. To return the clock to its original state, simultaneously press the – and + buttons for approximately one second. The original Home menu is redisplayed. 4.6.10.2 Selecting Permanent On/Off Mode With an Active Exercise In the example shown below, “On" indicates that an exercise is currently active. 1.
4. Operation 11-2017 2. To switch to Permanent On mode, press the – and +push buttons for approximately three seconds. “PERM ON" is displayed and “Off" is switched back to “On." In addition, a continuous band of segments is displayed on the top of the screen. 3. To return the clock to its original state, simultaneously press the + –and + buttons for approximately one second. The original Home menu is redisplayed. 4.6.
11-2017 4. Operation NOTICE If the – or + button is pressed now, the message “END" is displayed. Press the OK push button to return to the Home menu. 4. Press the OK button to display the NO PIN menu. NO PIN will flash. NOTICE If NO PIN is selected and confirmed with the OK push button, a return is made to PIN 5. Press the – or + button to display the With PIN menu. WITH PIN will flash. 6. Press the OK push button to display the CURRENT PIN (here 0000). Continue with the OK push button. 7.
4. Operation 11-2017 8. Press the - or + buttons to enter the first digit of the PIN code and confirm with the OK push button. 9. After this, the second, third and fourth number of the PIN code is stipulated. As soon as the fourth number has been confirmed with the OK push button a return is made to the auto mode. Important Note: The PIN number is immediately valid and the time switch is locked by it.
11-2017 No. 4. Operation Description No. Description 1 Display mode (Auto, Prog, , or Man) 8 +/- buttons Used to increase/decrease values, to scroll through menus and to select special functions.
4. Operation 11-2017 FIGURE 14. 4.7.1 EXTERNAL EXERCISE CLOCK Using the Menu Button The Menu selection button is used to select three display modes that have adjustable menus. • Clock mode is used to set the correct date and time. This mode can also be used to automatically switch to the correct summer/winter time. • Program mode (Prog) is used to set, review and clear exercise start/stop times. • Manual mode (Man) is used to enter a 4-digit code to prevent changing settings by unauthorized personnel.
11-2017 4. Operation 2. Press the + button. The Date/Time menu is displayed. 3. Press the ok button to display the Year menu. 4. Press the + or - button to set the correct year. Press the ok button to display the Month menu. 5. Press the + or - button to set the correct month. Press the ok button to display the Day menu. 6. Press the + or - button to set the correct day. Press the ok button to display the Hour menu.
4. Operation 11-2017 7. Press the + or - button to set the correct hour. A line is displayed on the screen indicating the hour of the day selected (the left side of the screen is for the first half of the day [AM] and the top of the screen is for the second half of the day [PM]). Press the ok button to display the Minute menu. 8. Press the + or - button to set the correct minute. Press the ok button to display the Summer/Winter menu.
11-2017 4. Operation 10. Press the + or - button to display the With Summer/Winter menu. 11. Press the ok button to display the World Area menu. 12. Either select one of the world areas that has been programmed for automatic time correction or else set up your own changeover times. NOTICE With the Daylight Savings Time program set for North America, • The first Sunday in April moves the time forward one hour. • The last Sunday in October moves the time back one hour.
4. Operation 11-2017 13. 14. Press the ok button to display the menu for setting the month when the Summer changeover will take place. Press the + or - buttons until the desired month is displayed. 15. Press the ok button to display the menu for setting the week when the Summer changeover will take place. Press the + or - buttons until the desired week (1 thru 5 [1 = first week, 4 = fourth week, 5 = last week]) is displayed. 16.
11-2017 4. Operation 18. Press the ok button to display the menu for setting the week when the Winter changeover will take place. Press the + or - buttons until the desired week (1 thru 5 [1 = first week, 4 = fourth week, 5 = last week]) is displayed. NOTICE The starting time for the winter changeover is the same time that was set previously. 19. Press the ok button. The Home menu is redisplayed and the appropriate summer/winter symbol is displayed. 4.7.
4. Operation 11-2017 1. From the Home menu, press the Menu button. The Program menu is displayed. 2. Press the OK button. The New Program menu is displayed. 3. Press the OK button. The number of available programmable time periods (maximum of 28) is temporarily displayed. 4. The Starting Time (Time On) menu is displayed. Press the OK button. Copyright © 2017 Cummins Inc.
11-2017 4. Operation 5. The Hour menu is displayed. Press the + or - buttons to set the desired exercise starting hour (default = 12:00 AM). A line is displayed on the screen indicating the hour of the day selected (the left side of the screen is for the first half of the day [AM] and the top of the screen is for the second half of the day [PM]). Press the OK button. 6. The Minute menu is displayed. Press the + or - buttons to set the desired exercise starting minute. Press the OK button. 7.
4. Operation 11-2017 10. To repeat an exercise more than once a week, press the OK button when the Copy menu is displayed. The Add ___day menu is displayed. The day after the day selected in step 7 is displayed. 11. Press the + or - buttons to select the desired day of the week that an exercise is to begin. Press the OK button. 12. Press the + or - buttons. The Store menu is displayed. Press the OK button.
11-2017 4. Operation 13. The New Program menu is redisplayed. 14. Press the OK button to enter a time the exercise is to end. The number of available programmable time periods is temporarily displayed. Please note that the number of available programmable time periods has now decreased by one. 15. The Ending Time (Time Off) menu is displayed. Press the OK button. 16. Repeat steps 5 through 13 to set up the stop time for your exercise. 17.
4. Operation 11-2017 NOTICE If there are any exercises scheduled for the current day, those time periods are indicated on the screen. 4.7.6 Checking the Programs The Check Program menus can be use to review all set exercise start/stop times and, if necessary, delete them. NOTICE If the Menu button is pressed while viewing start/stop programs, the Program Check function is aborted and the Home menu is redisplayed. 4.7.6.
11-2017 4. Operation 3. Press the + button once. The Check menu is displayed. 4. Press the OK button. The Monday menu is displayed. NOTICE If no exercise periods are set up, the message “Empty" is displayed. To return to the New Program menu, press the ok button. 5. Use the + or - buttons to select the day of the week you wish to check. Press the OK button. The starting time for the first exercise for the selected day is displayed.
4. Operation 11-2017 6. Press the OK button. The ending time for the first exercise for the selected day is displayed. 7. Press the OK button. The next exercise start time is displayed. If the next start time is not on the day selected in step 5, the day of the week is indicated on the bottom of the screen. 8. Review additional set exercise periods and return to the Main menu.
11-2017 4. Operation NOTICE If an exercise period has been programmed with a start time only, a continuous band of segments is displayed on the left side and top of the screen showing the time of day the incomplete exercise period is set to begin. This band of segments is also displayed on any other exercise periods scheduled for that day. If an exercise period has been programmed with a stop time only, no special indicator is displayed. The stop time is simply ignored. 4.7.6.
4. Operation 11-2017 4. Press the OK button. The Monday menu is displayed. 5. If necessary, use the + or - buttons to select the day of the week that includes the exercise ending time you wish to delete. 6. Press the OK button. 7. Press the + or - buttons until “Clear" is displayed. 8. Press the OK button. The New Program menu is redisplayed. Individual or all exercise periods can also be cleared. Copyright © 2017 Cummins Inc.
11-2017 4.7.7 4. Operation Erasing (Clearing) A Programmed Exercise Period 1. From the Home menu, press the Menu button. The Program menu is displayed. 2. Press the OK button. The New Program menu is displayed. 3. Press the + or - button until the Clear menu is displayed. 4. Press the + or - button until “Single“ is displayed. 5. Press the OK button. The first exercise start time of the week is displayed.
4. Operation 11-2017 6. Press the OK button. The New Program menu is redisplayed. 7. Repeat steps 3 through 6 to erase the stop time for the exercise period erased above. 8. If necessary, repeat steps 3 through 7 for any additional exercise periods that need to be erased. 9. When the New Program menu is redisplayed, press the + or - buttons until the word “END" is displayed. 10. Press the OK button to return to the Home menu. 4.7.8 Erasing (Clearing) All Programmed Exercise Periods 1.
11-2017 4. Operation 4. To clear all set exercise periods, press the + or - buttons until “All" is displayed. Press the OK button. 5. The word “Confirm" is displayed. To continue clearing all exercise programs, press the OK button. To abort clearing all exercise programs, press the + or - buttons. 6. The new program menu is redisplayed. Press the + or - buttons until the word “END" is displayed. 7. Press the OK button to return to the Home menu. 4.7.
4. Operation 11-2017 1. With the Home menu displayed, simultaneously press the + and - buttons for approximately one second. “Override" and a hand symbol are displayed on the screen. In addition, “Off" is switched to “On" and the exercise is initiated. 2. To end the exercise, simultaneously press the + and - buttons for approximately one second. The original Home menu is redisplayed and “On" is switched back to “Off." 4.7.9.
11-2017 4. Operation 2. To restart the exercise, simultaneously press the + and - buttons for approximately one second. The original Home menu is redisplayed and “Off" is switched back to “On." 4.7.10 Selecting Permanent On/Off Mode The exercise clock has a permanent on/off mode feature. 4.7.10.1 Selecting Permanent On/Off Mode Without an Active Exercise In the example shown below, “Off" indicates that no exercise is currently active. 1.
4. Operation 11-2017 2. To switch to Permanent Off mode, press the + and - buttons for approximately two seconds. “Perm Off" is displayed and “On" is switched back to “Off." 3. To return the clock to its original state, simultaneously press the + and - buttons for approximately one second. The original Home menu is redisplayed. 4.7.10.2 Selecting Permanent On/Off Mode With an Active Exercise In the example shown below, “On" indicates that an exercise is currently active. 1.
11-2017 4. Operation 2. To switch to Permanent On mode, press the + and - buttons for approximately two seconds. “Perm On" is displayed and “Off" is switched back to “On." In addition, a continuous band of segments is displayed on the left side and top of the screen. 3. To return the clock to its original state, simultaneously press the + and - buttons for approximately one second. The original Home menu is redisplayed. 4.7.
4. Operation 11-2017 2. Press the + button twice. The Date/Time menu is displayed, followed by the Manual menu. 3. Press the OK button to display the Pin menu. NOTICE If the + or - button is pressed now, the message “End" is displayed. Press the OK button to return to the Home menu. 4. Press the OK button to display the No PIN menu. 5. Press the + or - buttons to display the With PIN menu. Copyright © 2017 Cummins Inc.
11-2017 4. Operation 6. Press the OK button to display the PIN Number menu. NOTICE If you choose not to enter a 4-digit access code at this time, the only way to exit Manual mode is to press the reset (Res) button. 7. Press the + or - buttons to enter the first digit of your 4-digit access code. 8. Press the OK button. Then press the + or - buttons to enter the second digit of your 4-digit access code. 9. Repeat step 8 for the third and fourth digit of your 4-digit access code. 10. Press the OK button.
4. Operation 11-2017 2. If the incorrect language is being displayed, use the + or - button to scroll through the available languages (English, Espanol, Francais, Portugal, Italiano, or Deutsch). 3. When the desired language is displayed, press the OK button. The year is displayed next. 4. Press the + button until the correct year is displayed and then press the OK button. The month is displayed next. 5. Press the + or - button until the correct month is displayed and then press the OK button.
11-2017 4. Operation 8. Press the + or - button until the correct minute is displayed. Press the OK button. The screen then displays the correct date and time. 4.8 Planned Maintenance Performing the annual planned maintenance procedures increases reliability of the transfer switch. The following procedures must only be done by technically qualified personnel, according to procedures in the Service Manual. If repair or component replacement is necessary, call your dealer or distributor.
4. Operation 11-2017 TABLE 8. PLANNED MAINTENANCE Disconnect All Sources of AC Power: 1. Disconnect both AC power sources from the transfer switch before continuing. Turn the generator set operation selector switch to Stop. (The selector switch is located on the generator set control panel.) 2. If there is an external battery charger, disconnect it from its AC power source. Then disconnect the set starting battery (negative [-] lead first). Clean: 1.
5 Control Panel Configuration The control panel can be used to configure ATS functions. When in Configuration Mode, the value code for the various control functions can be modified. The control panel has a series of eight LEDs that display codes that indicate various control functions that can be configured. The first five LEDs display the function code and the last three LEDs display the value code for the displayed function.
5. Control Panel Configuration 5.1 11-2017 Modifying the Configuration The control has been configured at the factory and does not require additional adjustments. However, you may wish to adjust some of the settings for your application. CAUTION Incorrect settings can result in the transfer switch failing to operate correctly. Only authorized trained personnel should make changes to the control function settings.
11-2017 5.2.1 5. Control Panel Configuration Not Available Function Function Code Value Code Not Available 5.2.2 Value (Default) N/A Time Delay Engine Start (TDES) Function Function Code Value Code TDES (Time Delay Engine Start) Value (Default) 0 Seconds (Disabled) 0.5 Second 1 Second 2 Seconds (3 Seconds) 4 Seconds 6 Seconds 10 Seconds 5.2.
5. Control Panel Configuration 5.2.4 11-2017 Time Delay Emergency to Normal (TDEN) Function Function Code Value Code TDEN (Time Delay Emergency to Normal) Value (Default) 0 Minutes (Disabled) 0.1 Minutes (for testing) 5 Minutes (10 Minutes) 15 Minutes 20 Minutes 25 Minutes 30 Minutes 5.2.5 Time Delay Engine Cool-Down (TDEC) Function Function Code TDEC (Time Delay Engine Cool-Down) Value Code Value (Default) 0 Minutes (Disabled) 0.
11-2017 5.2.6 5. Control Panel Configuration Time Delay Program Transition (TDPT) Function Function Code Value Code TDPT (Time Delay Program Transition) Value (Default) (0 Seconds) (Disabled) 0.5 Second 1 Second 2 Seconds 3 Seconds 4 Seconds 6 Seconds 10 Seconds 5.2.7 Time Delay Elevator Signal (TDEL) Function Function Code Value Code TDEL (Time Delay Elevator Signal) Value (Default) (0 Seconds) (Disabled) 1 Second 2 Seconds 3 Seconds 5 Seconds 30 Seconds 120 Seconds 300 Seconds 5.2.
5. Control Panel Configuration 5.2.9 11-2017 External Exercise On/Off Function Function Code Value Code Value **External Exercise On/Off Off On 5.2.10 Exercise With/Without Load Function Function Code Value Code Exercise With/Without Load Value (Default) (Without Load) With Load 5.2.11 System Nominal Voltage Table Selection Function Function Code Value Code **System Nominal Voltage Table Selection Value Table 1 ↓ Table 2 ↓ 5.2.11.
11-2017 5. Control Panel Configuration 5.2.12 System Nominal Frequency 50/60 Hz Function Function Code Function Code **System Nominal Frequency 50/60 Hz Value 60 Hz 50 Hz 5.2.13 Single Phase/Three Phase Function Function Code Value Code **Single Phase/Three Phase Value Three Phase Single Phase 5.2.14 Utility Under-Voltage Pickup Function Function Code Value Code Utility Under-voltage Pickup Value (Default) (90%) 95% 5.2.
5. Control Panel Configuration 11-2017 5.2.17 Return to Programmed Transition On/Off Function Function Code Value Code Return to Programmed Transition On/Off Value (Default) (Off) On 5.2.18 Elevator Post Transfer Delay On/Off Function Function Code Function Code Elevator Post Transfer Delay On/Off Value (Default) (Off) On 5.2.
6 Troubleshooting 6.1 Control Panel Indicators The control panel contains six LED indicators that provide some information about the current control status and may be helpful in troubleshooting the transfer switch. No. Description No.
6. Troubleshooting 11-2017 TABLE 9. CONTROL PANEL LED INDICATORS Indicator Utility (Normal) Power Available Definition This indicator lights when the utility source voltage sensor has determined that Utility power is available and is within acceptable voltage limits. Utility (Normal) Power Connected 1. Lights constantly when the transfer switch is connected to Utility Power. 2. Is off when the transfer switch is not connected to Utility Power. 3.
11-2017 6. Troubleshooting FIGURE 18. 6.2.1 NORMAL/CONFIGURATION MODE SELECTOR SWITCH Power Outage Occurs, But Generator Set Does Not Start WARNING AC power within the cabinet and the rear side of the cabinet door presents a shock hazard that can cause severe personal injury or death. Use extreme caution to avoid touching electrical contacts whenever the cabinet door is open. 1. The operation selector switch on the generator set control panel should be set at Auto.
6. Troubleshooting 11-2017 WARNING AC power within the cabinet and the rear side of the cabinet door presents a shock hazard that can cause severe personal injury or death. Use extreme caution to avoid touching electrical contacts whenever the cabinet door is open. 2. Check the Test/Exerciser Active indicator to see whether it is in an exercise period.
11-2017 6. Troubleshooting When the digital display is not available, diagnosis of problems involves observing system operation. If you cannot determine the problem, contact Cummins/Onan Service. 6.3.1 After A Power Failure, Generator Set Starts But Does Not Assume Load Sync check could be active and the sources could be out of sync, or TDNE or TDEL could be timing. 1. Check the output voltage of the power source by observing the voltmeter on the generator set.
6. Troubleshooting 6.3.4 11-2017 System Does Not Test With Load WARNING AC power within the cabinet and the rear side of the cabinet door presents a shock hazard that can cause severe personal injury or death. When the cabinet door is open, use extreme caution to avoid touching electrical contacts with body, tools, jewelry, clothes, hair, etc. The ATS must be in Normal and normal power must be available. 1.
11-2017 6.3.5 6. Troubleshooting System Does Not Exercise With Load WARNING AC power within the cabinet and the rear side of the cabinet door presents a shock hazard that can cause severe personal injury or death. When the cabinet door is open, use extreme caution to avoid touching electrical contacts with body, tools, jewelry, clothes, hair, etc. The ATS must be in Normal and normal power must be available. Is an exercise programmed? Is the external clock enabled? Set the generator set switch to Auto.
6. Troubleshooting 11-2017 d. A phase check may be enabled. When the phase check function is enabled, the genset does not assume the load until both sources are within acceptable limits of the phase check sensor. 6.3.6 External Exercise Clock Does Not Start An Exercise The ATS must be connected to Normal and normal power must be available and the generator set switch should be set to Auto.
11-2017 6. Troubleshooting 6.3.10 Battery Loses Charge Battery charger could be bad, there could also be too large of a load on the battery. Change the battery or lessen the load. The battery charger float voltage could be too low (if equipped with battery charger). Call your dealer or distributor. 6.4 15/12-Amp Battery Charger Troubleshooting and Faults The 15/12-amp battery charger includes one set of Form-B alarm contacts (corresponding to the status LED on the control panel).
6. Troubleshooting 6.4.3 11-2017 Troubleshooting Using Fault Codes WARNING Some battery charger service procedures present hazards that can result in severe personal injury or death. Only trained and experienced personnel may perform service. WARNING Ignition of explosive battery gasses can cause severe personal injury. Do not smoke or cause any spark , arc or flame while servicing batteries.
11-2017 6. Troubleshooting Fault Description Possible Cause Solution 2331 - LOW AC VOLT Low Input Voltage AC input voltage is more than Check level of input 10% below nominal rated voltage. Charger will voltage. not operate with voltage 10% or more below nominal. 2358 - HIGH AC VOLT High Input Voltage AC input voltage is more than Check level of input 10% above nominal rated voltage. Charger will voltage. not operate with voltage 10% or more above nominal.
6. Troubleshooting 11-2017 This page is intentionally blank. Copyright © 2017 Cummins Inc.
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