Model: 9115 Multi Range DC Power Supply USER MANUAL
Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be observed during all phases of operation, service, and repair of this instrument. Before applying power, follow the installation instructions and become familiar with the operating instructions for this instrument. If this device is damaged or something is missing, contact the place of purchase immediately.
WARNING: Do not alter the ground connection. Without the protective ground connection, all accessible conductive parts (including control knobs) can render an electric shock. The power jack and mating plug of the power cable meet IEC safety standards. WARNING: To avoid electrical shock hazard, disconnect power cord before removing covers. Refer servicing to qualified personnel. CAUTION: Before connecting the line cord to the AC mains, check the rear panel AC line voltage indicator.
Compliance Statements Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems) This product is subject to Directive 2002/96/EC of the European Parliament and the Council of the European Union on waste electrical and electronic equipment (WEEE) , and in jurisdictions adopting that Directive, is marked as being put on the market after August 13, 2005, and should not be disposed of as unsorted municipal waste.
CE Declaration of Conformity The power supply meets the requirements of 2006/95/EC Low Voltage Directive and 2004/108/EC Electromagnetic Compatibility Directive with the following standards.
Safety Symbols Refer to the user manual for warning information to avoid hazard or personal injury and prevent damage to instrument. Chassis (earth ground) symbol. On (Supply). This is the AC mains connect/disconnect switch on the front of the instrument. Off (Supply). This is the AC mains connect/disconnect switch on the front of the instrument.
Table of Contents 1 General Information ................................................................................... 10 1.1 1.2 1.3 1.4 Product Overview ........................................................................................................... 10 Package Contents ........................................................................................................... 10 Product Dimensions ............................................................................................
Restore Factory Default Settings ........................................................................................... 26 Configure Power-On State..................................................................................................... 26 Configure Trigger Source ....................................................................................................... 27 Save/Recall Instrument Settings ...........................................................................................
1 General Information 1.1 Product Overview B&K Precision 9115 is a multi range single output high power supply with the capability of producing up to 80 V or 60 A at a maximum power output of 1200 W. With an easy-to-read VFD display, user-friendly controls and a numeric keypad, it allows for easy configurations from the front panel. Standard RS232, USB, GPIB, and RS485 interfaces included on the rear panel provide flexibility for remote operation of the power supply.
1.3 Product Dimensions The power supply’s dimensions are approximately: 415mm (16.3 in) x 44 mm (1.7 in) x 500 mm (19.7 in) (WxHxD). It is designed to fit in a standard 19-inch rackmount and is of 1U size. Figure 1 - Front Panel View Figure 2 - Side View 1.
Front Panel Description 1 Power On/Off switch 2 VFD display 3 Voltage adjust knob 4 Current adjust knob Up/Down/Left/Right arrow keys Used to adjust cursor location and selecting menu items. On/Off / Lock button Control the output state or locks the front panel button. Save/Recall button Used to save and recall instrument settings. Meter display toggle / Local button Used to toggle display between setting and measured voltage and current or to set the instrument back to local mode.
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1.6 Display Overview OFF CC CV Rmt Addr Error Trig 80.000V 1 Prot * Shift 12.000A 0.0 W VOVP = 85.
2 Getting Started Before connecting and powering up the instrument, please review and go through the instructions in this chapter. 2.
2. Use a flat blade screwdriver and turn the fuse capsule counter-clockwise. There is an internal spring that will push it out after turning a few times. 3. Pull out the glass tube fuse inside to check and replace as necessary. 4. Insert the fuse capsule in the same location and use the flat blade screwdriver to turn clockwise. 5. The fuse capsule will now be locked and secured. 2.2 Output Connections The main DC output terminal is a screw type terminal located in the rear panel.
WARNING: Before connecting wires to the output terminals, turn OFF the power supply to avoid damage to the instrument and the device under test (DUT). For safety, load wires must have a wire gauge size large enough to prevent overheating when the power supply operates at maximum short circuit output current. It will also prevent large voltage drops from resistances in the wires. 2.3 Preliminary Check Complete the following steps to verify that the power supply is ready for use. 1. 2.
If any of these errors occur, please contact B&K Precision. Output Check Voltage Check Follow the steps below to check basic voltage output with no load connected. 1. Turn on the power supply. The display will show the OFF annunciator above the voltage display. 2. Enable the output by pressing , and the button will be lit. The OFF annunciator will change to CV. 3. Using the numeric keypad or the voltage adjust knob and enter a voltage value. The voltage display will now show the value you entered.
6. (Optional) You may also verify the output current by connecting either the (+) and (-) terminals on the rear panel to an external current meter capable of measuring the current that you set. The measured value should match or be within the entered current value. 7. Press the power switch to O(OFF) position to turn off the power supply and remove the short on the output terminals. Check Model and Firmware Version The model and firmware version can be verified by using the *IDN? query remote command.
3 Front Panel Operation 3.1 Menu Options All settings and parameters can be configured from the built-in menu system of the power supply. To access the menu, press and press . The menu system is divided into 4 sections and are organized as follows: SYSTEM CONFIG LIST Initialize Power-On Trigger Memory Buzzer Communication ReturnMeter Reset power supply settings to factory default values. Configure power-on state. Configure Trigger. Select memory location for save/recall instrument settings.
SYSTEM MENU In it i al i ze Powe r-O n 5. The selected item will be blinking. Use keys to move through the menu items. When there is a on the right side of the display, that means there are more menu items available to select from. Similarly, a will appear on the left side of the display when there are menu items to the left. Use the keys accordingly to select the desired menu item. 6. Press to access the selected menu item. 7. There may be parameters or options to select within each menu item.
Setting Current Follow the steps below to set the output current: 1. From the normal front panel display, users can use either the current adjust knob or the numeric keypad to enter the setting current. 2. If entering using numeric keypad, press first so that the cursor selects the current display. Then, enter the value and press to set the current. 3. To change the cursor position to adjust with the voltage adjust knob, use the to move left or right.
WARNING: DO NOT disconnect the wires if remote sense is not used. Doing so will cause erratic behavior and may damage the power supply under certain conditions. Never connect any power source into any of the four terminals at any time during operation. When output is enabled, DO NOT use your hands to touch the terminals or the screws that are designed to tighten wires to the terminals. Doing so may create a shock hazard under high voltage output conditions.
WARNING: DO NOT at any time disconnect the wires from the Vs+ and Vs- terminals to the DUT while output is enabled (ON). Doing so may damage the power supply and cause unstable output. 3.3 Protection Settings Configure Over Voltage Protection (OVP) Follow the steps below to set the OVP limit: 1. Press the button. The display will show VOVP on the bottom right. Use the voltage adjust knob or the numeric keypad to enter the OVP limit. 2. Press to save the change. The display will then show TOVPdly.
Configure Maximum Power Limit Follow the steps below to set the maximum power limit: 1. Press and then . The display will show Pmax on the bottom right. Use the voltage or current adjust knob or the numeric keypad to enter the maximum power output limit. 2. Press to save the change. 3. Use the voltage or current adjust knob or the numeric keypad to enter a value. This can be from 1 ms – 600 ms. 4. Press to save the change. OVP is now configured. Notice the will turn on. This means OVP is enabled. 5.
Restore Factory Default Settings All instrument settings can be reset back to their factory default values by doing the following: WARNING: Restoring the instrument to factory default will change all current instrument settings and parameters back to their default values. 1. From the SYSTEM menu, select Initialize and press . 2. The instrument will return to the normal display and all settings are now restored back to factory default. The below table lists some of the factory default settings.
4. To exit the menu at any time, press twice. Configure Trigger Source The trigger function is used to initiate the start of running a program sequence (list). The trigger source can be set so that users can send a trigger from the front panel or through a remote command via remote interface. Follow the below steps to configure the trigger mode: 1. From the SYSTEM menu, browse and select Trigger and press . 2. There are two options: Manual(Def) – Manual trigger.
Save Settings 1. Set up all the instrument settings that you want to save. 2. Then, press and . The display will show the following: OFF 80.000V 12.000A S ave D ata to B ank : 0 3. Use the current adjust knob or the numeric keypad to enter the memory location in which to store current instrument settings. Select between 0 – 9. Press to the selection location. 4. If it saved successfully, there will be a message on display: Save Success! to save Recall Settings 1. Press .
Enable/Disable Key Sound The instrument initially has key sound enabled from factory. To disable or re-enable the key sound, follow the steps below: 1. From the SYSTEM menu, browse and select Buzzer and press 2. Select between the two options: On(Def) – Enable key sound Off – Disable key sound 3. Select the desired option and press . to save the change. 4. To exit the menu at any time, press twice.
4. Use to select between each serial settings, and use 5. Below list the options that can be changed for each setting: Baudrate: 4800, 9600, 19200, 38400, 57600, 115200* Data bits: 8 Parity: N (None), E (Even), O (Odd) Stop bit: 1, 2 Addr: 0 to 31 to change the settings. Note: The default is 4800, 8, N, 1, Address = 0. *Setting the baudrate to 115200 may provide unstable results during remote communication. Select a lower baudrate if communication errors occur. 6.
RS-485 Multiple power supplies (up to 31) can be connected together in series and be controlled via the DB-9 RS-485 interface. 1. From the SYSTEM menu, browse and select Communication and press . 2. Select RS485 and press to set to RS485 for remote communication. The following display will be shown: RS485 48 00 , 8 , N , 1 , Add r . . . 3. 4800 is the baudrate; 8 is the data bits; N is the parity; 1 is the stop bit; Addr… is for address. 4.
Return Meter This option allows users to enable an internal fixed timer delay (5 seconds) for the power supply to automatically switch from setting display to measured display. When enabled, if the power supply output state is ON (enabled) and if the display shows setting voltage and current, it will automatically switch to measured voltage and current display after 5 seconds. The backlight of the button will also be lit.
WARNING: DO NOT enable this function for battery test applications (i.e. battery charging) and all applications that may have a high charge. If a battery with a low voltage is connected to the power supply while the output is OFF (disabled), the dummy load will drain the battery. If the battery capacity is large and this function is enabled, a large current will flow and damage the power supply and the dummy load. To enable or disable this function, follow the steps below: 1.
2. Select 10v-M or 5v-M so that it is blinking. Use the keys to change between 10vM and 5v-M. – 0 – 5 V scale is used for monitoring 0 – 100% of output. 10v-M – 0 – 10 V scale is used for monitoring 0 – 100% of output. 3. Press 4. Press when finished making the selection. several times to exit the menu. Configure Control Source Follow the steps below to configure the source to use for programming the voltage and current output.
1. From the CONFIG menu, browse and select Ext-Ctrl and press screen will display: Ext – Ctrl Setup 1 0v- M 10v /10 k-P V- P . The following Of f 2. Select the third item V-P or R-P so that it is blinking. Use the keys to change between V-P or R-P. V-P – Use external DC voltage source for programming the output. R-P – Use external resistance for programming the output. 3. Press 4. Press when finished making the selection. several times to exit the menu.
DGND EXT ON SHUT_OFF POWER_OK CV_CC+ CV_CCVPRG REF_10V IPRG VMON IMON AGND Ground pin Control output state Emergency shut off Status output CV mode status CC mode status Voltage programming input 10V DC reference output Current programming input Voltage monitoring output Current monitoring output Ground pin Figure 6 - Analog Interface Pin Assignments WARNING: DO NOT input any voltages above 10 V DC or 10 kΩ resistance or below 0 V DC to any of the 25 pins. Doing so will damage the power supply.
Power Supply Status The power supply status can be monitored using POWER_OK (pin 16) output and DGND (pin 1). During normal operating conditions, this pin will output 5 VDC. If OTP condition or other abnormalities occur, this pin will output 0 VDC. Monitoring Operation Mode The operation mode of the power supply can be monitored using CV_CC+ (pin 18) and CV_CC(pin 19) output pins. CV Mode – Pin 18 and Pin 19 will output 5 V DC. CC Mode – Pin 18 and Pin 19 will output –5 V DC.
Configure Voltage Limit The minimum and maximum set voltage can be configured on the power supply to limit the settable voltage range for protection. Note: At any time during operation, when you are unable to set to a desired voltage, check this voltage limit setting to make sure the set value is within range. Follow the steps below to configure the voltage limits: 1. From the CONFIG menu, browse and select Limit and press screen will display: . The following Voltage Range Vmin = 0.000 V 2.
to function. Connection and Setup Connecting multiple power supplies in parallel or in series can increase the overall current output or voltage output respectively. For this configuration to function properly, there are several items that must be set up first. Follow the instructions in this section carefully for setup. Connection Determine the total number of power supplies that you want to connect in parallel or series. Disable the output of the power supplies and power OFF the power supplies.
- + DUT + - - + DUT + - Master/Slave Setup Only one power supply has to be configured as a Master. The rest must be configured as Slave. Up to 3 units can be configured in total. Note: Configure Slave power supplies FIRST, and configure the Master power supply LAST. For remote or front panel operation, only control the Master power supply.
1. From the CONFIG menu, select Online and press Online Setup Paral le l S l ave . The following will display: Add r… Of f 2. While Parallel or Series is flashing, use keys to toggle between the two options. Set to Parallel for parallel connection and Series for series connection. 3. Press the key to select Slave or Master. Use the keys to select between the two options. Select Master to set the power supply as a master, or select Slave to set the power supply as a slave.
Sequence #1 Step 1.. Step 2.. .. Step 10.. Program #1 Sequence #1 Sequence #2 .. Sequence #10 Save Memory Sequence #10 Step 1.. Step 2.. .. Step 10.. Run Program # Program #10 Sequence #2 Sequence #5 Sequence #7 Sequence #8 Recall There are three separate configurations to set up for programming and running a sequence (in order): 1. Configure Sequence Parameters 2. Configure Program (List) 3. Recall and Run Program Note: These configurations must be set up in order.
Table 3 - Step Parameter Range Parameter Voltage Setting Current Setting Width Slope Adjustable Range 0.000 – < OVP Voltage 0.000 – *max. current setting 0.001 seconds – 86400 seconds 0.002 seconds – 86400 seconds *Maximum current and voltage setting cannot exceed maximum power configured under P-max setting. As an example, follow the steps below to set up a sequence with fixed current limit of 1 A, as illustrated below: V 3 2 1 S 1s 2s 3s 3s 1. Access the main menu by pressing 2.
SEQ A c ti ve Step: 09876 54321 5. These numbers represent the step numbers of the sequence, where “0” represents step number 10. At this point, use the numeric keypad and try to push any numbers 0 – 9. Notice that the number you press will correspond to the number displayed in Active Step and will toggle to display a “Y” in its place. 6. The “Y” represents a selection of the step number, making it an active step (meaning the step is enabled in the sequence).
9. This is prompting the user to enter the voltage setting for step 1. Use the voltage and current adjust knob or the numeric keypad and enter 1.000. Then press . 10. The display will change to the following, prompting the user to enter the current setting for step 1. EDIT SEQ CURRENT S eq Step 1 Cu r rent = 1.000 A 11. Similar to entering the voltage setting in the previous step, do the same to enter 1.000 as the current setting. Then press .
SAVE SEQ No Yes 16. If stored successfully, the display will show a message Save Success! After a few seconds, it will return to the LIST menu. Configure Program (List) The sequence(s) to execute and run can be selected, as well as its repetitiveness. This means multiple sequences can be run one after another. With 10 steps per sequence and up to 10 sequences configured, a program can run with a maximum of 100 steps.
EDIT LIST POWER L ist Powe r = 120 0.0 W 3. This parameter is configured to limit the maximum power of the program (list) when it is executed. Leave it default to 1200.0 for maximum power output. Press following will display: and the EDIT LIST REPEAT L ist Re pe at = 1 4. The display prompts the user to enter the number of times to repeat the program (list). For this example, enter 5 with the numeric keypad and then press . Note: The maximum number of repeat times is 65535 times. 5.
FILE A c ti ve Seq : 0 987654 3YY 8. Once these two sequences are selected (active), press SEQ REPEAT S eq 1 Repe at : to see the following: 1 9. The display prompts the user to enter the number of times to repeat sequence #1 as part of the program (list). In this example, use the current adjust knob or the numeric keypad to enter 2. Press and the same prompt will immediately follow for sequence #2. Enter 3 and then press . 10. Now it will display the following to confirm saving the program (list).
1. From the LIST menu, use the key to select Recall and press . The display will say RECALL LIST with the prompt Recall List File: to ask to enter a number. 2. This is the location number where the program is stored in. Select a number between 1 to 10 with the current adjust knob or the numeric keypad, then press 3. The display will return back to the LIST menu. . Run Program To run a program sequence after it is recalled, the trigger source must be configured first.
3.6 Configure Voltage Slope The power supply has the capability of controlling the slope of the output voltage during changes between voltage settings. Timings can be configured for both the rising and falling edge between voltage output transitions. To illustrate this feature and provide configuration instructions, follow the example below.
2. Trise is the rising edge time for an output voltage transition. Use the numeric keypad or the current adjust knob and enter 5.000 s (5 seconds). 3. Press and Tfall will be displayed. Tfall is the falling edge time for an output voltage transition. 4. Use the numeric keypad or the current adjust knob and enter 10.000 s (10 seconds). 5. Press and the power supply will return to the normal display. 6. Now, set voltage to 5 V using the numeric keypad or the voltage adjust knob.
4 Remote Operation 4.1 Interface Connection RS-232 For RS-232 connectivity, refer to the diagram below for pinout information. The RS-232 is labeled in the rear panel and it is a female DB-9 interface. 5 4 9 3 8 PIN 1 2 3 4 5 6 7 8 9 2 7 1 6 Description Transmit Data Receive Data GND - A straight pin-to-pin DB9 female to DB9 male serial cable is required for using the RS-232 interface. Do not use a null modem or crossover DB9 serial cable.
RS-485 For multi-unit configuration and control, the male DB-9 interface labeled RS-485 in the rear panel is used. The figure below illustrates the connection pins and description. Note: Pin 1 is used as the B pin (+) (non-inverting). Pin 5 is used as the A pin (-) (inverting). SC (reference) pin is not used. 5 4 9 3 8 PIN 1 2 3 4 5 6 7 8 9 2 7 1 6 Description B (+) A (-) - USBTMC The device is SR1, RL1, and DT1 enabled.
5 Troubleshooting Guide Below are some frequently asked questions and answers. Please check if any apply to your power supply before contacting B&K Precision. General Q: I cannot power up the power supply. - Check that the power cord is securely connected to the AC input and there is live power from your electrical AC outlet. - Verify that the AC power coming from the mains have the correct voltage. The power supply can accept a specific range of AC input voltages. Refer to section “2.1”.
6 Specifications Note: All specifications apply to the unit after a temperature stabilization time of 15 minutes over an ambient temperature range of 23 °C ± 5 °C. Specifications are subject to change without notice. Environmental Conditions: This power supply is designed for indoor use and operated with maximum relative humidity of 95%.
To ensure the most current version of this manual, please download the latest version here: http://www.bkprecision.com/search/9115 For current up-to-date product information, please visit www.bkprecision.
7 Calibration We recommend a calibration interval of once per year to ensure that the power supply meets specifications. The instrument features closed-case calibration, however it is done remotely via the remote interface.
SERVICE INFORMATION Warranty Service: Please go to the support and service section on our website at www.bkprecision.com to obtain a RMA #. Return the product in the original packaging with proof of purchase to the address below. Clearly state on the RMA the performance problem and return any leads, probes, connectors and accessories that you are using with the device. Non-Warranty Service: Please go to the support and service section on our website at www.bkprecision.com to obtain a RMA #.
LIMITED ONE-YEAR WARRANTY B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will be free from defects in workmanship and materials for a period of one year from date of purchase. B&K Precision Corp. will, without charge, repair or replace, at its option, defective product or component parts. Returned product must be accompanied by proof of the purchase date in the form of a sales receipt. To obtain warranty coverage in the U.S.A.
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