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C48t-im.QXD 3/8/04 2:32 PM Page 38 INTRODUCTION The C48 Timer (C48T) is a multi-purpose series of industrial control products that are field-programmable for solving various applications. This series of products is built around the concept that the end user has the capability to program different personalities and functions into the unit in order to adapt to different indication and control requirements.
C48TTOCgreen.QXD 3/8/04 2:40 PM Page i TABLE OF CONTENTS GENERAL DESCRIPTION.............................................................................................................................................................1 Safety Summary.......................................................................................................................................................................1 Block Diagram .............................................................................
C48TTOCgreen.QXD 3/8/04 2:40 PM Page ii TABLE OF CONTENTS (Cont’d) Programming Menu................................................................................................................................................................13 Numeric Value Entry Method ...........................................................................................................................................13 Timer Range ..................................................................................
C48TTOCgreen.QXD 3/8/04 2:40 PM Page iii TABLE OF CONTENTS (Cont’d) Receiving Data .......................................................................................................................................................................26 Terminal Emulation Program For IBM® PC ...........................................................................................................................27 Serial Connections ........................................................................
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C48t-im.QXD 3/5/04 3:28 PM Page 1 GENERAL DESCRIPTION The Model C48 Timer is available in Single or Dual Preset models. The C48T features a 7 segment, 2 line by 6 digit reflective or backlit LCD display. For the backlit versions, the main display line is red and shows the timer value. The smaller secondary display line is green and can be used to view the preset values or output time values.
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C48t-im.QXD 3/5/04 3:28 PM Page 3 INSTALLATION & CONNECTIONS The C48 Timer meets NEMA 4X/IP65 requirements for indoor use to provide a watertight seal in steel panels with a minimum thickness of 0.09 inch, or aluminum panels with a minimum thickness of 0.12 inch. The units are intended to be installed into an enclosed panel. The complete unit assembly (i.e. PC boards and bezel), MUST be in the case when mounting the unit. Multiple Unit Stacking The C48T is designed for close spacing of multiple units.
C48t-im.QXD 3/5/04 3:28 PM Page 4 Mounting Instructions 1. Prepare the panel cutout to the dimensions shown in Figure 3, Multiple Unit Stacking. 2. Remove the panel latch from the unit. Discard the cardboard sleeve. 3. Carefully remove the center section of the panel gasket and discard. Slide the panel gasket over the unit from the rear, seating it against the lip at the front of the case. 4. Insert the unit into the panel cutout.
C48t-im.QXD 3/5/04 3:28 PM Page 5 Output Board The C48T is supplied with an output board installed. The output board is preconfigured for the type of output needed, based upon the Model ordered. See Ordering Information, page 35, for available models. All relay output boards are field replaceable. Replacing Relay Output Board 1. Remove the unit assembly. (See Removing Unit Assembly, page 4). 2. Lift up on the top bezel board latch while gently pulling out on the bezel/display board assembly.
C48t-im.QXD 3/5/04 3:28 PM Page 6 core several times or use multiple cores on each cable for additional protection. Install line filters on the power input cable to the unit to suppress power line interference. Install them near the power entry point of the enclosure.
C48t-im.QXD 3/5/04 3:28 PM Page 7 1. The terminal may be used as a +12 VDC output for sensor power. In this case, the PNP output voltage level will be +12 VDC (±15%). A maximum of 100 mA is available for the combination of sensor current and PNP output sourcing current. 2. If a higher PNP output voltage level or additional output sourcing current is desired, an external DC supply may be connected between the “DC OUT (VSRC IN)” and “COMM.” terminals.
C48t-im.QXD 3/5/04 3:28 PM Page 8 User Inputs Program Disable Plug Jumper The three external user inputs are programmable inputs that can be configured as current sinking (active low) or current sourcing (active high) inputs via a single plug jumper. Programmable external user inputs are digital inputs. The use of shielded cable is recommended. Follow the EMC Installation Guidelines for shield connection. See User Inputs, page 19, for a description of all available user input functions.
C48t-im.QXD 3/5/04 3:28 PM Page 9 FRONT PANEL DESCRIPTION The front panel bezel material is flame and scratch resistant, textured plastic with clear viewing window that meets NEMA 4X/IP65 requirements, when properly installed. Continuous exposure to direct sunlight might accelerate the aging process of the plastic material used in the bezel. The bezel should be cleaned only with a soft cloth and neutral soap product. Do NOT use solvents. The display is a dual line, 6 digit LCD.
C48t-im.QXD 3/5/04 3:28 PM Page 10 BASIC OPERATION Normal Operating Mode In the normal operating mode, the timer value is shown on the main display. By successively pressing the A key, the accessible presets or output time values can be viewed in the secondary display. Each of these values can be independently programmed to be viewable only, viewable and changeable, or locked (not viewable) in the normal operating mode. If all values are locked, the secondary display will be blank.
C48t-im.QXD 3/5/04 3:28 PM Page 11 Front Panel Accessible Functions With Program Disable There are several ways to limit the programming of parameters from the front panel keypad. The Accessible Value parameter is used with the Program Disable plug jumper and an external programmable User Input selected for Pro.dis to limit programming. To enter the programming mode, a code number may need to be entered, depending on the Program Disable Setting.
C48t-im.QXD 3/5/04 3:28 PM Page 12 PROGRAMMING GENERAL DESCRIPTION Programming of the C48T is done through the front panel keypad. English language prompts, flashing parameter values, and the front panel keypad aid the operator during programming. Although the unit has been programmed at the factory, the parameters generally have to be changed to suit the desired application. In order to access the Programming Menu, the Program Disable jumper and/or any User Input programmed for Pro.
C48t-im.QXD 3/5/04 3:28 PM Page 13 USER INTERFACE/PROGRAMMING MODES The operating modes of the C48T are programmed using the front panel keypad. (See page 12, for details on using the keypad to program the unit) Accessibility to the Programming Menu depends on the Program Disable Function setting (See page 11, for available program disable settings).
C48t-im.QXD 3/5/04 3:29 PM Page 14 Output 1: (Main Output for Single Preset Model) Latched - When Output 1 activates it stays activated or latched until it is manually reset. Timed - When Output 1 is activated it stays activated for the time specified by the Output 1 Time Value. Output 1 deactivates after the Output 1 time elapses.
C48t-im.QXD 3/5/04 3:29 PM Page 15 DUAL PRESET OPERATING MODES Use either of the two charts on the next two pages for more information on specific operating modes.
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C48t-im.QXD 3/5/04 3:29 PM rSt.P.uP no Page 17 Timer Reset at Power-up PrESEt This parameter determines whether or not the timer is reset when power is applied to the unit. MODE DESCRIPTION no Timer is not reset at power-up. The timer value saved at the previous power-down is restored to the display. Timer is reset at power-up. YEs PRS 1 1.
C48t-im.QXD 3/5/04 3:29 PM Single Preset Model Ac Out -L -ORDual Preset Model Ac Out Page 18 Access Output Time Values OutPut This parameter configures the type of access given to each Output Time Value when in normal operating mode and at Program Disable Level 1. The accessibility of each Output Time Value can be individually configured. For more details on Program Disable, see the Front Panel Accessible Functions With Program Disable, page 11. MODE -L -P -L-L -n -y 0. 0 1SEC OutPut 2 0.
C48t-im.QXD 3/5/04 3:29 PM Single Preset Model rEVAnu -n -OR- Reverse Annunciator Logic User Inputs This parameter controls the logic state of the Output Display Annunciators (‘01’ and ‘02’). Three external User Inputs plus the front panel function key are available on the C48 Timer. The parameter list below shows all available user input functions. The Input Pull-Up / Pull-down resistor and Active logic level for all of the User Inputs is configured with the Snk/Src jumper (See page 8).
C48t-im.QXD 3/5/04 3:29 PM Page 20 MODE DESCRIPTION Print Print Request [Level Active] (RS485 Option only); When the user input is activated, the timer and preset values, as configured in the Print Options (PrnOPt) parameter, will be continually transmitted on the RS485 terminals. See RS485 Serial Communications, page 24. rStOut CodE 0 Reset Outputs (Edge Triggered); When the user input is activated, all active outputs will reset to their inactive states. This is a momentary reset.
C48t-im.QXD 3/5/04 3:29 PM Page 21 The next five parameters pertain to serial communications and are only found on Dual Preset units with the RS-485 serial option installed. SErAbr no SErSEt 96n Serial Baud Rate and Parity Settings This parameter configures the Baud Rate and Parity Settings for RS485 Serial Communications.
C48t-im.QXD 3/5/04 3:29 PM PrnrSt no FAcSEt no Page 22 Print and Reset Timer Value OUTPUTS This parameter is used in conjunction with a Print Request (User Input or Serial Command) and the Print Options to determine whether or not the timer value is reset after the value is acquired for serial transmission. Ac Out OutrES OutPut OutPut rEVOut rEVAnu OutP.uP MODE DESCRIPTION no YES Do not reset timer value after Print.
C48t-im.QXD 3/5/04 3:29 PM Page 23 USER SETTINGS CHART EntrY NUMERIC VALUE ENTRY METHOD trAnGE OPEr rSt.P.
C48t-im.QXD 3/5/04 3:29 PM Page 24 RS-485 SERIAL COMMUNICATIONS DATA FORMAT - 10 BIT FRAME (Parity = none) RS-485 communications allows for transmitting and receiving of data over a single pair of wires. This feature can be used for monitoring various values, changing values, and resetting output(s), all from a remote location. Typical devices that are connected to a C48T unit are a printer, a terminal, or a host computer.
C48t-im.QXD 3/5/04 3:29 PM Page 25 VALUE IDENTIFIERS A (41H) Preset 1 B (42H) Preset 2 The command string is constructed in a specific logical sequence. The C48T will not accept command strings that do not follow this sequence. Only one operation can be performed per command string. Below is the procedure to be used when constructing a command string. MNEMONIC P1 P2 E (45H) Timer TMR 1 (31H) Output 1 N/A 2 (32H) Output 2 N/A 1.
C48t-im.QXD 3/5/04 3:29 PM Page 26 It is recommended that a “Transmit Value” command follow a “Change Value” Command. If this is done, the reception of the data can provide a timing reference for sending another command and will ensure that the change has occurred. When a “Change Value or Reset Value” command is sent to the C48T, there is time required for the unit to process the command string. The diagrams show the timing considerations that need to be made.
C48t-im.QXD 3/5/04 3:29 PM Page 27 Terminal Emulation Program For IBM® PC Utilizing the Serial communications capability of the C48T will require the use of an RS485 serial card in the computer. If an IBM® PC compatible is being used, this card would be installed in an expansion slot on the mother-board. The RS485 card should be configured for “2-wire half-duplex” operation. For this mode of operation, each piece of equipment must be able to switch from receive mode to transmit mode and vice-versa.
C48t-im.QXD 3/5/04 3:29 PM Page 28 CONNECTING TO A HOST TERMINAL Six C48T units are used to monitor and control parts packaging machines in a plant. C48T units are located at each machine in the production area of the building. A communication line is run to an Industrial computer located in the production office. The drawing shows the line connection. Each C48T is programmed for a different address and all are programmed for the same baud rate and parity as the computer (ex. 9600 baud, parity even).
C48t-im.QXD 3/5/04 3:29 PM Page 29 Troubleshooting Serial Communications If problems are encountered when interfacing the C48T(s) and host device or printer, the following check list can be used to help find a solution. 1. Check all wiring. Refer to the previous application and use it as a guide to check your serial communication wiring. Proper polarity of all C48T(s) and other peripherals must be observed. 2.
C48t-im.QXD 3/5/04 3:29 PM Page 30 APPENDIX “A” - APPLICATION EXAMPLE When the filler pump starts, a momentary contact closure activates User Input 1, resetting the C48 Timer. The timer begins the timing cycle since the run terminal is connected to common. The normally open relay contacts close at the timer reset signal activating the disinfectant solution pump. When the programmed preset is reached, timing stops and the relay deactivates, turning off the pump controlling the disinfectant solution.
C48t-im.QXD 3/5/04 3:29 PM Page 31 APPENDIX “B” - SPECIFICATIONS AND DIMENSIONS 5. INPUTS: Run/Stop, User Input 1, User Input 2, and User Input 3. Configurable as current sinking (active low) or current sourcing (active high) inputs via a single plug jumper. Current Sinking (active low): VIL = 1.5 VDC max, 22 KΩ pull-up to 5 VDC. Current Sourcing (active high): VIH = 3.5 VDC min., VIN max = 30 VDC; 22 KΩ pull-down. Run/Stop Response Time: 250 µsec max. User Input Response Time: 5 msec max. 6.
C48t-im.QXD 3/5/04 3:29 PM Page 32 Recognized to U.S. and Canadian requirements under the Component Recognition Program of Underwriters Laboratories, Inc. Type 4X Indoor Enclosure rating (Face only), UL50 IEC 1010-1, EN 61010-1: Safety requirements for electrical equipment for measurement, control, and laboratory use, Part 1.
C48t-im.QXD 3/5/04 3:29 PM Page 33 APPENDIX “C” - TROUBLESHOOTING The majority of problems can be traced to improper connections or incorrect set-up parameters. Be sure all connections are clean and tight, that the correct output board is fitted, and that the set-up parameters are correct. Also, be sure the User Input Plug Jumper position is correct for the particular application.
C48t-im.QXD 3/5/04 3:29 PM Page 34 APPENDIX “C” - TROUBLESHOOTING (Cont’d) PROBLEMS TIMER WILL NOT RESET WHEN A MANUAL RESET IS PERFORMED POSSIBLE CAUSE 1. User input not properly programmed. 2. User Input Snk/Src jumper configured improperly. REMEDIES 1. Verify programming of User Input parameter. 2. Configure Snk/Src jumper. PRESETS OR OUTPUT TIME 1. Front panel disabled. VALUES CAN BE VIEWED BUT NOT CHANGED 1. Verify programming of Access presets parameter.
C48t-im.QXD 3/5/04 3:29 PM Page 35 APPENDIX “D” -TERMINAL CONFIGURATIONS FOR C48 TIMERS Caution: Observe proper polarity when connecting DC voltages. Damage to the unit will occur if polarity is reversed.
C48t-im.QXD 3/5/04 3:29 PM Page 36 APPENDIX “E” - ORDERING INFORMATION C48TS C48TD PART NUMBER FOR AVAILABLE SUPPLY VOLTAGES NPN O.C.
C48t-im.QXD 3/8/04 2:32 PM Page 39 LIMITED WARRANTY The Company warrants the products it manufactures against defects in materials and workmanship for a period limited to one year from the date of shipment, provided the products have been stored, handled, installed, and used under proper conditions. The Company’s liability under this limited warranty shall extend only to the repair or replacement of a defective product, at The Company’s option.
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