Electro Cam Plus PS-6144 Series, Programming & Installation Manual

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7-5 Troubleshooting
General Troubleshooting (cont’d)
Erratic Operation 1. Run the Watchdog Timer test described under MEMORY TESTS in the programming
section of this manual.
2. See “Resolver Troubleshooting,” page 7-3.
Analog output not working. 1. Check that ANALOG QTY and ANALOG OUTPUT are programmed correctly.
2. Check that analog output module is located in the correct module position. See Figure
5 or 6.
3. Check correct wiring of analog output.
4. Verify that analog load device is within specifications for the analog module.
5. Try a different analog output module.
1. Check that the correct program number is active.
2. Use OUTPUT STATUS to see if the controller is activating the output(s) at the correct
position in the resolver revolution. If not, verify that the SETPOINTS are correctly pro-
grammed. Other programming that may prevent an output from energizing includes
MOTION ANDING and OUTPUT ENABLE ANDING.
3. If OUTPUT STATUS shows the output is on, use a meter to see if the output terminal
is energized. If so, check the load device and its wiring. If not, go to Step 4.
4. Check the transistor array chips, Figure 17.
1. Check that the correct program number is active.
2. Use OUTPUT STATUS to see if the controller is activating the output(s) at the correct
position in the resolver revolution. If not, verify that the SETPOINTS are correctly pro-
grammed. Other programming that may prevent an output from energizing includes
MOTION ANDING and OUTPUT ENABLE ANDING.
3. If OUTPUT STATUS shows the output is on, use a meter to see if the output terminal
is energized. If so, check the load device and its wiring. If not, check the transistor
output fuse, Figure 18. Use the fuse tester built into the controller, Figure 17.
4. Check that 10-30 VDC power is connected to TB 11, Figure 10 & 11.
1. Check that correct program number is active.
2. Use OUTPUT STATUS to see if the controller is activating the output(s) at the correct
position in the resolver revolution. If not, verify that the SETPOINTS are correctly
programmed. Remember that AC/DC output modules are controlled by Channels
17-25 (1-17 on M17). Other programming that may prevent an output from energizing
includes MOTION ANDING and OUTPUT ENABLE ANDING and TIMED OUTPUTS.
3. If OUTPUT STATUS shows the output is on, but the LED on top of the module does
not light, try replacing the module.
4. If the LED on the module lights but the output terminal does not energize, check
the fuse built into the top of the module. Use the fuse tester built into the controller,
Fig. 17.
5. Check that load power is present in the circuit and correctly wired. Remember that
modules do not supply power to loads; they simply switch the load circuit on and off.
Some transistor outputs
not working
All transistor outputs
not working
AC/DC module not working