The following is a description of a condition in which you are unable to control the output power level on your Enercon Compak 2000 power supply.
The following is a description of a condition in which you are unable to control the output power level on your Enercon Compak 2000 power supply.
| Symptom & Fault |
| Symptom |
The power supply is in the run condition. The up/down arrows do not have any effect on the power level. |
| Fault |
The fault could be attributed to a loose ribbon cable, a defective membrane, or main control board. |
| NOTE! |
If the power supply has a manual/remote option, the switch must be in the manual position for the membrane control to be effective. |
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| Solution |
- Check the ribbon cable connections on the main control board. Ensure the blue striped side of the cable is connected to pin 1 of the plugs, If the membrane is remotely mounted, ensure the interconnecting wires are connected properly and the connections are tight.
- Check the DC voltage reference provided by the membrane switches at the control board. (Item 2)
- With a DC voltmeter, connect the common lead to TB1 pin 6 and the positive lead to U1 pin 1. Ensure the voltage increased to 5 VDC when the up arrow is depressed.
- With a DC voltmeter, connect the common lead to TB1 pin 5 and the positive lead to U1 pin 5. Ensure the voltage decreases to 0 VDC when the down arrow is depressed.
- If the voltages ramp correctly, replace the control board.
- If the voltage does not change:
- Check the ribbon cable for damage. (Item 19)
- Replace the membrane. (Item 1)
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Symptom & Fault Symptom The power supply is in the run condition. The up/down arrows do not have any effect on the power level. Fault The fault could be attributed to a loose ribbon cable, a defective membrane, or main control board. NOTE! If the power supply has a manual/remote option, the switch must be in the manual position for the membrane control to be effective. Solution
- Check the ribbon cable connections on the main control board. Ensure the blue striped side of the cable is connected to pin 1 of the plugs, If the membrane is remotely mounted, ensure the interconnecting wires are connected properly and the connections are tight.
- Check the DC voltage reference provided by the membrane switches at the control board. (Item 2)
- With a DC voltmeter, connect the common lead to TB1 pin 6 and the positive lead to U1 pin 1. Ensure the voltage increased to 5 VDC when the up arrow is depressed.
- With a DC voltmeter, connect the common lead to TB1 pin 5 and the positive lead to U1 pin 5. Ensure the voltage decreases to 0 VDC when the down arrow is depressed.
- If the voltages ramp correctly, replace the control board.
- If the voltage does not change:
- Check the ribbon cable for damage. (Item 19)
- Replace the membrane. (Item 1)
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