Eaton ELC-PB, Programming Manual

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B . Tr o u b l e s h o o t i n g
M N 0 5 0 0 3 0 0 3 E F o r m o r e i n f o r m a t i o n v i s i t : w w w. e a t o n . c o m
B - 3
Symptom Troubleshooting and Corrective Actions
Input does not turn
on.
Check the corresponding input indicator LED. If the indicator is OFF:
1. Check the wiring of the input device
2. Check that power is present at the input terminals, and that the
voltage level is within the specified range for the ELC Input.
3. If the power is present at the input terminal within the specified
range but the input LED is off, a failure in the ELC’s input circuit is
indicated. Contact the Eaton support center.
If the power is NOT present at the input terminal, a failure in the input
device or input power supply is indicated.
If the input LED indicator is ON:
1. Monitor the input condition using a programming tool. If the input
monitored is OFF, a failure in the ELC’s input circuit is indicated.
Contact the Eaton support center.
2. If the input monitored is ON, check the program flow and input
address assignments.
Input does not turn
off
Check the corresponding Input LED. If the indicator is ON
1. Check the wiring of the input device
2. If a two-wire sensor is used, check for excessive leakage current.
3. Check the voltage level at the input terminal. If it is below the input
threshold but the Input LED is ON, a failure in the ELC input circuit
is indicated. Contact the Eaton support center
If the LED indicator is OFF
1. Monitor the input condition with a programming tool. If the input
monitored is ON, a failure in the ELC’s input circuit is indicated.
Contact the Eaton support center
2. If the input monitored is off check the program flow and input
address assignment.