Rockwell Automation 193-EDN E1Plus Overload Relays - DeviceNet Module - Manual (Page 46)

Publication 193-UM006A-EN-P – October 2005
5-6 Troubleshooting
OUT A Output A does not appear
to turn on (close) when
commanded to do so. 1. Check the supply voltage on the DeviceNet connector.
2. Check the OUTA status LED. If the appropriate LED does not illuminate, check the
programmable controller ladder logic and I/O mapping.
3. If the appropriate Output LED is illuminated, remove the control circuit power and
check for continuity across the appropriate output terminals (13/14). If the
continuity test indicates the output is open, replace the E1 Plus DeviceNet Module.
Check the supply voltage against the ratings of the contactor and the relay output
before installing a new unit.
4. Remove control circuit power and check the control circuit fuse and the control
wiring to the E1 Plus DeviceNet Module output terminals.
5. Check the control circuit power supply. Verify the voltage is within the contactor
and overload relay ratings.
6. Check the DEVICE STATUS and TRIP STATUS parameters. If a Protection Fault
exists, refer to the Trip and Warning troubleshooting procedure. If a
DeviceNet-related fault exists, refer to the DeviceNet troubleshooting procedure.
7. Check the OUTA Pr FltState, Pr FltValue, Dn FltState, Dn FltValue, Dn IdlState, and
Dn IdlValue programmable parameters. The Pr FltState and Pr FltValue parameter
supersede the Dn Flt or Dn Idle parameters.
OUT A Output A does not appear
to turn off (open) when
commanded to do so. 1. Check the OUTA status LED. If the appropriate LED remains illuminated, check the
programmable controller ladder logic and I/O mapping.
2. If the appropriate Output LED is not illuminated, remove the control circuit power
and check for continuity across the appropriate output terminals (13/14). If the
continuity test indicates the output is closed, replace the E1 Plus DeviceNet
Module. Check the supply voltage against ratings of the contactor and the relay
output before installing a new unit.
3. Remove control circuit power and check the control circuit fuse and the control
wiring to the E1 Plus DeviceNet Module output terminals.
4. Check the OUTA Pr FltState, Pr FltValue, Dn FltState, Dn FltValue, Dn IdlState, and
Dn IdlValue programmable parameters. Then check the DEVICE STATUS and TRIP
STATUS parameters. If a Protection Fault exists, refer to the TRIP STATUS
parameters. If a Protection fault exists, refer to the Trip and Warning
troubleshooting procedure. If a DeviceNet-related fault exists, refer to the
DeviceNet troubleshooting procedure.
OUT A The contactor connected
to Output A appears to
“chatter” 1. Verify the OUT A LED remains in the appropriate On or Off state. If the LED is
flickering, check the programmable controller’s ladder logic program.
2. Check the control circuit supply voltage. Verify it is within the ratings of the
contactor coil and the overload relay’s outputs.
3. Remove the control circuit power. Verify all control wiring is properly secured.
Table 5.2 Input and Output Troubleshooting Procedures (Continued)
Failure Type Failure Description Corrective Action