Rockwell Automation 1503VC IntelliVAC Plus Contactor Control Module - Manual (Page 166)

Troubleshooting 10-3
1503-UM054C-EN-P – June 2013
Table 10.A – IB Operational Troubleshooting Procedures (cont.)
LED Color
State Condition/Possible Cause Corrective Action
Module
Status
Contactor
Status
Yellow -
Red
3 flash
Off/Yellow
(depends
on status
of
contactor)
Warning Long contactor drop out time
Contactor Auxiliary status missing
Faulty contactor coil
Faulty vacuum bottles Check that the Contactor Auxiliary status
connection between the contactor and
TB11/1,2 on the IntelliVAC Plus is correct.
Check the condition of the main contactor
coil.
Check the mechanical condition of the
vacuum bottles.
Red Red Fault Microcontroller malfunction
Low input mains voltage
Faulty IntelliVAC Plus
Check that the IntelliVAC Plus input
voltage is greater than or equal to the
minimum level listed in the Electrical
Specifications section. Recycle the input
power, as well as the DeviceNet power, if
present.
Replace the IntelliVAC Plus unit.
Red
1 flash
Off Fault Power up with invalid DIP switch
configuration
DIP switches set incorrectly
1. The SW1/SW2 DIP switches are set.
See DIP switch configuration and
confirm that it is correct for the
contactor being controlled.
Red
3 flash
Red Fault Contactor fails to drop out
1. Contactor Auxiliary status missing
2. Contactor Auxiliary status contact
bad
3. Faulty vacuum bottles
4. Obstruction in contactor
Check that the Contactor Auxiliary status
connection between the contactor and
TB11/1,2 on the IntelliVAC Plus is correct.
Check that the contactor Auxiliary status
contacts are functioning.
Check that the contactor bottles are not
welded closed.
Check that there is not an obstruction (or
possible binding in the contactor pivot
points) in the contactor which prevents
the bottle armature from opening.
Red
4 flash
Off Fault RS 485 communications error
Application jumper incorrectly installed
Enhanced module in reset state
RS485 cables missing/bad
1. Check that the Enhanced module
Application Disable jumper (JP3) is in
position 2-3 and not in position 1-2.
2. Check that the Plus Status LED is not
solid red (Advanced module has a
microcontroller malfunction).
3. In an MC system check that the RS485
cable connection s between all of the
modules is correct.
Red
4 flash
Off Fault Application jumper incorrectly installed in
other MC units
4. In an MC system check that the
IntelliVAC MC units programming
jumpers (JP1) are in position 2-3 and
not in position 1-2.