Rockwell Automation 1503VC IntelliVAC Contactor Control Module - Manual (Page 33)

Chapter
5
1503-UM051D-EN-P – June 2013
Monitoring and Troubleshooting
Introduction The IntelliVAC module has two light emitting diodes (LEDs) and
relay outputs to indicate the status of the contactor and the module.
The LEDs are visible on the front of the module and the relay
outputs are accessed on the bottom front of the module.
Figure 5.1 – IntelliVAC LEDs
Module Status The Module Status is indicated with a Green LED if the module is
functioning properly and has a valid configuration. If the module
powers up with an invalid configuration the LED will be Red,
indicating a Fault condition which will not allow the contactor to
close. If the module powers up properly and experiences an
undervoltage condition when attempting to close the contactor or
while the contactor is closed, the LED will be Red (Fault). If the
contactor does not close properly, a Fault is generated, the LED turns
Red, and inputs are inhibited until the module power is removed and
reapplied. If the processor has an internal fault, the LED will be Red,
the outputs will be cleared, and the processor will be reset. If the
reset is successful, the LED will be Green and the module will respond
to the control inputs. The input command must be toggled before the
module will respond to a new command (rising edge triggered).
Module Status output relay has a normally open contact. The contact
is open during a Fault condition (LED red), and closed during a
healthy condition (LED green).
The module states for Series A are summarized in Table 5.A.
Series B Design
Additional module states are indicated with the LED as per Table 5.B.