Chapter 5 – monitoring and troubleshooting, Introduction, Module status – Rockwell Automation 1503VC IntelliVAC Contactor Control Module User Manual

Page 33: Monitoring and troubleshooting, Chapter

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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.

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