Rockwell Automation 1503VC IntelliVAC Contactor Control Module - Manual (Page 34)

5-2 Monitoring and Troubleshooting
1503-UM051D-EN-P – June 2013
Contactor Status The Contactor Status is indicated with a yellow LED that is off until
a CLOSE command is received. The LED will stay on if the
contactor closes properly, until the contactor is opened.
Contactor Status output relay has a normally open contact. The
contact is open when the contactor is open (LED off), and closed
when the contactor has received a close command (for 200
milliseconds) or if it is closed (LED on).
Series B Design
Additional module states are indicated with the LED as per Table 5.B.
Table 5.A – IntelliVAC Status Indication (Series A design)
Parameter Conditions LED State Relay Contact State
• rated supply voltage
and
• valid configuration
Green Closed
• undervoltage
or
• contactor fault
or
• invalid configuration X
or
• internal fault
Red Y
Open
Module Status
Y
• insufficient supply voltage Off Open
• rated supply voltage
and
• close command present [
and
• contactor closed
Yellow Closed
Contactor
Status • insufficient supply voltage
or
• close command absent [
or
• contactor open
Off Open
X Applies only to power-up condition.
Y Fault is reset by cycling control power.
Z If a contactor close command is applied and then removed in less than 500 milliseconds, the
IntelliVAC may fault and the module status LED will turn red. To clear the fault, module power has to
be removed and reapplied.
[ For mechanical latch contactors a close command does not need to be maintained for the contactor
to remain closed (resulting in a yellow state for contactor status).