Rockwell Automation 1503VC IntelliVAC Plus Contactor Control Module - Manual (Page 63)

4-36 Description of Features
1503-UM054C-EN-P – June 2013
Line Undervoltage
This is a Warning condition which may not be rectified by the user.
Check input line voltage levels and rectify if possible.
The line mains input voltage has gone to a voltage level of <95Vrms
when the contactor is initiating a close cycle or the input voltage has
gone below a voltage level of 80Vrms when the contactor is in a hold
cycle.
If the Time Delay Undervoltage (TDUV) feature is enabled (see
Appendix B) them the contactor will remain energized for as long as
the TDUV feature is set (see Appendix B).
The Line Undervoltage warning is an aggregate warning for each of
the five (5) IB units.
The Plus status LED is pulsing Green with a pattern of 3 pulses.
Line Overvoltage
This is a Warning condition which may not be rectified by the user.
Check the input line voltage levels and rectify if possible.
The line input voltage has gone to a voltage level of >265Vrms
which may be a dangerous voltage level for the IntelliVAC Plus unit.
If the input line voltage exceeds 280Vrms then the integrity of the
product will be jeopardized and a critical failure may occur.
The Line Overvoltage warning is an aggregate warning for each of
the five (5) IB units.
The Plus status LED is pulsing Green with a pattern of 4 pulses.
Extended Close Time
This is a Warning condition used as a wear indicator of the contactor
over its lifetime which may not be rectified by the user. Check the
mechanical condition of the contactor.
The close time of the contactor has increased to a value beyond the
normally accepted time of 90mS to a value >150mS (see Table 4.G
for maximum close values for each contactor).
The Extended Close Time warning is an aggregate warning for each
of the five (5) IB units.
The Plus status LED is pulsing Green with a pattern of 5 pulses.