Chapter 6—Motor Protection
Power Xpert C445 Global Motor Management Relay MN042003EN—January 2019 www.eaton.com 127
Example #6
Mains voltage does not return above Voltage Return Level
setting in <VL Long Time. Contactor does not re-close and
voltage loss restart has ended. User must manually go
through restart sequence once voltage returns.
Figure 117. Example #6: Long-Time—Mains Voltage Does Not Return Before Long Time Expires
Protection and Monitoring
The C445 Base Control Module monitors several parameters
for motor protection. There are several ways to monitor
parameters.
●
The Monitoring User Interface
●
Power Xpert inControl
●
Over the communication network of choice
●
Web pages
Trip Protection will stop the motor if select parameter values
exceed set limits. There are data log records created and
stored in non-volatile memory. These snapshots can be
analyzed to determine the cause of failure. After a trip has
occurred, a reset feature may be configured to attempt to
reset the motor.
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