Troubleshooting
10 S611 Soft Starter MN03901003E—January 2012 www.eaton.com
S611 Fault Codes, continued
Note: All mains and control power connections must be completed and voltage applied prior
to a START command. Failure to make all connections will result in one or more faults.
All isolation and/or reversing contactors must be staged prior to any START commands.
Manipulating contactors after the START command will result in one or more faults.
Code Fault Condition Solution
29
Current Unbalance • The current imbalance of the incoming
phases exceeds the trip threshold
• Correct imbalance problem with mains
• Increase the
Current Imbalance parameters
• Disable the fault if the other issues cannot be
resolved
30 Current Phase Loss • Incoming phase disconnected
• Open fuse or breaker
• Phase imbalance exceeds specifications
or trip parameter
• Severe voltage phase imbalance
• Repair broken connection
• Replace fuse
• Inspect system for phase imbalance conditions
31 Voltage Phase Imbalance • The voltage imbalance of the incoming
phases exceeds the trip threshold
• Correct imbalance problem with mains
• Increase the
Voltage Fault Imbalance parameters
• Disable the fault if the other issues cannot be resolved
33 Jam • Soft starter in bypass: Motor below rated
RPM and/or current exceeds 3 x motor
FLA
• Remove obstruction
• Verify proper FLA setting in Operation mode
• Jam fault can be disabled if trips occur during normal
operation (Overcurrent fault will provide protection at
a higher current threshold of 4 x catalog FLA)
34 Contactor Overcurrent • Only active in bypass if the jam fault is
disabled
• Current exceeds the fault threshold of
4 x catalog FLA
• Remove obstruction in motor drive train
• Verify S611 is properly sized for the application
35 Missing Temp Sensor • Temperature sensor failure
• Internal connection failure
• Internal hardware failure (sensor and/or cable)
•
Note: Disabling this feature (Temp Sense fault in
Protection menu) will remove protection from
excessive temperature exposure (not recommended)
• Not field repairable, contact Eaton Support
* Cannot RESET fault • Fault condition still exists
• Soft starter has not received RESET
signal
• Troubleshoot fault and correct defective condition
• Attempt alternate methods of RESET
NC No communication • Firmware not programmed, firmware
corrupted
• Contact EatonCare for service
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