Troubleshooting
8 S611 Soft Starter MN03901003E—January 2012 www.eaton.com
Troubleshooting
S611 Fault Codes
Code Fault Condition Solution
3
Watchdog • Firmware fault —
5 Internal Memory • Internal FRam memory error • Component failure on printed circuit board
• Contact EatonCare for service
6 User Interface Communications
Failure
• Communications to UI have been
interrupted
• Possible hardware failure
• Firmware is not communicating internally
• Cycle 120 Vac control voltage power to attempt to
clear problem
7 Internal Program Memory • Corrupted firmware or memory
• Flash CRC
• Cycle 120 Vac control power to the S611
• Contact EatonCare for service
8 Voltage Zero Cross Lost • Mains voltage lost
• Phase L1 or L3 lost
• Load disconnected
• Restore mains or lost phases
• Verify that the load is connected and any disconnect
devices are properly engaged
• Contact EatonCare for service
9 Communications Loss Port A • Communications to a remote network
controller was lost during run cycle
• Device disconnected
• Connection lost
• Reattach network controller, verify that the unit is
recognized by the system controller
10 Communications Loss Port B • Communications to a remote network
controller was lost during run cycle
• Device disconnected
• Connection lost
• Reattach network controller, verify that the unit is
recognized by the system controller
• Comms Port B adapter module failed or disconnected
15 Power Pole Over Temperature • SCR temperature is above limits
• Operating environment above specified
maximum temperature
• Ventilation holes blocked
• Fans are not operational
• Starts/hour exceed specifications
• Sensor failure on power pole
• Bypass contactor(s) failed to close
• Ventilate to specified maximum temperatures
• Clear obstructions
• Verify fans are operational
• Verify system is not exceeding the specified
maximum starts per hour
• Verify bypass contacts are closing at the end of ramp
time
• Reduce excessive cabinet temperature
16 Bypass Failure • Internal bypass contactor(s) not closed
and/or electrically sealed after ramp time
• Contactor(s) opened in bypass
• Verify all bypass contactor(s) close (audible noise)
• Verify all bypass contactor(s) not opening during run
cycle due to excessive vibration and/or shock
Reduce levels of vibration and/or shock
• Verify control power and wire size meet
specifications
• Verify that the control power supply meets the
120 Vac voltage and current requirements of the
IT. soft starter
17 SCR Not Firing • SCR is not conducting when gated
Incoming phase lost
• Special application—undersized or high
impedance motor
• Load disconnected
• SCR failure
• Re-apply lost phase
• Review S611 application
• Circuitry damaged by megger testing
• Contact EatonCare for service
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