Appendix I—Troubleshooting Guide
S811+ Soft Starter
MN03900001E—November 2012
85
Notes
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.
75
Line Frequency (low)
Fault Trip
Fault Warning
Disable
Mains input voltage frequency
has decreased below the
threshold set by the user.
Increase line frequency to within limits.
Adjust parameter limits.
Notes:
To address line frequency instability and/or excessive variations, adjust limit parameters according. This protection may be set to Fault Warning Status
to allow continued operation during excessive frequency variations.
Line Frequency (low)
trip level threshold range is 5–150% (default 50%) of line
voltage. The
Line Frequency Trip Delay
range is 1–60 seconds (default 3 seconds).
76
Auto Reset Limit
Fault Trip
Number of AUTO reset attempts
has been exceeded.
Reset limit counter with a Manual reset.
Adjust reset limit counter threshold.
Notes:
This condition requires a MANUAL reset. A Manual reset clears the Fault Trip condition and resets the limit counter to zero (0).
*
Product Fault
Control Fault
Fault Trip
Internal PCB problems
Contact EatonCare for service.
*
LCD DIM setup
Fault Trip
Communications adapter
connected to CH1 with DIM
installed.
Failure of PCB
Firmware fault
Install communications adapter to correct port.
Cycle 24 Vdc to attempt to clear fault.
Perform a hard reset to attempt to clear fault.
*
DIM Display
Unreadable
Fault Trip
Digital Interface Module failure
Replace the DIM to restore operation.
Purge command device (DIM) from memory to enable the soft starter
to run without the DIM.
Notes:
There is only one model DIM, part number EMA91 for all S811+ soft starters. All operating parameters for the soft starter are stored in non-volatile
memory on the printed circuit board, so the DIM’s may be exchanged between all models (sizes) of soft starters if a replacement DIM is not available.
*
Cannot RESET fault
Fault Trip
Fault condition still exists.
Soft Starter has not received
RESET signal
Troubleshoot fault and correct defective condition.
Attempt alternate methods of RESET
Notes:
The RESET signal can be applied from any one of three locations: the DIM soft key, the small recessed RESET button on the face of the soft strter, and by
applying 24 Vdc to terminal “4” of the Control Voltage Terminal Block. The small recessed RESET button on the face of the soft starter is a sub-miniature
switch mounted on the PCB. You will feel a slight detent when the switch closes. Pressing the switch beyond this point does not increase your chances
of clearing a fault, but may cause permanent damage to the switch. If the detent cannot be felt when pushing the button, proper operation of the switch
is suspect. If the soft starter cannot be RESET with the push button, but can be RESET by applying 24 Vdc to Terminal Block “4”, the push button switch
is damaged.
*
Run without DIM
—
DIM is non-functional or
intermittent.
Soft Starter may be run with existing parameters without the DIM
installed.
DIM may be reinstalled and control power applied, initialization
process will recognize DIM.
Notes:
To run the soft starter without the DIM, simply remove the DIM from the S811+.
To reinstall a DIM that has been removed, remove 24 Vdc control power, reinstall the DIM, then restore 24 Vdc control power. If the START command
was issued from the Start button on the DIM, removal of the DIM will initiate a TRIP due to lost communication. If the START command was issued from
the control terminal block or the network, the S811+ will continue to run.
S811+ Fault Codes, continued
Code
Fault
Status
Condition
Solution