8 — DIAGNOSTIC AND TROUBLESHOOTING
Curtis Model 1226 – September 2019
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pg. 84
Table 33 Faults, cont’d
Code Fault and Fault Action Possible Causes Set and Clear Conditions
11,8
SW FAULT
ShutdownMotor
ShutdownMainContactor
ShutdownEMBrake
ShutdownThrottle
ShutdownInterlock
ShutdownDriver1
ShutdownDriver2
ShutdownDriver3
ShutdownDriver4
ShutdownDriver5
Defective controller. Set: The controller did not power
up correctly.
Clear: Cycle the keyswitch.
11,9
Push SRO
ShutdownEMBrake
ShutdownThrottle
The push switch was on when the keyswitch
was powered on.
Set: The operator turned the
keyswitch on while the push
switch was on.
Clear: Turn off the push switch,
then cycle the keyswitch.
11,10
BB Wiring LOS
The controller reduces speed
to that specied with the BB
Wiring LOS parameter.
Bad crimps or faulty wiring Set: The wire connecting Driver
2 and the emergency reverse NO
switch is broken and the BB Wiring
Fault LOS Enable parameter is on.
Clear: Repair the wiring, then cycle
the keyswitch.
11,11
Motor Short
ShutdownMotor
ShutdownEMBrake
ShutdownMainContactor
M1 and M2 are shorted Set: The controller detects M1 and
M2 are shorted when the interlock
is turned on.
Clear: Fix the connections to M1
and M2, then cycle the keyswitch.