Snorkel SL26RTE Parts & Service Manual page 114

TROUBLESHOOTING
MOTOR FAULT CODES (3 OF 8)
PROGRAMMER LCD DISPLAY
CODE
EFFECT OF FAULT
28 Motor Temp Hot Cutback
Reduced drive torque.
29 Motor Temp Sensor Fault
MaxSpeed reduced (LOS, Limited
Operating Strategy), and motor
temperature cutback disabled.
31 Coil1 Driver Open/Short
ShutdownDriver1.
31 Main Open/Short
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake.
32 Coil2 Driver Open/Short
ShutdownDriver2.
32 EMBrake Open/Short
ShutdownEMBrake;
ShutdownThrottle;
FullBrake.
33 Coil3 Driver Open/Short
ShutdownDriver3.
34 Coil4 Driver Open/Short
ShutdownDriver4.
35 PD Open/Short
ShutdownPD.
36 Encoder Fault
ShutdownEMBrake;
Motor disabled.
36 Sin/Cos Sensor Fault
ShutdownEMBrake;
Motor disabled.
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POSSIBLE CAUSE
1. Motor temperature is at or above the
programmed Temperature Hot setting,
and the current is being cut back.
2. Motor Temperature Control Menu
parameters are mis-tuned.
3. See Monitor menu » Motor: Temperature
and » Inputs: Analog2.
4. If the application doesn't use a motor
thermistor, Temp Compensation and Temp
Cutback should be programmed Off.
1. Motor thermistor is not connected
properly.
2. If the application doesn't use a motor
thermistor, Motor Temp Sensor Enable
should be programmed Off.
3. See Monitor menu » Motor: Temperature
and » Inputs: Analog2.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
1. Motor encoder failure.
2. Bad crimps or faulty wiring.
3. See Monitor menu » Motor: Motor RPM.
1. Sin/Cos sensor failure.
2. Bad crimps or faulty wiring.
3. See Monitor menu » Motor: Motor RPM.
SET / CLEAR CONDITIONS
Set: Motor temperature is at or above the
Temperature Hot parameter setting.
Clear: Bring the motor temperature within range.
Set: Motor thermistor input (pin 8) is at the voltage
rail (0 V or 10 V).
Clear: Bring the motor thermistor input voltage
within range.
Set: Driver 1 (pin 6) is either open or shorted. This
fault can be set only when Main Enable = Off.
Clear: Correct open or short, and cycle driver.
Set: Main contactor driver (pin 6) is either open
or shorted. This fault can be set only when Main
Enable = On.
Clear: Correct open or short, and cycle driver
Set: Driver 2 (pin 5) is either open or shorted. This
fault can be set only when EM Brake Type = 0.
Clear: Correct open or short, and cycle driver.
Set: Electromagnetic brake driver (pin 5) is either
open or shorted. This fault can be set only when EM
Brake Type >0.
Clear: Correct open or short, and cycle driver.
Set: Driver 3 (pin 4) is either open or shorted.
Clear: Correct open or short, and cycle driver.
Set: Driver 4 (pin 3) is either open or shorted.
Clear: Correct open or short, and cycle driver.
Set: Proportional driver (pin 2) is either open or
shorted.
Clear: Correct open or short, and cycle driver.
Set: Motor encoder phase failure detected.
Clear: Either cycle KSI, or if parameter LOS Upon
Encoder Fault= On and Interlock has been cycled,
then the Encoder Fault is cleared and Encoder LOS
fault (code 93) is set, allowing limited motor control.
Set: Greater than Sin_Cos_Fault_Threshold %
difference from expected value between two phases
seen 5 times within one second.
Clear: Cycle KSI, or VCL reset, or Entry into LOS
mode if enabled, (or entry into an ACIM auto-
characterization).
SL26/30SL