11 — DIAGNOSTICS AND TROUBLESHOOTING
Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE/38SE Manual, os 31 – May 2017 Return to TOC
pg. 134
CODE
PROGRAMMER LCD DISPLAY
EFFECT OF FAULT
POSSIBLE CAUSE SET / CLEAR CONDITIONS
28 Motor Temp Hot Cutback
Reduced drive torque.
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.
Set: Motor temperature is at or above the
Temperature Hot parameter setting.
Clear: Bring the motor temperature within range.
29 Motor Temp Sensor Fault
MaxSpeed reduced (LOS, Limited
Operating Strategy), and motor
temperature cutback disabled.
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.
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.
31 Coil1 Driver Open/Short
ShutdownDriver1.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
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.
31 Main Open/Short
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
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
32 Coil2 Driver Open/Short
ShutdownDriver2.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
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.
32 EMBrake Open/Short
ShutdownEMBrake;
ShutdownThrottle;
FullBrake.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
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.
33 Coil3 Driver Open/Short
ShutdownDriver3.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
Set: Driver 3 (pin 4) is either open or shorted.
Clear: Correct open or short, and cycle driver.
34 Coil4 Driver Open/Short
ShutdownDriver4.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
Set: Driver 4 (pin 3) is either open or shorted.
Clear: Correct open or short, and cycle driver.
35 PD Open/Short
ShutdownPD.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
Set: Proportional driver (pin 2) is either open or
shorted.
Clear: Correct open or short, and cycle driver.
36 Encoder Fault
ShutdownEMBrake;
Motor disabled.
1. Motor encoder failure.
2. Bad crimps or faulty wiring.
3. See Monitor menu » Motor: Motor RPM.
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.
36 Sin/Cos Sensor Fault
ShutdownEMBrake;
Motor disabled.
1. Sin/Cos sensor failure.
2. Bad crimps or faulty wiring.
3. See Monitor menu » Motor: Motor RPM.
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).
Table 6 TROUBLESHOOTING CHART cont’d
To Next Page
Loading...
