11 — DIAGNOSTICS AND TROUBLESHOOTING
Curtis 1239E-1269E Manual, os 37.0 RevA – May 2021
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pg. 148
Table 6 TROUBLESHOOTING CHART cont’d
CODE
(status#,bit)
PROGRAMMER LCD DISPLAY
EFFECT OF FAULT
POSSIBLE CAUSE SET / CLEAR CONDITIONS
91
(Status7,1)
VCL/OS Mismatch
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
ShutdownInterlock;
ShutdownDriver1;
ShutdownDriver2;
ShutdownDriver3;
ShutdownDriver4;
ShutdownPD;
FullBrake.
1. The VCL software in the controller
does not match the OS software in
the controller.
Set: VCL and OS software do not match; when
KSI cycles, a check is made to verify that they
match and a fault is issued when they do not.
Clear: Download the correct VCL and OS
software into the controller.
92
(Status7,2)
EM Brake Failed to Set
Position Hold is engaged when
Interlock = On. Follows the
Position Hold parameter settings,
including the Position Hold
Timeout Time.
1. Vehicle movement sensed after the EM
Brake has been commanded to set.
2. EM Brake will not hold the motor
from rotating.
Set: After the EM Brake was commanded to set
and time has elapsed to allow the brake to fully
engage, vehicle movement has been sensed.
Clear: 1. Activate the Throttle (EM Brake type 2).
2. Activate the Interlock (EM Brake type 1).
93
(Status7,3)
Encoder LOS (Limited
Operating Strategy)
Enter LOS control mode.
NO_ACTION, in LOS mode.
1. Limited Operating Strategy (LOS) control
mode has been activated, as a result of
either an Encoder Fault (Code 36) or a
Stall Detected fault (Code 73).
2. Motor encoder failure.
3. Bad crimps or faulty wiring.
4. Vehicle has stalled.
Set: Encoder Fault (code 36) or Stall Detected
(code 73) was activated, if parameter LOS
Upon Encoder Fault = On and Interlock has
been cycled, then the Encoder LOS (code 93)
control mode is activated, allowing limited motor
control.
Clear: Cycle KSI or, if LOS mode was activated
by the Stall Detected fault, clear by ensuring
encoder senses proper operation, Motor RPM =
0, and Throttle Command = 0.
98
(Status7,7)
Illegal Model Number
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake.
1. Model_Number variable contains illegal
value. Any value other than 1239 or
1269 is invalid for the OS version.
2. Software and hardware do not match.
3. Controller defective.
Set: Illegal Model_Number variable; when KSI
cycles, a check is made to conrm a legal
Model_Number, and a fault is issued if one is
not found.
Clear: Download the appropriate software for the
controller model (may require a newer version of
the OS, beyond this manual’s OS version).
99
(Status8,3)
Parameter Mismatch
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake.
1. Dual drive enabled on only one controller.
2. Incorrect position feedback type chosen
for motor technology in use.
3. Dual drive is enabled in torque mode.
4. Controller hardware incompatible with
PMAC operation or with the selected
PMAC motor.
5. This Control Mode does not support EM
Brake Control.
6. This Control Mode does not support
Interlock Braking.
7. Reserved
8. Controller/motor incompatibility.
PMAC motor short circuit current too
high for controller.
9. This controller not compatible with
released IPM PMAC software (no
xconnect, and not a 1239e).
10. Can’t run Restricted Operation Mode
on this motor (incomplete Motor Type).
Set: Multiple set conditions, see:
Monitor » Controller » Parameter Mismatch Error.
Clear: Adjust parameters to appropriate values
and cycle KSI.
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