Rockwell Automation Allen-Bradley IMPACT 1336 Series

2–4 Troubleshooting and Error Codes
Publication 1336 IMPACT-6.8 – November, 2002
The fault codes are defined as shown in Table 2.A.
Table 2.A
Fault Descriptions
Fault Code and
Text
LED Status
Fault
Type
Description Suggested Action
01027
Autotune Diag
VP, Flashing red Soft
The drive encountered a problem while
running the autotune tests.
When this condition occurs, the drive
coasts to a stop regardless of the
selected stop type.
Check Autotune Errors (parameter 176). For
additional information about Autotune Errors,
refer to Chapter 13, Understanding the
Autotuning Procedure, in the user manual.
01051
MtrOvrld Pnd
VP, Flashing red Soft
A motor overload is pending. The drive
has reached 95% of the level required
for a motor overload trip (see fault
01052).
Check for possible motor overheating.
•If the motor temperature is excessive, reduce
the accel/decel times (parameters 42–45) or
reduce the load.
•If the motor temperature is acceptable,
increase the value of Motor Overload %
(parameter 26).
If you do not want this condition to be reported
as a fault, change bit 3 in Fault Select 2
(parameter 22) to 0.
01052
MtrOvrld Trp
VP, Flashing red Soft
Motor overload tripped. The drive has
reached the level of accumulated motor
current over time as set by Motor
Overload % (parameter 26).
Check for possible motor overheating.
•If the motor temperature is excessive, reduce
the accel/decel times (parameters 42–45) or
reduce the load.
•If the motor temperature is acceptable,
increase the value of Motor Overload %
(parameter 26).
If you do not want this condition to be reported
as a fault, change bit 4 in Fault Select 2
(parameter 22) to 0.
01053
Mtr Stall
VP, Flashing red Soft
The drive is in a limit condition for a
period of time in excess of the value
specified in Motor Stall Time (parameter
25) with the motor at zero speed.
Check Torque Limit Sts (parameter 87) to see
which limit has occurred. Increase the
appropriate limit parameter or reduce the load.
If you do not want this condition to be reported
as a fault, change bit 5 in Fault Select 2
(parameter 22) to 0.
01083
MtrOvrld Pend
VP, Flashing green Warning
Motor overload pending. The drive has
reached 95% of the level required for a
motor overload trip (see fault 01084).
Check for possible motor overheating.
•If the motor temperature is excessive, reduce
the accel/decel times (parameters 42–45) or
reduce the load.
•If the motor temperature is acceptable,
increase the value of Motor Overload %
(parameter 26).
If you do not want this condition to be reported
as a warning, change bit 3 in Warning Select 2
(parameter 23) to 0.