Rockwell Automation 1398-DDM-xxx USE MNL/ULTRA 200 DIG.SERVO.DR - Manual (Page 195)

Publication 1398-5.0 – October 1998
Maintenance and Troubleshooting 11-7
+5V Fuse Blown 02 F2 Blown The fuse on the encoder
power output for the +5 VDC
power supply has tripped.
Check/replace fuse F2 if
necessary.
Check for shorts on Encoder
output signals or +5V output.
Check that J4 pin 9 or J5 pin
9 is not connected to an
external circuit.
Encoder Fuse Blown 03 F3 blown Check for shorts on motor
Encoder signals and cable
wiring.
Check/replace fuse F3 if
necessary.
Bad encoder Replace encoder and or
motor.
Motor Overtemperature 04 Motor TS+ (J2-19) and TS-
(J2-20) pins open Verify TS+ (J2-19) and TS-
(J2-20) connections for con-
tinuity.
Motor thermostat trips due
to:
High motor ambient temper-
ature, and/or
Excessive RMS torque Lower ambient tempera-
ture. Operate within (not
above) the continuous
torque rating for the ambi-
ent temperature (40°C maxi-
mum).
IPM Fault 05 Motor cables shorted Verify continuity of motor
power cable and connector.
Motor winding shorted inter-
nally Check for short on motor’s
R,S,T and Gnd windings.
Drive temperature too high Check for clogged or defec-
tive fan.
Ensure cooling is not
restricted by insufficient
space around the unit.
Operation above continu-
ous power rating Verify ambient temperature
is not too high
(above 60° C).
Operate within the continu-
ous power rating.
Output short circuit or over-
current Drive has a bad IPM,
replace drive.
Channel IM line 06 Bad connections Verify continuity of the
encoder cable.
Verify continuity of the IM+
and IM- wiring signals.
Bad Encoder Replace the motor or the
encoder.
Table 11.1: Troubleshooting Guide (continued)
Problem or Symptom Error Code Possible Cause(s) Action/Solution