Troubleshooting, Error codes, Troubleshooting guide – Rockwell Automation 1398-DDM-xxx USE MNL/ULTRA 200 DIG.SERVO.DR User Manual

Page 194

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Publication 1398-5.0 – October 1998

11-6

Maintenance and Troubleshooting

Troubleshooting

Two front panel indicators display the status of the drive on a
continuous basis:

The Status display indicates the operating mode of the drive (A, F,
P, etc.).

The DC Bus LED lights whenever the main AC input is
connected to line voltage.

A table of problems, potential causes, and appropriate actions to take
to resolve the problem is included below.

Error Codes

If problems persist after attempting to carefully troubleshoot the
system, please contact your local distributor for further assistance.

Table 11.1:

Troubleshooting Guide

Problem or Symptom

Error Code

Possible Cause(s)

Action/Solution

Status display not lit.

No AC power

Verify power (115/230VAC
single phase or 230 VAC
three phase) is applied to
the drive.

Blown power fuse(s)

Check for open circuits in
the AC line fuses.

DC BUS LED not lit.

No Bus power

Verify AC power is applied to
the drive
Check for open circuit break-
ers in AC line.

Blown power fuse(s)

Check fuses.

Motor jumps when first
enabled

Motor encoder wiring error

Check motor encoder wiring.
See Figure 6.36 on page 30
to verify connection of
encoder power sense sig-
nals.

Incorrect motor chosen in
personality module

Select the proper motor in
ULTRA Master.

Digital I/O not working cor-
rectly

24V power supply discon-
nected

Verify P5/P6 jumper set-
tings are correct.

+24V Fuse Blown

01

F1 Blown

The fuse on the I/O isolated
+24 VDC power supply has
tripped.

Check/replace fuse F1 if
necessary.

Check for shorts on I/O or
+24VDC output

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