Chapter 2. Troubleshooting
1 9
Motion Architect's Panel Module
As an alternative to the test program noted above, you can use the Panel Module in Motion
Architect. The Panel Module allows you to set up displays for the purpose of testing various
system I/O and operating parameters. For more information, refer to the Motion Architect
User Guide.
Technical Support
If you cannot solve your system problems using this documentation, contact your local
Automation Technology Center (ATC) or distributor for assistance. If you need to talk to our
in-house application engineers, please contact us at the phone/FAX/BBS numbers listed on the
inside cover of this manual. (The phone numbers are also provided when you issue the
HELP
command to the OEM-AT6400.) NOTE: The BBS contains the latest software upgrade
opportunities and late-breaking product documentation.
Common Problems & Solutions
N O T E
Some software-related causes are provided because it can sometimes
be difficult to identify a problem as either hardware or software related.
Problem
C a u s e
Solution
Communication errors.
1. Communication program looking for
card at wrong address.
2. Address conflict.
3. OEM-AT6400 card not properly
seated.
1. Select correct address for communication program.
2. See
Address Selection section below.
3. Seat board properly in slot. Apply pressure directly over area with
gold card edge fingers.
Computer will not boot
with OEM-AT6400
installed.
1. Interrupt conflict.
2. See problem:
Communication Errors.
1.a. Turn interrupt DIP switches OFF.
1.b. See
Interrupt Selection section below.
Direction is reversed.
1. Direction connections on OEM-
AT6400 card reversed.
2. Phase of step motor reversed.
1. Switch DIR+ with DIR- connection to drive.
2. Switch PHA+ with PHA- connection from drive to motor.
Distance is incorrect as
programmed.
1. Incorrect resolution setting.
2. Pulse width too narrow.
1. Set the resolution on the drive (usually set with DIP switches) to
match the OEM-AT6400's
DRES
command setting (default
DRES
setting
is 25,000 steps/rev).
2. Set pulse width to drive specifications using the
PULSE
command.
Erratic operation.
1. Electrical Noise.
2. Improper shielding.
3. Improper wiring.
1. Reduce electrical noise or move OEM-AT6400 away from noise
source.
2. Refer to the Electrical Noise portion of the Technical Reference
section in the Compumotor/Digiplan catalog.
3. Check wiring for opens, shorts, & mis-wired connections.
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