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TQ10X User Guide
Troubleshooting Basics
When your system does not function properly (or as you expect it to operate), the
first thing that you must do is identify and isolate the problem. When you have
accomplished this, you can effectively begin to resolve the problem.
The first step is to isolate each system component and ensure that each component
functions properly when it is run independently. You may have to dismantle your
system and put it back together piece by piece to detect the problem. If you have
additional units available, you may want to exchange them with existing compo-
nents in your system to help identify the source of the problem.
Determine if the problem is mechanical, electrical, or software-related. Can you
repeat or recreate the problem? Random events may appear to be related, but they
are not necessarily contributing factors to your problem.
You may be experiencing more than one problem. You must isolate and solve one
problem at a time. Log (document) all testing and problem isolation procedures.
You may need to review and consult these notes later. This will also prevent you
from duplicating your testing efforts.
Once you have isolated a problem, take the necessary steps to resolve it. Refer to
the problem solutions contained in this chapter. If the problem persists, contact
your local technical support resource.
Diagnostic LEDs
The TQ10X Drive has five LEDs on its front panel. The following summary of
LED functions may help you isolate problems.
LED Name
Color
Function
MOTOR FAULT
Red
Indicates short circuit in motor or cabling; or,
Indicates motor overtemperature; or,
Indicates Hall miswiring, or damaged Hall
sensor; or,
Indicates foldback with fault-on-foldback wet.
DRIVE OVERTEMP
Red
Indicates drive has exceeded temperature limit
REGEN/
Green
Illuminates green during regen event;
OVERVOLTAGE
Red
Illuminates red if regen causes overvoltage
PEAK CURRENT/
Green
Illuminates green during peak current output;
IN FOLDBACK
Red
Illuminates red while drive is in foldback
POWER ON/
Green
Illuminates green when AC power is applied;
NOT ENABLED
Red
Illuminates red when AC power is applied
but drive is not enabled
Reducing Electrical Noise
For detailed information on reducing electrical noise in your system, refer to the
current Compumotor Catalog.
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