Troubleshooting Guide
15
5.0 Troubleshooting Guide
Dangerous high voltages exist in the TD330 drive products. Be certain the power has been
removed for 5 minutes before any service work is performed.
Symptom: Power LED does not come on
1.
Verify that the AC power to the unit is between 95 and 264 Vac.
2.
Ensure there are no short circuits or heavy electrical loads on the +5 Vdc or +24 Vdc supplies.
3.
Check for blown input fuses. Replace with same value and type listed.
In order to provide the correct levels of protection in the unit, replacement fuses must be
the same exact style and ratings as the originals in the unit. If a fuse has been blown,
return the unit to the Factory for repair.
Symptom: Over current LED on
1.
Power down the unit until the power and over current LED’s go out. Power the unit back up and see
if fault goes away.
2.
Check the motor wiring for short circuits to ground or phase to phase.
3.
Verify the motor selected is one that is compatible with the drive.
4.
Verify the current setting on the drive matches that of the motor’s specification.
Symptom: Over temperature LED on
1.
Power down the unit until the power and over temperature LED’s go out. Power the unit back up and
see if the fault goes away;
2.
Check the ambient temperature to be sure it is less than 50
°
C (122
°
F). If the ambient temperature
is greater;
3.
Check heat sink temperature to be sure it is less than 70
°
C (158
°
F).
Temperature of the heatsink or the unit could be hot to the touch. Caution should be used
when determining the temperature.
Symptom: Both the Over current and Over temperature LED’s are on
1.
Power down the unit until the power and over temperature LED’s go out. Power the unit back up and
see if fault goes away.
2.
If there is an external regenerative resistor:
a. Insure that it is connected and connected properly.
b. That the values for the wattage and the resistance are correct for the unit.
3.
If there is no external regenerative resistor, one may be necessary.
4.
Verify that the input voltage is between 95 and 264 VAC.
!
Caution
!
Caution
Warning
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