Appendix b, Troubleshooting – Lenze SS208AC User Manual
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SimpleServo 100/200 User Manual Rev 3.4
Appendix B
TROUBLESHOOTING
WARNING!
Hazard of electrical shock! Circuit potentials are at 115 VAC or 230 VAC above earth
ground. Avoid direct contact with the printed circuit board or with circuit elements to
prevent the risk of serious injury or fatality. Disconnect incoming power and wait 60
seconds before servicing drive. Capacitors retain charge after power is removed.
Before troubleshooting
•
Perform the following steps before starting any procedure in this section:
•
Disconnect AC or DC voltage input from the SimpleServo. Wait 3 minutes for power to discharge.
•
Check the SimpleServo closely for damaged components.
•
Check that no foreign material has become lodged on, or fallen into, the SimpleServo.
•
Verify that every connection is correct and in good condition.
•
Verify that there are no short circuits or grounded connections.
•
Check that the drive's rated phase current and RMS voltage are consistent with the motor ratings.
For additional assistance, contact your local SimpleServo® authorized distributor.
PROBLEM
External line fuse blows
POSSIBLE CAUSE
•
Line fuses are the wrong size.
•
Motor leads or incoming power leads are shorted to ground.
•
Nuisance tripping caused by EMI noise spikes caused by poor grounding and/or shielding.
POSSIBLE CAUSE
•
Check that line fuses are properly sized for the motor being used.
•
Check motor cable and incoming power for shorts.
•
Check that you followed recommendations for proper shielding and grounding listed in section
"shielding and grounding" earlier in this manual.
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