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9.2.2 Troubleshooting for the Servo System
9.2.2.1 LCP Display is Dark/Not Functioning
This fault applies to the ISD 510/DSD 510 servo drives, PSM 510, DAM 510, and ACM 510.
Possible Causes
Missing input power.
Missing or open fuses or circuit breaker tripped.
No power to the LCP.
Incorrect contrast setting.
Display is defective.
Troubleshooting
Table 40: Fault, LCP Display is Dark/Not Functioning
Possible cause
Possible solution
Missing input power.
Check the input power source.
Missing or open fuses or circuit breaker tripped.
Check the fuses and circuit breaker.
No power to the LCP.
Check the LCP cable for proper connection or damage.
Replace any faulty LCP or connection cables.
Incorrect contrast setting.
Press [Status] + [
▵
]/[
▿
] to adjust the contrast.
Display is defective.
Replace the faulty LCP or connection cable.
9.2.2.2 Open Power Fuses or Circuit Breaker Trip
This fault applies to the PSM 510 and DAM 510.
Possible Causes
Phase-to-phase short.
Short on backlink.
Short on hybrid cable.
Short on EXM 510 connector or cable.
Short on ISD 510/DSD 510 connector.
Troubleshooting
Check the cabling
Check for loose connections.
9.2.2.3 DC-link Voltage Too Low (Error 0x3220/0x104)
This fault applies to all system modules.
Possible Cause
Incorrect mains input supply.
Troubleshooting
Check that the supply voltage matches the allowed specification.
9.2.2.4 Current Overload Trip (Error 0x2396/0x15C)
This fault applies to the PSM 510 and the DAM 510.
AQ262449648484en-000101 / 175R1135
158 | Danfoss A/S © 2020.08
Diagnostics
VLT® Servo Drive System ISD 510/DSD 510
Operating Guide