User's Manual

33
Red LED (FAULT) lights:
• Operational voltage too high (8V ±0.4 at MP4).
• Braking energy too high (8V ±0.4 at MP4).
• The thermal switch reacted, as the heat sink temperature is >80º (7V ±0.4 at MP4).
• Short-circuit in the motor or ground contact of a motor line (9V ±0.4 at MP4).
Uncontrolled high motor speed:
• Wrong polarity of the resolver or wrongly adjusted.
• Wrong polarity of the motor.
Motor does not reach the desired speed:
• Speed reference values attenuated too strong by P1.
• Operational voltage too low.
• Driven load set too high or current limiting set too low.
No smooth running of the motor:
• Alternating current amplification too high.
• Insufficient resolver line shielding or shield connected wrongly.
• Interference by wrong input wiring.
Yellow LED (BALLAST) permanently lights:
• Power supply too high.
Motor heats up strongly in idle operation:
• A motor with a high internal resistance is used (see 5.1).