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9 Diagnosis and Trouble-Shooting
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70 Product Manual Type: 637f 07-02-10-01-E-V0505.doc
9.3 Trouble shooting
The following list refers to faults which can occur during operation.
Display:
Error Explanation and remedy
no motor run despite current flow motor mechanically blocked?
motor brake released?
1)
motor runs unevently check setpoint wiring
check grounding and shielding
too high P-amplification in the speed controller
reduce value
(with EASYRIDER
®
setting/speed control)
too small I-time in the speed controller?
reduce value
(with EASYRIDER
®
setting/speed control)
no reaction of setpoint progression, despite
torque in standstill
Limit switch functions
effective (BIAS)
no current flow;
no torque despite activating the regulator
correctly
motor cables interrupted?
Is input "I extern" (X10.19) activated
(config. menu) and not notched up?
limit switch - input
activated and not notched up?
Interference symptoms with power
frequency
Ground loops in setpoint or actual value wiring?
Shieldings laid on both sides?
Signal cables near high voltage cables?
Motor takes up preferred positions after
activation
Position encoder or motor cables with reversed
poles?
Resolver or Feedback- encoder incorrectly
adjusted?
Number of motor poles wrong matching? (config.
menu)
1)
Motor runs up immediately after activation
although there is no setpoint
Motor cables or feedback- cables reversed?
Encoder incorrectly adjusted?
(e.g. Resolver)
1)
Motor reaches in idling cycle very different
speed when running to the right or to the left
Feedback-Encoder incorrectly adjusted
(e.g. Resolver)
1) Display
or
mostly short after activating; before warning