Trouble Shooting - Eurotherm 637+/D6R KD6R Product Manual

Diagnosis and trouble shooting
9.3

Trouble shooting

The following list refers to faults which can occur during operation.
Display:
Error
no motor run despite current flow
motor runs unevently
no reaction of setpoint progression, despite
torque in standstill
no current flow;
no torque despite activating the regulator
correctly
Interference symptoms with power
frequency
Motor takes up preferred positions after
activation
Motor runs up immediately after activation
although there is no setpoint
Motor reaches in idling cycle very different
speed when running to the right or to the
left
1) Display /3./ or /4./ mostly short after activating; before warning /8./
66
Explanation and remedy
motor mechanically blocked?
motor brake released?
check setpoint wiring
check grounding and shielding
too high P-amplification in the speed controller
reduce value
(with EASYRIDER
too small I-time in the speed controller?
reduce value
(with EASYRIDER
Limit switch functions
effective (BIAS)
motor cables interrupted?
Is input "I extern" (X10.19) activated
(config. menu) and not notched up?
limit switch - input
activated and not notched up?
Ground loops in setpoint or actual value wiring?
Shieldings laid on both sides?
Signal cables near high voltage cables?
Position encoder or motor cables with reversed
poles?
Resolver orFeedback- encoder incorrectly
adjusted?
Number of motor poles wrong matching?
(config. menu)
Motor cables or feedback- cables reversed?
Encoder incorrectly adjusted?
(e.g. Resolver)
Feedback-Encoder incorrectly adjusted
(e.g. Resolver)
Product-manual Model: 637+/D6R KD6R
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setting/speed controlle)

setting/speed controlle)
07-02-09-01-E-V0402.doc
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