Fault
Causes
Remedy
Increased operating
temperature
Oil level in the gearbox housing too high or
too low
Check the oil level at room temperature;
correct the oil if necessary
Oil is old
Change oil
Oil is heavily contaminated
Change oil
Bearing defective
Contact customer service
Too great rotation
play on the traction
sheave
Wear in the screw wheel
Contact customer service
Bearing play increased
Contact customer service
Oil leaking from gear-
box
Radial shaft sealing rings defective
Replace radial shaft sealing rings
7.3
Possible faults on the motor
Fault
Causes
Remedy
Running noise
Bearing defective
Contact customer service
VVVF-settings wrong
Check VVVF settings
Impulse encoder defective
Replace impulse encoder
Excessive tempera-
ture / Temperature
protection trips
Motor surface covered
Remove cover from motor or mount with
more distance to motor.
Ambient temperature higher than 40
°
C
Enhance shaft ventilation
VVVF-settings wrong
Check VVVF settings
Motor will not start
Motor phases connected incorrect
Check motor connection
VVVF defective
Check VVVF
Brake does not release
See brake faults
Protective device trig-
gers
Phase interruption
Check motor connection
Winding or terminal short-circuit
Check insulation resistance
7.4
Possible faults on the operating brake
Fault
Causes
Remedy
Braking distance too
short or too long
Brake set incorrectly
Adjust brake torque
Switches for wear
monitoring send sig-
nal
Wear on the brake liners
Readjust brake
Brake does not
bleed, motor does
not start
Electro-magnet defective
Contact customer service
Brake bleeds one-
sided
Electro-magnet not connected correctly
Check motor connection
Electro-magnet defective
Contact customer service
Brake does not brake Power supply not interrupted
Check switch
Friction surfaces soiled
Change brake lever
Brake does not brake
in time
Movement of the pressing rods too slow
Replace electro-magnets
Contact customer service
The setting screw can touch the retaining
plate of the micro switch when it is worn.
Check the distance between the setting
screw for the micro switch and adjust if nec-
essary.
Brake release moni-
toring does not
switch
Micro switches defective
Replace the micro switch
Contacts dirty
Switch micro switches with a higher contact
current or change microswitches.
7.5
Possible faults on the safety brake
Possibe faults of the safety brake and their causes can be found in the appendix "Safety brake SB or
Safety brake SBE"!
2ULJLQDORSHUDWLQJLQVWUXFWLRQV
ZAS0
Faults, causes and remedies
A-TBA11_06-GB
Part.-No. 01008051-GB
23/72
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