INTORQ BFK458 Originalbetriebsanleitung Seite 149

Troubleshooting and fault elimination
Fault
Brake cannot be re-
leased, air gap is not
zero
Rotor cannot rotate
freely
Rotor thickness too
small
Voltage too high
Voltage too low
AC voltage is not
mains voltage
INTORQ | BA 14.0168 | 08/2019
Cause
Incorrect micro-switch wiring Check the wiring of the micro-switch and correct it.
Micro-switch incorrectly set
Air gap s is too large
L
Wrong setting of hand-re-
lease
Air gap s is too small
L
Rotor has not been replaced
in time
Brake voltage does not
match the rectifier
Brake voltage does not
match the rectifier
Defective rectifier diode
Fuse is missing or defective Select a connection with proper fusing.
Remedy
Replace the complete stator and make a complaint about the
setting of the micro-switch to the manufacturer.
Adjust the air gap (refer to Adjusting the air gap, Page 66).
Check the dimensions s
LN
dimensions must be the same on both sides. Correct if required.
(Refer to Installing the hand-release (retrofitting), Page 48.)
Check air gap s and adjust if necessary (refer to Adjusting the
L
air gap, Page 66).
Replace the rotor (refer to Replace rotor, Page 66).
Adjust rectifier and brake voltage to each other.
Adjust rectifier and brake voltage to each other.
Replace the defective rectifier with a suitable undamaged one.
+ s with the brake energised. The
HL
72