Troubleshooting - KEB COMBISTOP 38 Instruction Manual

Malfunctions
6.2

Troubleshooting

Malfunction
brake does not
release
no braking
function
brake operates
with delay, long
connection time
micro switch
does not switch
01.09.2011 Rev. 01
Cause
incorrect voltage
rectifier failed
air gap too large, maximum
air gap reached
foreign particles between
armature and lining
magnet coil or connecting
cable defective
excessive heating
damaged teeth impede
movement of armature
friction surfaces
contaminated
brake is switched on AC
side
The setting point of the
micro switch has been
changed due to external
influences.
Note!
If further malfunctions occur, please contact the after-sales service of
Karl E. Brinkmann GmbH or return the brake to Karl E. Brinkmann
GmbH.
COMBISTOP Type 38
Measures
Only operate the brake with the
correct voltage (see type plate of
the brake).
Replace the rectifier.
Replace the lining.
Remove the foreign particles. Use
non-greasing cleaning agents to
clean the brake.
Replace the brake.
Install a high-speed circuit
breaker (for example, KEB
Powerbox).
Replace the lining and the hub.
Clean the friction surfaces,
replace if necessary.
Switch the brake on DC side.
Check the micro switch and, if
necessary, readjust or replace the
micro switch. To this end, refer to
section "4.1.4 Micro Switch
(Option)".
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