35
TrOUbLESHOOTING
8 Troubleshooting
The following table shows some causes and solutions of malfunctions during brake op-
eration. If this does not solve the problem or if other malfunctions occur, please contact
our service department.
Malfunction
Cause
Measures
Brake does not
release
incorrect voltage
Only operate the brake with the
correct voltage (see type plate of
the brake).
Rectifier failed
Replace the rectifier.
Air gap too large, maxi-
mum air gap reached
Replace wearing parts.
Foreign particles between
armature and lining
Remove the foreign particles.
Use non-greasing cleaning
agents to clean the brake.
Magnet coil or connecting
cable defective
Replace the brake.
excessive heating
Install a high-speed circuit
breaker (for example, KEB Pow-
erbox).
no braking function
Damaged teeth impede
movement of armature
Replace the lining and the hub.
Friction surfaces contam-
inated
Clean the friction surfaces, re-
place if necessary.
Brake operates with
delay, long connec-
tion time
Brake is switched on AC
side
Switch the brake on DC side.
Содержание COMBISTOP 28
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