7
Inspection/maintenance
Notes on the BZ.. brake
Operating Instructions – CM3C63 – 100
96
7.4.1
Measuring the working air gap of the BZ.. brake
Measure the working air gap indirectly with the motion of the pressure plate while re-
leasing the brake. Depending on the motor design, the procedure varies:
•
Brake with manual brake release (→
96).
•
Brake without manual brake release (→
96).
•
Brake without manual brake release with single-cable technology or terminal box
(→
Measuring the working air gap for brakes with manual brake release
1.
WARNING!
Risk of injury!
De-energize the motor and brake and safeguard the drive against unintentional
power-up.
2. If installed, remove the forced cooling fan.
3. Connect the brake to the voltage supply.
4. Release and apply the brake electrically. Measure the motion ΔH of the pressure
plate at the studs. This motion ΔH corresponds to the working air gap.
5. If the dimension ΔH is >
0.6 mm
, the brake lining carrier or the brake must be re-
placed. The working air gap cannot be adjusted.
D
H
29295744267
Measuring the working air gap for brakes without manual brake release
1.
WARNING!
Risk of injury!
De-energize the motor and brake and safeguard the drive against unintentional
power-up.
2. If installed, remove the forced cooling fan.
3. Remove the signal connector.
26870460/EN – 05/2021
Содержание CM3C63-100
Страница 2: ...SEW EURODRIVE Driving the world ...
Страница 117: ......
Страница 118: ......
Страница 119: ......