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Procedure
Checking the air gap
1. Remove the fan cover
For the combination with manual brake release:
Unscrew the manual brake release lever
For separately driven fans
Remove the fan cover with separately driven fan
2. Using a feeler gauge, measure the air gap s
vicinity of the fixing screws.
3. Compare the measured air gap with the value for the maximum permissible air gap s
values are listed in Chapter Adjust the air gap (Page 41).
You have now checked the air gap.
For versions with safety-related rotary encoder, limit values other than for the encoderless
version apply.
Testing the function
1. Check the function of the brake with the drive running. The armature disk must be pulled-in,
and the rotor must move freely without any residual torque.
2. Measure the DC voltage at the brake. Compare the measured DC voltage with the voltage
stamped on the nameplate. Deviations of up to 10 % are permissible.
You have now checked the brake function.
4.8.6
Adjust the air gap
Unintentional starting of the drive unit
Switch off the power supply to the drive unit so that it is in a no-voltage condition.
The brake must be in a torque-free condition.
Secure the drive unit to prevent it from being started up unintentionally.
Attach a warning notice to the start switch.
SIMOGEAR Safety-related brake
Operating Instructions, 01/2024, A5E53220852A/RS-AA
WARNING
Ensuring functional safety
4.8 Service and maintenance
between the armature disk and solenoid in the
L
. The
Lmax
41
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