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5.4
Optional brake accessories
Manual brake release (CO2) / Lockable manual release of the brake (CO3)
A locked brake can cause injury and material damage
No braking effect when the manual brake release lever is locked. The brake is then permanently
released.
Before commissioning the geared motor, ensure that the brake can be applied.
Unscrew the manual brake release lever and keep it separate from the geared motor.
The brake can be optionally equipped with a manual release. This allows the brake to
be manually released in a no-current state. The manual release is also available with a
locking mechanism. This allows a brake to be locked in the released (opened) state. This
function is only permissible when setting up systems or when carrying out maintenance
work. Before (re)commissioning, the manual brake release lever (that can be unscrewed)
should be removed and the brake should be checked to ensure that it functions perfectly.
Keep the lockable manual brake release in the released state for maintenance work.
Figure 5-2
Microswitch (CO4)
NOTICE
Microswitch
The microswitch is not a safety-related component and is not covered by the safety case.
The brake can be equipped with a microswitch to monitor its release. The microswitch can be
integrated in the circuit as an NC or NO contact.
The user must provide the electrical connection that is appropriate for the microswitch
option.
Possible application of the brake release monitoring:
The motor does not start up until the brake has been fully released. This means that the
microswitch can monitor all faults that occur, for example, when the motor does not start if
the rectifier is defective, interrupted connecting cable, defective solenoid or excessively large
air gap.
SIMOGEAR Safety-related brake
Operating Instructions, 01/2024, A5E53220852A/RS-AA
WARNING
Lockable manual brake release
Technical data
5.4 Optional brake accessories
51
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