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Safety-related brake mounted on a motor not intended for the purpose
It is not permitted to retrofit a safety-related brake.
The safety-related brake is mounted on a SIMOGEAR geared motor with the appropriate
version. The geared motor with safety-related brake must be ordered in this specific
version and must not be retrofitted by the user, as otherwise functional safety is not
obtained.
Functional safety without evaluating thermal motor protection
SIMOGEAR geared motors with safety-related brakes are equipped with thermal motor
protection, which must be evaluated.
The commissioning engineer must connect the temperature sensor to the converter system.
Operation without evaluating the motor temperature sensor is not permissible.
Resonance effects in operation
Resonance effects can occur on the geared motor as a result of the frequency converter or
comparable power controlling devices.
Resonance effects must be excluded.
Optimize, for example, the control parameters by appropriately filtering the current setpoint.
Siemens AG takes responsibility for compliance with functional safety specifications relating
to the supplied geared motor with safety-related brake and SINAMICS S120. The safety-
related connecting elements are sealed before delivery.
Take into account the applicable national and regional legislation, standards and regulations.
To ensure that the geared motor is not damaged:
• Do not step on the geared motor.
• Do not place any objects on the geared motor.
• Do not place the geared motor down on the fan cover.
Working on the rotary encoder and the brake
All safety-related mechanical connections for the rotary encoder or the brake are marked
with a seal (enamel dot).
Only Siemens service personnel or personnel trained and authorized by Siemens are
permitted to carry out the work.
SIMOGEAR Safety-related brake
Operating Instructions, 01/2024, A5E53220852A/RS-AA
WARNING
WARNING
WARNING
Ensuring functional safety
4.2 General information
29
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