Baumuller BM5-O-SAF-002, Operation Manual, Page: 58 / 182

NOTE!
If STO is activated, then a motor holding brake attached to the motor is activated, as
well.
Safe Torque Off (STO)
Operation Manual Safety Module for b maXX 5000 BM5-O-SAF-002/3
Document no.: 5.11016.03 Baumüller Nürnberg GmbH
58
of 180
10.3
10.3.2 Safety notes for the Function STO (Safe Torque Off)
WARNING!
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In the status STO the drive is not disconnected from the energy supply.
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If drives have a permanent torque, as e.g. at suspended loads, then the safety
function is not sufficient.
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The function STO is also active at error detection as well as at the fail of voltage
supply. This can cause safety limits in dependence of the application. Therefore,
in this case, additional actions must be made, as e.g. installing an appropriate
holding brake.
DANGER!
Danger due to moving parts!
An immediate driver stage supply is caused by the input supply due to a connected
safety element (emergency-stop device, safety-light grid). A fail of the controller can
cause an unexpected start-up. Avoid an unexpected start-up during commissioning,
by providing for external safety components.
Therefore:
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Remain at a safe distance from the moving machine parts / installation parts or
from the moving machine / installation.