Baumuller BM5-O-SAF-002, Operation Manual, Page: 33 / 182

Description of the Safety Module
Operation Manual Safety Module for b maXX 5000 BM5-O-SAF-002/3
Document no.: 5.11016.03
33
of 180
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The functional principle of the modules SAF-002 and SAF-003 is shown in
Z
Figure 2
–
on
page 33. Monitoring- and safety function can be enabled directly via the wired safety
components at the Safety Module as well as via connected safety components via a
safety-oriented field bus.
The field bus communication always is made via the basic device. The Safety Modules
have two power outputs, which can be used to activate safety-related brakes. In order to
operate functional accesses of the controller on the brake, the safe brake supply is led
from the Safety Module over the controller.
Figure 2: Operating mode
The encoder signals of the used rotary encoders from the controller’s signal paths are
decoupled and are provided for the parallel evaluation to the Safety Module for the motion
detection of the input end.
The requirement for the rotary encoder is described in chapter
Z
Requirements for the use
of rotary encoders for the safety-related monitoring
–
on page 34.
If a required safety function is enabled, e.g. by a fault of the monitored limit in the Safety
Module, a switch-off of the driver supply is enabled via the interfaces of the safe pulse
inhibit. This is required for the control of the semiconductors, which are in the output
stage. The drive now is in the status Safe Torque Off.
WARNING!
There are safety notes and risks referring to the safety function STO in chapter
Z
Safety notes for the Function STO (Safe Torque Off)
–
on page 58, which must be
considered.