Measures And Requirements For Unshielded Module Voltage Supply; Connecting Module To Safety Control Devices; General Structure Of A Potential Group - Bosch Rexroth IndraControl S67 Series Application Description

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Using Feedback-Free Module in Safety Applications
12.5 Measures and Requirements for Unshielded Module Voltage
Supply
12.6

Connecting Module to Safety Control Devices

12.6.1

General Structure of a Potential Group

Rexroth IndraControl S67 Digital Module 8 Outputs – 2.0 A (4×M12)
Fuse
U LS
Insulation
24 V
monitor
U A
FE
Fig. 12-2: Connection diagram for common voltage supply with insulation moni‐
toring
Fuse
U LS
24 V
Fuse
U A
24 V
FE
Fig. 12-3: Connection diagram for isolated voltage supply
NOTICE
When using unshielded connection lines for the supply of feedback-free mod‐
ules, it is required to wire the connection lines in a cable channel, an armored
conduit or a protected installation space acc. to EN 60204-1 or EN ISO
13849-2. The measures have to ensure that no errors (short circuit between
any conductors) can occur acc. to EN 60204-1 or EN ISO 13849-2. The error
exclusion has to apply to the voltage supplies U
(e.g. U ). Also check the wiring in the exit area of the protection measure
LS
(e.g. exit area of the armored conduit/cable channel).
When using feedback-free modules in safety applications, the feedback-free
modules of the safety control device have to be grouped in a potential group.
The voltage supply U of the feedback-free module can only be connected to
A
the digital output of an appropriate safety control device (24 V).
DOK-CONTRL-S67DO8M122A-AP03-EN-P
Safety relay
Safety relay
Measures when using connection lines with‐
out shielding!
and the external voltages
A
U LS
Module
IndraControl S67
U A
U LS
Module
IndraControl S67
U A
FE