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Bosch Rexroth AG
Module Design
6.2.2
Keypads
Rexroth IndraControl VAM 12.1/42.1 Machine Control Panels
The red-yellow EMERGENCY STOP button of the VAM 12.1/VAM 42.1 meets
the requirements of the EN ISO 13850. It must be designed as an emergency
stop of category 0 or category 1 (see EN 60204-1 chapter 9.2.5.4.2) on the
basis of the risk assessment for the machine. The connection of the positive-
break contacts to an appropriate monitoring system must meet the category (in
accordance with EN ISO 13849-1) which is defined by means of the risk as‐
sessment (in accordance with EN ISO 14121-1) of the machine.
The connections of the both N/C contacts ("NC") are indicated with "1" and
"2" in the following illustration. An additional N/O contact "NO" with the con‐
nector designation "3" and "4" is available. This N/O contact can e.g. be used
as signal contact for the state evaluation of the EMERGENCY STOP button via
a PLC.
Fig.6-2:
Wiring diagram: N/C contacts (NC) and N/O contacts (NO) of the EMER‐
GENCY STOP button
WARNING
The release of the EMERGENCY STOP facility must not cause any uncontrol‐
led restart of the machine!
The EMERGENCY STOP function must be tested cyclically by activating the
EMERGENCY STOP button.
Fig.6-3:
Keypads
DOK-SUPPL*-VAM*XX.1***-PR02-EN-P
Non-functioning EMERGENCY STOP devices
can have lethal consequences!
I n
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