Technical data

7.3.4 X2.1: STOP Push Button
Pin Assignment
Pin Signal name
X2.1 Pin1 STOP push button 1 IN
X2.1 Pin2 STOP push button 1 OUT
X2.1 Pin3 STOP push button 2 IN
X2.1 Pin4 STOP push button 2 OUT
Fig.7-11: Pin assignment of the STOP push button X2.1
The circuit of the STOP push button may be operated with a max‐
imum of 30 V and must be protected with a 2 A safety fuse.
7.3.5 X2.2: Enabling Device
Pin Assignment
Pin Signal name
X2.2 Pin1 enabling device 1 IN
X2.2 Pin2 enabling device 1 OUT
X2.2 Pin3 enabling device 2 IN
X2.2 Pin4 enabling device 2 OUT
Fig.7-12: Enabling device X2.2
The circuit of the enabling device may only be operated with a max‐
imum of 30 V and must be protected with a 2 A safety fuse.
Examples for the Connection of the Enabling Switch
Overview
The connection examples in chapter "Connection Example with PILZ PST1
Monitoring Device" on page 48 and chapter " Connection Example with ELAN
SRB-NA-R-C.27/S1 Monitoring Device" on page 50 illustrate how to reach
safety category 3 with the hand-held terminal IndraControl VCH 08.1 and its
safety-related components. Please consider that the entire concept of the ma‐
chine must be appropriately constructed for this.
Monitoring the simultaneity by means of the monitoring device is required, oth‐
erwise an accumulation of undetected failures could occur which could result
in a loss of safety.
Example:
If, due to an error, a channel of the enabling device switches to 'enable' and
after a specific period the second channel also signals 'enable' as a result of
an error, a shutdown using the enabling switch would become impossible.
In addition, EN60204-1:1997 prescribes that the enabling device is to be con‐
nected to a stop of category 0 or 1, i.e. that the energy supply must be switched
off.
Project Planning Manual | Rexroth IndraControl VCH 08.1 Electric Drives
and Controls
| Bosch Rexroth AG 47/80
Pin Assignments of the IndraControl VCH 08.1