Bosch Rexroth VCH 08.1 Manual page 73

DOK-SUPPL*-VCH*08.1***-PR02-EN-P
Rexroth IndraControl VCH 08.1 Hand-held Terminal
Devices with red-yellow button
The VAC 30.2 connection module must be permanently supplied with voltage
(24 V) via pin 1 X1.1 or pin 1 X1.2. To ensure that the stop button is integrated,
a voltage monitoring must be provided at this point. The connected hand-held
terminal can be supplied via pin 3 X1.1 or pin 3 X1.2 with 24 V, and so the hand-
held terminal can be switched on and switched off as desired.
The time course of the connection procedure is illustrated in
course when connecting the IndraControl VCH08.1 stop circuit" on page
Fig.7-6: Time course when connecting the IndraControl VCH08.1 stop circuit
The red-yellow emergency stop button of the IndraControl VCH 08.1 device
meets the requirements of the EN ISO 13850. It must be designed as an emer‐
gency 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 IndraControl VAC 31.1 is designed for the connection of a hand-held ter‐
minal with red-yellow emergency stop button. The both channels of the emer‐
gency stop button are directly looped in the safety circuit. In order to operate
the plant without connected hand-held terminal, the VAC 31.1 is equipped with
a short-circuit connector. If the IndraControl VCH 08.1 hand-held terminal
should be disconnected from the plant, the plant must be lead to a safe state;
and after the hand-held terminal is diconnected from the plant, the short-circuit
connector must be screwed on the IndraControl VAC 31.1 connection module.
Then the plant can be put into operation again. If the IndraControl VCH 08.1
hand-held terminal should be switchd on again, also the plant must be in a safe
state, before the short-circuit connector can be removed and the hand-held
terminal can be connected to the plant.
Bosch Rexroth AG
Pin Assignments of the IndraControl VCH 08.1
71/117
fig. 7-6 "Time
71.