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A4... with HS5E(V)(L) control system Series 1x and 30
| Installation
Bosch Rexroth AG, RE 92076-01-B/2021-04-22
7.6.7 Voltage supply of the HS5E pilot control valve
The HS5E pilot control valve is supplied with 24 V DC. If this system-side voltage
supply is not present, you can use the VT-NE30-2X/ power supply unit according to
RE 29929. You connect the 24 V of the power supply unit to connections 1 (+24 V)
and 2 (L0) of the plug-in connector.
With the available connection cable, this corresponds to the two black wires of the
1 mm² cross-section 3-pole cable. In this context, you must connect the wire labeled
"1" to +24 V and the one labeled "2" to L0 (Ground). The yellow/green wire must be
connected to ground.
Fig. 21: Connecting the voltage supply of the HS5E pilot control valve
Recommendation:
On the system-side, the voltage supply of the HS5E pilot control valve should be
fuse-protected using a 4 A slow-blow fuse
The HS5E pilot control valve does not have an enable input to block the function
of the valve.
In the event of a fault, the drive enable should be canceled via fieldbus. All
other safety-relevant intervention must be carried out by the higher-level control
(e.g. drive motor OFF, close isolator valves, etc.)
Mating connector
on valve VT-DFPD
Connection cable for
voltage supply
Connection cable for signals
Green/yellow
=
Black (2)
= pin 2
Ground
connection
0 V
+24 V
Black (1)
= pin 1