Examples Of Wiring Block Diagram - Danfoss PVG 32 Technical Information

Technical Information
PVG 32 Proportional Valve Group
Safety in application
14 | © Danfoss | August 2017
•
PVPE, full flow dump for the PVG 120
•
External cartridge valve connecting LS pressure to tank

Examples of wiring block diagram

Example of a typical wiring block diagram using PVEH with neutral power off switch and fault monitoring
output for hydraulic deactivation.
Emergency
stop
A
PVE 1
Neutral detection / Supply control
C
signal
≠
neutral
PVE 2
Neutral detection / Supply control
C
signal
≠
neutral
A– Emergency stop / man present switch
B– PVE Fault monitoring signals
C– Neutral signal detection.
D– Hydraulic deactivation
System Control Logic e.g. PLUS+1® for signal monitoring and triggering signal for deactivation of the
hydraulic system.
W
Warning
It is the responsibility of the equipment manufacturer that the control system incorporated in the
machine is declared as being in conformity with the relevant machine directives.
Man present
switch
1)
OFF
Delay
1)
OFF
Delay
E1
Alarm
2)
logic
Output
3) Memory
high=on
low=off
Fault detection output
PVEH
with AMP
connector
U
S
U
DC2
B
Error
PVEH
with AMP
connector
U
S
U
DC2
B
Error
E2
Hydraulic
D
deactivation
P301 318
520L0344 | BC00000038en-US0802