Danfoss PVE Series 4 User Manual

Example of fault monitoring
Similar to previous example using fault monitoring for deactivation of the hydraulic system with extra
fault inputs using the PVE’s with DI (Direction Indication) function.
Example of fault monitoring for deactivation of the hydraulic system
Neutral detection / Supply control
signal
≠
neutral
OFF
Delay
1)
Fault detection output
PVEH-DI
AMP supply
connector
PVEH-DI
AMP supply
connector
PVEH-DI
AMP connector
PVEH-DI
AMP connector
AND
high=on
low=off
Neutral detection / Supply control
signal
≠
neutral
OFF
Delay
1)
PVE 1
PVE 2
Fault detection
Delay
DI
Logic
Memory
U
S
DI-A
DI-B
2)
4)
3)
Output
Fault detection
Delay
DI
Logic
Memory
U
S
DI-A
DI-B
2)
4)
3)
Output
OR
Emergency
Stop
Man present
switch
P301 319
U
DC2
Error
U
S
DI-B
Error
DI-A
U
DC2
Error
U
S
Error
DI-A
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 equipment manufacturers responsibility to ensure that the control system incorporated in the
machine is declared as being in conformity with the relevant machine directives.
Other non-electrical modules which can be used in connection with hydraulic deactivation at different
levels.
PVG 32 – mainly used in system with fixed displacement pumps
•
PVSK, commonly used in crane application - full flow dump
•
PVPE, full flow dump for the PVG 120
Technical Information
PVE, Series 4 for PVG 32/100/120 and PVHC
Safety in application
520L0553 • Rev GD • Jan 2014 23

Danfoss PVE Series 4 Specifications

General

Brand	Danfoss
Model	PVE Series 4
Category	Controller
Language	English