Danfoss PVG 16 - Example 2

A Emergency stop / man present switch
B PVE Fault monitoring signals
C Neutral signal detection
D Deactivation of the hydraulic system (System Control Logic, example: PLUS+1® for signal monitoring
and triggering signal)
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.
Example 2
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
Fault monitoring for deactivation of the hydraulic system with extra fault inputs using the PVE’s with DI
(Direction Indication) function. System Control Logic, example 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.
Service Manual
PVG 16 and 32 Service Assembly/Disassembly Guide
Safety in Application
16 |
©
Danfoss | November 2017 L1104530 | AX00000133en-US0106