Principle of PVEH
2
1
0
Pp
Micro-
controller
Power
Supply
US
Special
Features
SP
NP
Uf
DI_B
DI_A
Udc
2
LED
Error
Udc
NC1
NC3
NO4
NO2
LVDT
P109148
Principle of PVES
2
1
0
Pp
Micro-
controller
Power
Supply
Special
Features
SP
LED
Error
Us
Udc
NC1
NC3
NO2
NO4
LVDT
P109149
Troubleshooting actuator
For warranty claims please verify and describe below points before replacing actuator.
•
Function of external parts
‒
Spool can move as expected when activated by PVM
‒
Pilot pressure is available
‒
Control signal can activate other PVE/PVHC
‒
Cabling is undamaged
‒
Connectors are with sealing and dry
•
Function of PVE
‒
Failure is temporary/continues
‒
Failure is in one direction (A or B) or both
‒
Visible damage
Service Manual
PVE Series 7
General Information
©
Danfoss | August 2017
AX00000348en-US | 0101 | 13
