Danfoss PVG 32 Service Manual

Cause Check Corrective action
Incorrect signal voltage Check voltage levels at solenoid plug
Proportional operation - Refer to Troubleshooting Considerations
Udc: Supply voltage (100%)
Us: Supply signal voltage (25-50-75%)
Ground: Live or ground connection
On-Off Operation
Udc: Supply voltage if selected
Us: Supply voltage if selected
Ground: Live or ground connection
Solenoid valve faulty PVHC Check coil resistance Check data for resistance
Insufficient pilot supply Check pilot pressure - 10-15 bar [145-218 psi]/PVHC 25 bar [360
psi]
Replace
Main spool position feedback
transducer signal incorrect
Test oil for contamination and or water content If oil contamination is too high, flush hydraulic
system or replace oil if necessary. If problem
persists change PVE
Incorrect PVE connections Check that the proportional remote electrical controller has not
been connected to an ON-OFF PVEO solenoid
Connect wires correctly
Hydraulic (remote) pilot control pressure
Cause Check Corrective action
Insufficient pilot pressure Check pilot oil pressure 5-15 bar [72-220 psi] delta between A and
B port on remote
PVG32: 5-15 Bar [72-217 PSI]
Insufficient pilot oil supply Check pilot oil flow rate is adequate
Pilot flow should be 1.0 L/min [0.264 GPM] per section
Check pilot lines for blockage Remove blockage
Air in pilot line Check for trapped air in pilot lines Bleed air from pilot lines at PVH
Pilot lines incorrectly sized Check pressure drop Check and reduce length or pilot lines
Increase diameter of pilot lines
Use steel tube for long pilot line runs
Hydraulic remote pilot operator
faulty
Check operation of hydraulic remote pilot controller Repair or replace
Check supply pressure to hydraulic remote controller - minimum
25 bar [360 psi]
Repair or replace
Check and inspect movement of pressure control valve in
hydraulic controller
Repair per manufacturers procedure, or
replace
Check operation of remote hydraulic controller Clean and/or repair as necessary
Service Manual
PVG 32 Proportional Valve Group
System Troubleshooting
©
Danfoss | February 2017 11039167 | AX00000031en-US0301 | 19

Danfoss PVG 32 Specifications

General

Brand	Danfoss
Model	PVG 32
Category	Control Unit
Language	English