Danfoss PVG 32 Service Manual page 41
Proportional valve group
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Also See for PVG 32:
- Technical information (76 pages) ,
- Service manual (15 pages) ,
- Application manual (13 pages)
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Service Manual
PVG 32 Proportional Valve Group
PVG 32 Component Troubleshooting
©
Danfoss | February 2017
PVEP
Connector
Pin 1
1x6 DEU
PWM_A
PVED-CC
Connector
2x4 AMP (A/B)
2x4 DEU (A/B)
PVE Series 5 Connectors
PVED-CC
Connector
2x4 AMP (A/B)
2x4 DEU (A/B)
Connector diagrams
1x4 DEU
2
3
1
4
1x4 AMP
1
2
3
4
2418
Pin 2
Pin 3
Error
PWM_B
Pin 1
Pin 2
CAN_L
Udc
CAN_H
CAN_L
Pin 1
Pin 2
CAN_L
Udc
CAN_H
CAN_L
1x6 DEU
A
3 4
2
5
1
6
B
1x6 AMP
4
3
5
2
6
1
Pin 4
Pin 5
Udc
GND
Pin 3
Pin 4
GND
CAN_H
Udc
GND
Pin 3
Pin 4
GND
CAN_H
Udc
GND
2x4 DEU
2
3
1
4
1x4 DIN
3
2
1
4
2
2x4 AMP
1
2
3
4
11039167 | AX00000031en-US0301 | 41
Pin 6
3
1
4
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Table of Contents
Troubleshooting
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Do you have a question about the PVG 32 and is the answer not in the manual?
Questions and answers
После нескольких поворотов катка гидравлика уходит в аварию при перезагрузке снова срабатывает несколько раз и останавливается в аварии.
The Danfoss PVG 32 hydraulic system could go into fault mode after several turns of the roller due to the following possible causes:
1. Contamination in Hydraulic Oil – Dirt or debris in the oil can affect valve operation.
*Check*: Take an oil sample.
*Corrective Action*: Flush the system and refill with clean, filtered fluid per OEM specifications.
2. Air in Hydraulic Pilot Lines – Air trapped in the signal lines can cause unstable operation.
*Check*: Inspect for air in the signal lines.
*Corrective Action*: Bleed air from the hose connection at the valve section.
3. Low Hydraulic Oil Supply – Insufficient oil can cause pressure drops and improper function.
*Check*: Verify fluid level in the reservoir.
*Corrective Action*: Refill with clean, filtered fluid per OEM specifications.
4. Faulty Hydraulic Remote Actuator – A malfunctioning actuator can lead to inconsistent valve response.
*Check*: Measure signal pressure from the remote hydraulic controller.
*Corrective Action*: Repair or replace the actuator.
5. External Hydraulic Pilot Pressure Too Low – If pressure is too low, the main spool may not function properly.
*Check*: Measure external pilot pressure from the pilot pump and check for restrictions.
*Corrective Action*: Ensure the pilot pressure meets the required specifications.
6. Leaking or Burst Supply Hose – A damaged hose can lead to pressure loss and system faults.
*Check*: Inspect supply lines to the valve stack.
*Corrective Action*: Repair or replace damaged hoses.
These potential causes should be systematically checked and corrected to restore proper system operation.
This answer is automatically generated