Table of Contents
Advertisement
100/104
A4... with HS5E(V)(L) control system Series 1x and 30 | Troubleshooting
Table 28: Malfunction table of HS5E control systems
Malfunction
Drive motor shuts down due to
overloading
Hydraulic fluid temperature too
high
Setting of swivel angle sensor
causes problems
The connection to IndraWorks
has failed; the row on the
display is red.
Bosch Rexroth AG, RE 92076-01-B/2021-04-22
Possible cause
Excessive power consumption of the pump
Overcurrent protection of motor does not work
properly
Piston is stuck in the HS5E pilot control valve
Diagnosis: Compare actual value and valve
command value in IndraWorks
Actual swivel angle value acquisition maladjusted
or not functioning properly
Valve electronics defective
Too high inlet temperature at control system
DB in preload valve opens
Diagnosis: Pipe to the reservoir heats up
Malfunction of the pressure control valves
(e.g. high-pressure relief valve, pressure cut-off,
pressure controller)
Control system worn out
Input error
14.3.1 Swivel angle measurement check
The settings for swivel angle measurement are made at the factory. After you
have replaced the swivel angle sensor, you must carry out calibration; see chapter
8.1.8 "Calibrating the HS5E(V)(L) control system" on page 80. Bosch Rexroth
recommend repeating calibration or checking it at certain intervals.
Remedy
Reduce torque limit
Reduce swivel angle command value
Check actual pressure value acquisition
Check setting and function
Replace the HS5E pilot control valve,
see chapter 10.5.1 on page 87
Swivel angle measurement check
Replace the HS5E pilot control valve,
see chapter 10.5.1 on page 87
Inspect system, e.g. malfunction in the
cooler, insufficient hydraulic fluid in the
reservoir
Pressure must be lower than the cracking
pressure of the preload valve. Keep
overshoots and pressure pulsation to
a minimum
Contact Rexroth Service
Replace the control system, contact Rexroth
Service
For more information on this topic, refer to
chapter 8.1.5.4
Use 192.168.0.1 as the correct IP address
Advertisement
Table of Contents
