Instal
la
tion
and
Op
er
at
ing M
a
nu
al
/
Ver
si
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n 1.
5/
91800271810, Protection
Class
EN / Pr
ot
ectio
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Class
0: Off
en
(p
u
b
lic
)/ 2
0
14
-09-
03
33
WSR-D80112-S
Operation
7.2 Normal
operation
During normal operation, the way valve is operated with an external position setpoint.
If the way valve does not work as expected, normal operation is interrupted. To
remedy the malfunction, perform a troubleshooting analysis.
7.3 Troubleshooting
NOTICE
Prior to starting the work, make sure that the way valve was installed
electrically and hydraulically according to the information provided in Chapter
5 and properly commissioned according to the information provided in
Chapter 6.
Malfunction
Possible cause(s)
Remedial action
The piston rod
shows temporary
stroke variations.
Air pockets and/or lack
of damping
De-aerate the way valve as per Chapter 6.1.
The piston rod
shows periodical
stroke variations
Precondition:
Disconnect external setpoint and connect
setpoint source directly to the way valve.
Electrical fault on the
connecting cable and/or
vibration of the master
controller
Establish precondition and enter a constant
setpoint. If a stroke variation does no longer
occur, check the connecting line and/or the
master controller for malfunctions and/or defects
and eliminate same, if necessary.
Proportional gain set
too high
Establish precondition and realize setpoint step-
changes. If this causes periodic stroke
variations, readjust the gain. See Chapter 6.2.3.
There is mechanical
friction in the slide
valve.
Establish precondition. Enter setpoint w = 8 mm
for t = 30 sec. Then increase the setpoint in one
step to 8.5 mA and keep it constant for 30 sec. If
the stroke varies in one of the two phases,
ingress of dirt into the slide valve may be the
cause. Open slide valve and clean interior parts.
In case of damage to the control edges and
surfaces, completely replace the way valve.
Piston rod shows
sporadic stroke
variations
Connecting fault and/or
defective electric lines
Connect setpoint source directly to the way
valve. If this remedies the malfunction, check the
electric line.
Summary of Contents for 22000106810
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