WESTLOCK CONTROLS CORPORATION
280 N. MIDLAND AVE., STE. 258, SADDLE BROOK, NJ 07663 TEL: 201-794-7650 FAX: 201-794-0913
www.westlockcontrols.com
10/5/2013
TECH-477/D.W.O. 21424
Page 48 of 206
Message Meaning
Solution
Valve stuck
Problems in the
movement
detection during
calibration
Check:
Hall sensor connector and cable, especially if remote (see
Figure 5-4, connector J8)
Magnet
assembly.
o
For rotary magnets check if it is not rotated 90
degrees (see Figure 5-2 & Figure 5-3).
o
For linear magnets, check if the magnet assembly
center is matching the actuator mid position (see
Figure 5-5)
Pressure supply stability
Actuator and tubing leaks
Manifold and transducer assembly are tightly coupled to
the enclosure and there are no leaks
Check if the cable between the inner canister and the
pneumatic transducer assembly is tightly connected
Actuator/Valve assembly integrity
Try to repeat a full auto CAL
Call factory for additional support
Not possible
to set down
gain
The calibration
of the position
sensor could not
find a proper
gain to work
with the current
Hall sensor and
magnet
assembly
Check:
Hall sensor connector and cable, especially if remote (see
Figure 5-4, connector J8)
Magnet assembly is in correct position.
o
For rotary magnets check if it is not rotated 90
degrees (see Figure 5-2 & Figure 5-3).
o
For linear magnets, check if the magnet assembly
center is matching the actuator mid position (see
Figure 5-5). Check if the proper fail-down or fail-
up magnet is being used (Figure 7-1 & Figure 7-
2)
Try to repeat a full auto CAL
Try to replace the Hall sensor and/or the magnet
Remove power for at least 1 minute and retry
Remove power for at least 1 minute, perform a factory
default (see 17 - Appendix G – Procedure to Reset the
Non-Volatile Memory to Factory Settings) and retry a full
auto CAL
Call factory for additional support
Not possible
to set up
gain
