5/12/2017
TECH-538/D.W.O. 23160
Page 172 of 189
Message
Meaning
Solution
PID gain
error
PID calibration
was not able to
find proper gain
values and
control the
valve position
Check:
The position sensor (Hall-effect sensor) connector and cable. .
See Figure 5-1 and find the connector J6 for local or remote
sensor connection for the ICoT 5400. See
Figure 6-3 and find the connectors J3 and J4 for remote
sensor connection for the ICoT 6400. The connector J2 is
used for local sensor connection for the ICoT 6400.
•
Pressure supply stability.
•
Actuator and tubing leaks.
•
Actuator/Valve assembly integrity.
•
Perform a full auto CAL.
•
Remove power for at least 1 minute, perform a factory
default initialization (see Section 9.2.2.4) and retry a full
auto CAL.
•
Call Westlock- for additional support.
Transducer
error: PWM
error
During
calibration an
error occurred
with the PWM
signal that
control the
spool-valve
driver
Check:
•
Cable between the inner canister and the pneumatic
transducer assembly is tightly connected.
•
Cable and connector between the transducer board and
the spool-valve coil.
•
Perform a full auto CAL.
•
Remove power for at least 1 minute, perform a factory
default initialization (see Section 9.2.2.4) and retry the
calibration.
•
Call Westlock- for additional support.
Input
pressure
unstable
Pressure was
unstable during
calibration
Check:
•
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.
•
Perform a full auto CAL.
•
Call Westlock- for additional support.
Low
Pressure
The input
pressure is
below the
minimum input
pressure
specified.
•
Check if the input pressure is appropriately connected to
the pressure supplier.
•
Check if the input pressure gauge is measuring the
expected pressure value.
•
To use the low pressure ICoT, Check if the motor
assembly is suitable for Lo pressure.