BIFFI ICON3000 Service Manual

Service Manual
MDE 252 Rev. 1 December 2021
Troubleshooting 7
Section 2: Troubleshooting
2.2.4 Alarm on Local Display: Jammed Valve in Closing
JAMMED VALVE IN CLOSING
Reset the alarm and repeat the close command.
1. If the actuator position % does not change within a preset value dened in the parameter "valve jammed
time" when a closing command is sent, the "Jammed valve in closing" alarm appears.
2. The actuator can operate in opening direction.
3. An electrical command in open direction clears the alarm.
The fault reason may be reconducted to an
external unconventional operation to the
actuator and the stroke limit position need to
be reset.
Please verify (in sequence):
1. Verify all the functionalities of
the manual operation with the
manual engagement of the
handweel, the proper operation of
the handwheel and the automatic
disengagement in order to verify
any possible damage in the internal
mechanical parts.
2. Verify the mechanical integrity of
the shaft of the position sensor.
Alarm Disappear?
YES
NO

BIFFI ICON3000 Specifications

General

Brand	BIFFI
Model	ICON3000
Category	Control Unit
Language	English