BIFFI ICON3000 Service Manual

December 2021
Service Manual
MDE 252 Rev. 1
Troubleshooting
6
Section 2: Troubleshooting
2.2.3 Alarm on Local Display: Jammed Valve in Opening
JAMMED VALVE IN OPENING
Reset the alarm and repeat the open command.
1. If the actuator position % does not change within a preset value dened in the parameter "valve jammed
time" when an opening command is sent, the "Jammed valve in opening" alarm appears.
2. The actuator can operate in closing direction.
3. An electrical command in close 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 handwheel,
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