OPERATION
Series
80/107
Edition 2017-11-24 813316EB
5.7 Operation during power up
Valve position
before
Valve power up configuration = closed
(default)
Valve power up configuration = open
Closed (isolated) Valve remains closed.
Display shows alternately ‘C C’ and
‘INIT’.
Synchronization will be done when
first movement command is received.
Valve runs to max. throttle position to
detect the limit stops to synchronize.
Display shows configuration of
product resp. ‘SYNC’ until
synchronization is done.
Valve position after power up is open.
All other than closed
(not isolated)
Valve runs to max. throttle position to detect limit stop for synchronization.
Display shows configuration of product resp. ‘SYNC’ until synchronization is
done.
Valve position after power up is
closed
Valve position after power up is open
Refer also to chapter: «Display information».
5.8 Behavior in case of power failure
Valve position
before
power failure:
Without Power Failure Option (PFO)
642 . . - . . G . - . . . .
642 . . - . . A . - . . . .
642 . . - . . T . - . . . .
642 . . - . .
. - . . . .
With Power Failure Option (PFO)
642 . . - . . H . - . . . .
642 . . - . . C . - . . . .
642 . . - . . U . - . . . .
642 . . - . .
. - . . . .
Any Valve remains at current position.
Valve will close or open depending
on valve configuration 1).
Default is not defined.
Display indicates F.
1) Provide that battery pack of the VAT controller is charged. Charging time after power up is 2 minutes
max..
All parameters are stored in a power fail save memory.
5.9 Operation under increased temperature
CAUTION
Hot valve
Heated valve may result in minor or moderate injury.
Do not touch valve and heating device during operation. Once heating is switched off
(valve and system) await until the valve is cooled down complete before doing any
work.
This valve may be operated in the temperature range mentioned in chapter
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