Samson 3738-20, Монтаж и эксплуатация

Страница: 47 / 84

EB 8390 EN 47
Start-up
Press and hold for six seconds. The sec-
onds remaining until the position check starts
appear on the display.
Display: POS1
Î
Move the valve to the fail-safe position
manually (de-energize the solenoid
valve).
Press to confirm the fail-safe position
g
WAIT
The electronic limit switch saves the fail-safe
position.
Display: POS2
Î
Move the valve to the operating position
manually (energize the solenoid valve).
Press to confirm the operating position
g
WAIT
The electronic limit switch saves the operat-
ing position.
After the initialization has been successfully
completed, the current valve position in % is
indicated.
The electronic limit switch is in the configura -
tion mode (SET).
To start operation, exit the configuration
mode (see page 40).
The manual initialization is automatically
canceled if a fault occurs (ERR on the dis-
play).
The initialization error can be read in the
ERR parameter level:
−
E0: No initialization
−
E2 : Min. travel not reached
−
E3 : Max. travel exceeded
−
E6 : Time-out
8.8 Replacing an electronic
limit switch
An (old) electronic limit switch can be re-
placed by another (new) electronic limit
switch of the same type by performing an
end position calibration in the operating or
fail-safe position, but without having to ini-
tialize the new one, provided the following
conditions are met:
−
Data from the electronic limit switch be-
ing replaced are downloaded and
saved in TROVIS-VIEW.
− The screw with magnet must not be un-
fastened while the electronic limit switch
is being replaced.
−
The end stops of the valve must not be
changed while the electronic limit switch
is being replaced.
Replacing an electronic limit switch
Î
Download and save data from the elec-
tronic limit switch being replaced in
TROVIS-VIEW.
Î
Replace electronic limit switch.
Î
Load data from TROVIS-VIEW onto the
new electronic limit switch.
Î
Perform an end position calibration as
described in section 8.9.