Samson 3738-20, Монтаж и эксплуатация

Страница: 48 / 84

48 EB 8390 EN
Start-up
8.9 Zero/end position calibra-
tion
When the zero point or end positions are in-
correct, it may be necessary to recalibrate
them. Always perform an end position cali-
bration for the fail-safe position and for the
operating position.
The electronic limit switch must be in the con-
figuration mode (SET). See page 40.
P11: Reading when the
end position cali-
bration has not
been started
After the end position
calibration has been
started:
P11 : Zero/end position
calibration in
progress
Turn
g
P11 (display: REF)
Press and hold for six seconds. The sec-
onds remaining until the end position cali-
bration starts appear on the display.
The current valve position is set to the travel
stop (0 % or 100 %).
The electronic limit switch is in the configura
-
tion mode (SET).
To start operation, exit the configuration
mode (see page 40).
The end position calibration is automatically
canceled if an error occurs (ERR on the dis-
play).
The error can be read in the ERR parameter
level:
−
E6 : Time-out
−
E8: Unable to calibrate end positions
8.10 Reset to default settings
This function resets all parameters to the fac-
tory default settings (see parameter list in
section 13). All error and status messages
are also reset.
NOTICE
After performing a reset, the elec-
tronic limit switch needs to be re-ini-
tialized (see section 8.7).
The electronic limit switch must be in the con-
figuration mode (SET). See page 40.
P21 : Reset
Turn
g
P21 (RST)
Press , P21 blinks
Press .
The initialization values are reset to the de-
fault settings.
Î
Re-initialize the electronic limit switch
(see section 8.7).
Î
Set PST parameters (see section 9.2).