Samson 3730-4, Монтаж и эксплуатация

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turn
→
Code
4
,
↵
turn
→
Select pin position,
↵
turn
→
Code 5 ,
↵
turn
→
Enter nominal travel/range,
↵
turn
→
Code 6 ,
↵
select NOM ,
↵
Press INIT key!
8.3.3 Manual method (MAN)
Initialization mode same as NOM , but for
start-up of control valves with unknown
nominal ranges. The final position of
travel/angle of rotation (valve open) is en-
tered manually.
Mount and start up the positioner, then pro-
ceed as follows:
Turn
→
Code 0 ,
↵
,
turn
→
select MAN ,
↵
turn
→
Code 1 ,
↵
,
turn
→
valve open position,
↵
turn
→
Code 3 ,
↵
,
turn
→
ON ,
↵
turn
→
Code 6 ,
↵
, select MAN ,
↵
Press INIT key!
Note: After applying the electrical reference
variable, the positioner is in the last used
operating mode. Code
0 appears in the dis-
play. If the positioner has not yet been ini-
tialized, the
symbol appears on the dis-
play and the symbol blinks.
9 Retrofitting an inductive
limit switch
Required retrofit kit:
Limit switch Order no. 1400-7460
Note:
The same requirements apply to retro-
fitting an inductive limit switch as to servic-
ing the positioner. For explosion-protected
devices, the requirements in section 11 need
to be kept.
Check the "Limit switch, inductive" box on
the nameplate after retrofitting the limit
switch.
1. Take off the rotary pushbutton (3) and
cap (1), unthread the five fixing screws
(2) and lift off the plastic cover (9) to-
gether with the display,
taking care not
to damage the ribbon cable (between
PCB and display).
2. Use a knife to cut an opening at the
marked location (4).
3. Push the connector (11) with cable
through the opening and secure the
proximity switch (7) on the cover with a
dot of glue.
4. Insert the cable connector (11) at the
socket X9.
5. Guide the cable in such a manner that
the plastic cover can be placed back
onto the positioner. Insert the fixing
screws (2) and screw tight. Attach the
clamping plate (8) onto the proximity
switch.
6. Attach the rotary switch (5). Make sure
the flattened side of the positioner shaft
is turned so that the rotary switch (5) can
82
EB 8384-4 EN
Retrofitting an inductive limit switch