26
7 ND92F 70 en
9.5
Removal of the limit switches
ND92_F/K_, ND92_F/I_ or ND92_F/B
for accessing the valve controller
❑
Remove the cover (100) and the pointer (109).
❑
Loosen the screws (314) in the cam disks (313)
and remove the cam disks and spacers (346)
from the shaft.
❑
Remove the LUI cabling from the circuit board.
Disconnect and remove all cabling which enters
the limit switch housing (300).
❑
Remove screws (325), 3 pcs and lift out the limit
switch base plate (324) complete with switches,
LUI and connector block.
❑
Open screw (326) and turn the limit switch hous-
ing (300) from the positioner housing.
❑
Remove the electronics cover (39).
❑
Proceed with the valve controller as applicable.
❑
Re-install the limit switch according to 9.2 and
check the adjustment according to 9.4.
9.6
Circuit diagrams
The internal circuitry of the limit switch is shown in the
connection diagrams in 12.9 and inside the cover.
9.7
Maintenance
Regular maintenance of the limit switch is not neces-
sary.
10
TOOLS
No special tools required.
11
ORDERING SPARE PARTS
Spare parts are delivered as modules. The modules
available are indicated in 12.1.
When ordering spare parts, always include the following
information:
❑
Valve controller type designation and serial
number from the ID plate
❑
The code of this manual, the part number, the
part name and quantity required
ATEX WARNING:
The locking screw of the limit switch housing (Part
326) is essential to explosion protection.
The limit switch housing has to be locked in place for
Ex d protection. The screw grounds the limit switch
housing to the housing of the valve controller.
Summary of Contents for ND9200F
Page 40: ...40 7 ND92F 70 en 14 EC DECLARATION OF CONFORMITY ...
Page 42: ...42 7 ND92F 70 en ...
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