⑩ Nameplate Clip
⑪ Adapter Enclosure
⑫ Transmission ratio selector
Figure 4-14 Installing the optional modules in the "flameproof enclosure" version
Procedure
1. Disconnect the power supply lines or de-energize the power supply lines.
2. Open the safety catch .
3. Unscrew the screw cap ⑮.
4. Completely dismount the positioner from the actuator.
5. Turn the feedback shaft ⑲ on the positioner until the pin (feedback lever bracket) ⑰ below
the adapter ⑪ shows in the direction of removal. If you look into the enclosure below the
adapter, you will see the position of the pin.
6. Screw out the four fixing screws ⑳ of the adapter ⑪.
7. Completely remove the adapter ⑪ carefully from the enclosure .
The positioner comes with a clip and a pin (feedback lever bracket) ⑰ which interlock
and ensure backlash-free position feedback. To ensure backlash-free position feedback
make sure you remove the adapter ⑪ carefully.
NOTICE
Displaced O-rings
There are several O-rings between adapter ⑪ and enclosure . These O-rings may
come off during removal.
● Carefully remove the adapter. Make sure the O-rings do not get lost during removal.
8. Loosen the two fixing screws ② of the module cover ①.
9. Remove the module cover ①.
If you are installing an option module, proceed as described for the respective option module.
Remove the basic electronics with an internal NCS module.
If you replace the basic electronics or a pneumatic block, proceed as described in the
respective sections under "Service and maintenance (Page 197)".
See also
Internal NCS module (iNCS) 6DR4004-5L / -5LE (Page 68)
Installing/mounting
4.5 Installing option modules
SIPART PS2 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E00074631-AE 57
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