14.Close the positioner as described in Closing the standard and and intrinsically safe version
(Page 53).
15.Set the limits L1 and L2 as described in Setting limits (Page 64).
4.5.4.3 Setting limits
Procedure: Determining the switch status of the slotted initiators
You will require a suitable display device to determine the switch status. For example, use the
initiator tester type 2 / Ex from Pepperl + Fuchs.
1. Connect the display device to the following terminals of the Inductive Limit Switches (ILS):
– 41 and 42
– 51 and 52
2. Read the switch status of slotted initiators.
Procedure: Setting the limits L1 and L2
The consecutive numbers in the following text refer to the figure above in this section. Proceed
as follows to set the limits:
1. Move the actuator to the first desired mechanical position.
2. Adjust the upper actuating disk ④ manually until the output signal at terminals 41 and 42
changes. Set a high-low or a low-high switchover as follows:
– Rotate the actuating disc ④ beyond the switching point until you reach the next
switching point.
3. Move the actuator to the second desired mechanical position.
4. Adjust the lower actuating disk ⑤ manually until the output signal at terminals 51 and 52
changes. Set a high-low or a low-high switchover as follows:
– Rotate the actuating disc ⑤ beyond the switching point until you reach the next
switching point.
Note
Adjusting the actuating disk
The actuating disks ④ and ⑤ are relatively difficult to move. This design prevents their
unintentional movement during operation. You can achieve an easier and finer
adjustment by reducing stiction temporarily.
● Move the actuator to and fro while simultaneously holding the actuating disks ④
and ⑤.
Installing/mounting
4.5 Installing option modules
SIPART PS2 with 4 to 20 mA/HART
64 Operating Instructions, 11/2019, A5E00074631-AE
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