Tork TREA 0060, User Manual

Page: 15 / 32

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15
PIU
Figure 10. Connecting PIU to the On-Off electric actuator
Figure 11. Electric actuator with PIU added
g. PIU Potentiometer Unit
Adding PIU (potentiometer unit) to the TREA series on-off electric actuator enables to
reach the instant position information of the valve and to keep the valve in the desired
position. By managing the relay with PLC, the actuator can be operated at the desired
angle (0
0 - X 0 ).
An exemplary connection diagram is shown in Figure 10, and the location of the PIU on
the product is shown in Figure 11.
POT
10K
RELAY
PLC
ACTUATOR
45 67 8
EARTH
NEUTRAL
LIVE
OPEN
STOP
CLOSE
15 %