Sun Yeh Electrical OM Series - Page 23

Quarter -Turn Electric Valve Actuator【OM Series】 Sun Yeh Ele. Ind. Co., Ltd. | 2021.11
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 The selection of the fail position while the input signal failed, please follow table
below:
Signal Failed Position
State of Switch
Fully-Open ( 90°)
7 at OFF, 8 at ON
Fully-Closed ( 0° )
7 at ON, 8 at OFF
The Last Position
7 at ON, 8 at ON
When S6 is set to OFF
 The program defines 20 mA / 5 V /10 V as a command for fully-open
positioning. The line graph below shows the signal level and the corresponding
position of the actuator.
 When a high signal value received, the actuator operates toward fully-open
position and when a low signal value received, the actuator operates toward
fully-closed position.
 The selection of the fail position while the input signal failed, please follow table
below:
Input Signal
Fully-Open ( 90°)
Fully-Closed ( 0°)
4 - 20 mA
20 mA
4 mA
1 - 5 V
5V
1V
2 - 10 V
10V
2V
Signal Failed Position
State of Switch
Fully-Open ( 90°)
7 at ON, 8 at OFF
Fully-Closed ( 0°)
7 at OFF, 8 at ON.
The Last Position
7 at ON, 8 at ON.