Tork TREA 0060, User Manual

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SMS-TORK Endüstriyel Otomasyon Ürünleri San. Tic. Ltd. Şti.
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Table 6. Selection Table of Proportional
Electric Actuator’s Error Positions
SETTINGS HATA POZİSYONLARI SEÇİMİ
Error Position Pin 4 Pin 5
Stay in Current Position CLOSE CLOSEI
Open Valve OPEN CLOSE
Close Valve CLOSE OPEN
• Reversible Control Signal
The proportional electric actuator is set at the factory to close at a low signal level and to
open at a high signal level. If it is desired to be controlled by applying the reverse control
signal, pin 3 of the SETTINGS switch should be turned ON (Up).
For example;
If the control signal is set to the 4 - 20 mA control signal, the actuator acts as follows when
the 4 - 20 mA control signal is applied:
If switch 3 is in the ‘ON’ position
4mA : Fully opened
20 mA : Fully closed
If switch 3 is in the ‘CLOSE’ position
4 mA : Fully opened
20 mA : Fully closed
• Reversible Output Signal
The user can reverse the input signal as well as the feedback signal. This setting can be
made by setting the pin 2 of the SETTINGS switch to the ON (Up) position. Based on the
example given in the input signal, normally the electric actuator will output 4mA when the
valve is in full closed position, and will output 20mA when the output reverse setting is
made. This setting is valid for all output signal types.
• Automatic Calibration
Electrical connections and cam settings are made. The pin (1) of the SETTINGS switch is
set to the OFF (Down) position. The SET and OPEN keys shown in Figure 15 are pressed
at the same time. While the power led is constantly lit, the green, yellow, blue and red leds
will light together, and then the electric actuator will begin automatic calibration. In this
case, the keys are released. When automatic calibration starts, the electric actuator will
primarily close the valve completely.During the closing process, the RGB1 led will flash
position. The setting positions made with pins 4 and 5 of the SETTINGS switch shown in
Figure 12 are shown in Table 6.