DVC 5630-006 설치, 운영 및 유지보수 매뉴얼 - 페이지 7

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4.4 Setting potentiometer (replacement and setting)

The potentiometer has been calibrated at factory. However, if re-calibration is required, proceed as follows:

Manually rotate the hand wheel of the actuator to fully closed position.

While measuring the resistance between P1 (orange) and P2 (grey), gently rotate the Potentiometer Gear until it reaches between 80 - 120 Ω

(100 Ω preferred).

Engage the Potentiometer Gear into the Point Shaft Gear and use an Hex wrench to tighten the screw.

DANGER:

HAZARDOUS VOLTAGE. Make sure all incoming power is disconnected before setting the potentiometer

4.5 Current position transmitter – CPT (optional)

The potentiometer is used for the actuator signal feedback. It reads a resistance value corresponds to the current position of the actuator and transfers

to CPT card. The CPT indicates the current position of the actuator throughout the stroke by a 4 – 20mA output signal.

4.5.1 Standard features

POSITION CONVERSION ACCURACY

AMBIENT TEMPERATURE

DIELECTRIC STRENGTH

INSULATION RESISTANCE

DANGER:

HAZARDOUS VOLTAGE. Make sure all incoming power is disconnected before setting the actuator

MODEL

POWER

OUTPUT SIGNAL

OUTPUT IMPEDANCE

RESOLUTION

AMBIENT HUMIDITY

VIBRATION

CPT

110 / 230V AC, 50/60Hz 2VA Max

4~20mA

750Ω Max

Min 1/1000

±0.5 ~ ±1.5%

-20

C To +70

90% RH Max (Non-Condensing)

1500V AC 1 Min

(Input To Output To Power Ground)

ABOVE 500V DC 30MΩ

10G, 0~34Hz

Know-how makes the difference