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Rotork electric actuator IQC20F14A multi-rotation control
Basic Function] 1. Same stepping device: can automatically correct phase sequence and default phase protection. 
2. Overheat protection: the thermal relay in the motor coil can detect the coil temperature. When the temperature exceeds the predetermined value, the control circuit can be disconnected. 
3. Valve stuck protection: if the valve is stuck and does not act within 7 seconds after startup, the circuit will be automatically disconnected. 
4. Instantaneous reversal protection: the automatic delay circuit processes the instantaneous reversal command to prevent impact. 
5. Data record: each set has a data recorder, which can record historical moment, frequency, state and date, etc
Real-time query, analysis and diagnosis.
   
Technical index] 1. Local control
1) Provide non-intrusive control knob on the electrical cabinet cover, red for local/stop/remote three-state selection switch, black
The color knob is the local electric operating switch for opening or closing the valve. 
2) On-off/off/stop operation can also be carried out within 0.75m by IQ setting device for local control. 
2. Remote switching value control
1) Optical isolation interface is adopted, usually positive switch (negative switch can also be provided)
2) Control power supply provided by external user: 20-60V AC/DC or 60-120V AC
3) Control power supply provided inside the actuator: 24V DC
4) Pull-down power supply of each control terminal:
MA @ 24V DC 12mA @ 120V AC
5) The minimum voltage is 20V when connecting
Max. voltage at disconnection 3V
The shortest signal time is 300ms
The maximum capacitance between cores of the cable is 2uF
3. Remote analog control
1) The optional board-proportional control board is added, and the user can control 4-20mA analog quantity. 
2) Precision: 1%
3) Dead band: 0-9.9% adjustable in full stroke
4) Input impedance: 250 Ω
5) The input signal can correspond to the valve position at will. 
4. Output signal
1) Provide four passive, single-pole lockable contacts S1, S2, S3, S4, and each contact can be independently set with an IQ setter
Is set as one of the following signals; Each contact can be set as "normally open" or "normally closed", and the contact capacity is
5mA-5A 120V AC or 30V DC. 
a、 Valve position
Fully open, fully closed position (accurate) or any intermediate position (0-99% opening)
b、 State of State
Valve is opening, closing, running, selecting local stop, selecting local, selecting remote, opening or
Closing valve interlock start, emergency protection start, etc. 
c、 Valve alarm
Moment trip of motor in stroke, moment trip of motor in fully open or fully closed position, actuator operated by handwheel. 
d、 Alarm of actuator
Power supply phase loss, internal 24V DC loss, battery voltage too low, temperature protection tripping. 
2) Provide a monitoring relay, which is a passive and reversible independent relay with a contact capacity of 5mA-
A, 120 VAC or 30 V DC, relay will disconnect in one or more of the following cases:
a、 Single or multiphase power failure
b、 Control circuit power failure
c、 Selector switch in local or stop position
d、 Tripping of motor temperature protector
5. Output analog signal
1) Remote valve position analog display - CPT
The Current Valve Position Transmitter (CPT) provides an internally powered 4-20mA analog signal proportional to the valve position, which can
Select the minimum signal corresponding to the valve fully closed or fully open, and automatically set the zero point and full scale, the output impedance is 500 Ω
Repeatability and alignment within ± 1% of full valve travel. 
Rotork electric actuator IQC20F14A multi-rotation control
Representative models: IQ10, IQ12, IQ18, IQ20, IQ25, IQ35, IQ40, IQ70, IQ90, IQ95, IQT series, IQM series, AQ series.