PSN1G MSYSTEM | Alldatasheet

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MODEL: PSN1G PSN1G SPECIFICATIONS ES-4876 Rev.0 Page 1/6 http://www.m-system.co.jp/ Final Control Elements SERVO-TOP II ELECTRONIC ACTUATOR linear type; rated thrust 3000N Functions & Features

  • High-resolution electronic actuator for control valves
  • Fast action control without overshoot
  • Equipped with high-performance stepping motor
  • Usable in both low and high temperature ranges
  • Excellent in hysteresis, linear, and resolution characteristics
  • Disc spring with buffer incorporated Typical Applications
  • Fuel cell systems
  • Capacity control of compressor for refrigerating machines
  • High-speed & high-performance control valves used in various plants and industries 221.5 (8.72) MODEL: PSN1G–A21–A

ORDERING INFORMATION

  • Code number: PSN1G-A21-AR
  • Use Ordering Information Sheet (No. ESU-4876). Ex-factory settings will be as shown in the table below if not specified by the user. EX-FACTORY SETTINGS Item Setting Action Reverse Operations at abnormally low input Stop Output stem ex-factory position Upper-end Opening/Closing speed 7 .5 sec. / 20 mm Deadband setting 0.1 % Restart limiting timer 0.1 sec. OUTPUT STEM OPERATION DISTANCE SEALING SPRING PRESSURE 2: 3000 N use OUTPUT STEM TYPE 1: M14 male screw, pitch 1.5 INPUT Current A: 4 – 20 mA DC (Input resistance 250 Ω) POWER SUPPLY VOLTAGE DC Power R: 24 V DC (Operational voltage range 24 V ±10 %, ripple 10 %p-p max.) Common Specifications
  • Output signal: 4 - 20 mA DC (allowable load resistance: ≤ 300 Ω)
  • Rated thrust: 3000 N
  • Maximum thrust: 3200 N (reference value)
  • Thrust when output stem is locked: 3500 N min. (reference value)
  • Operation speed: 7.5 sec./20 mm RELATED PRODUCTS (Products sold separately)
  • Manual operation handle (model: HPSN)
  • Programming Unit (model: PU-2x) GENERAL SPECIFICATIONS Degree of protection: IP66 Action: "Reverse" action, in which the output stem retracts or moves upward as the input signal increases. Operation at abnormally low input: (selectable with DIP switches) - Extend/move downward - Retract/move upward - Stop Abnormal signal level: ≤ 1.48(±0.4) mA DC Wiring conduits: G 1/2 female thread (two) Terminal block: 7.62 mm pitch; M3 screw terminals (torque

0.5 N·m)

Screw terminal: Nickel-plated brass Housing material: Diecast aluminum Coating: Silver color Drive: Stepping motor Insulation class: E

MODEL: PSN1G PSN1G SPECIFICATIONS ES-4876 Rev.0 Page 2/6 http://www.m-system.co.jp/ Power control element: Power MOS-FET Deadband adjustment: 0.1 – 5.0 % Restart limiting timer adjustment: 0 – 30 sec. Isolation: Signal or power to metallic housing Fuse: 6 A (replaceable) Protective functions: Error detection, Abnormal temperature increase protection, Motor preheating function Power indicator: Green LED is on while the power is supplied. Input indicator: Green LED is ON while normal signal is input Alarm indicator: Red LED turns on when an error is detected; and Red LED blinks at 1-sec. intervals when abnormal temperature rise is detected. Manual operation: Available User-configurable items: Programming Unit (model: PU-2x) allows programming of: Full-open(upper-end)/full-closed(lower-end) positions; Extended/retracted side limiters; Deadband; and Restart limiting timer OUTPUT SIGNAL SPECIFICATIONS ■ Position Signal: 4 – 20 mA DC Load resistance: ≤ 300 Ω STROKE RATE Duty cycle = Within 50 % The unit must operate at an average duty cycle of 50% (ratio of operating time to standby time) or less. Operation rate: Less than 13 strokes / min. (excepting momentary peak stroke rate) INSTALLATION Current consumption values Standby current value: 0.15 A (25℃at) Current at no load: 2.1 A (25℃at) Locked rotor current: 3.7 A max. Current in standby or non-operating state at - 25°C: 1 A (- 25℃at) (approx. 2.4 A. during operation at - 25°C) Operating temperature: -25 to +66°C (-13 to +150.8°F) Storage temperature: -29 to +70°C (-20.2 to 158°F) Operating humidity: 30 to 85 %RH (non-condensing) Vibration resistance:

  • Sweep endurance test
  • Acceleration: 1 G (9.8 m/s2)
  • Frequency: 10 to 1000 Hz
  • Cycle: 20 cycles
  • Sweep rate: 1 oct./min.
  • Testing time: approx. 4 hr. 30 min.
  • Direction: X, Y, Z Mounting orientation: Vertical to horizontal (DO NOT mount upside-down or with the output stem facing upward) Weight: Approx. 5.7 kg (12.57 lb) PERFORMANCE Resolution: 0.02 mm Hysteresis: 0.15% (0.03 mm) Linear characteristic: 0.3% (0.06 mm) Insulation resistance: ≥ 100 MΩ with 500 V DC (signal or power to metallic housing) Dielectric strength: 500 V AC @ 1 minute (signal or power to metallic housing) STANDARDS & APPROVALS EU conformity
  • EMC Directive EMI EN 61000-6-4 EMS EN 61000-6-2
  • RoHS Directive EN 50581 TERMINOLOGY
  • Error Detection When the output stem does not operate due to overload or certain malfunction despite there is a deviation between the input signal and the position signal, PSN tries to start the motor by applying a locked rotor torque up to five times. Then, if the stem still does not operate, the unit outputs an alarm signal, turns Alarm LED on, and stops the power supply to the motor. In order to reset the unit after error detection, apply 0 % and 100 % input signals alternately for several times, or turn off and on the power voltage.
  • Abnormal Temperature Increase Protection When the internal temperature sensor detects an abnormal temperature increase in the motor, PSN blinks the alarm LED and stops power supply to the motor until the temperature decreases to an acceptable level. Usually, power supply to the motor is automatically resumed in a few minutes, however, it will take longer if the ambient temperature is higher.
  • Motor Preheating Function When the internal temperature sensor detects a temperature lower than 0°C / 32°F (approximate) on the surface of the motor, the unit supplies current to the motor to warm up the motor to 0°C / 32°F. Keep the power voltage supplied when this unit is used in

MODEL: PSN1G PSN1G SPECIFICATIONS ES-4876 Rev.0 Page 3/6 http://www.m-system.co.jp/ the ambient temperature below 0°C or 32°F.

  • Hysteresis The output stem reciprocates i.e. moves up and down according to the input signal. Hysteresis is the difference between the two curves of ascending and descending directions, which is expressed in percentage. In the case of PSN, the hysteresis distance is
  • Linear Characteristics The output stem reciprocates i.e. moves up and down according to the input signal. In theory, the output stem moves by a distance proportional to the input signal. In the case of PSN, the difference between the theoretical value and the actual distance that the output stem actually moved is "0.06mm/MAX. = 0.3%".
  • Resolution (varies according to the deadband settings) The output stem operates according to the input signal. When 4 to 20 mA DC input signal is applied, the output stem follows the input signal in units of 0.16 mA. That is, resolution of 0.1% is achieved when the output stem reciprocates i.e. moves up and down 1,000 times in units of 0.16 mA or less.
  • Operation at abnormally low input The output stem operates as specified when an abnormally low input is detected even though power supply voltage is being applied. The abnormal input signal level is 1.48 (±0.4) mA DC or lower. The output stem operation mode can be selected from: - Stop at the current position; - Extend/move downward to the full-closed/lower-end position; and - Retract/move upward to the full-open/upper-end position.
  • Restart Limiting Timer The output stem operates frequently (i.e. hunting occurs) when input signal is unstable and its value changes frequently, resulting in shortening the life of the product. In order to prevent such frequent operation or hunting of the actuator, the restart limiting timer can be set (0 to 30 sec.) so as to prevent the motor from restarting for the specified period of time after reaching and stopping at the target position based on the input signal. The unit must operate at an average duty cycle of 50% (ratio of operating time to standby time) or less. The operation rate exceeding 13 strokes / min. is regarded as hunting.

MODEL: PSN1G PSN1G SPECIFICATIONS ES-4876 Rev.0 Page 4/6 http://www.m-system.co.jp/ OPERATION Input 4mA DC / Full-closed [Lower-end] 20mA DC / Full-open [Upper-end] position Output Stem position 20 mm (Operation distance) 106 ■ OUTPUT STEM POSITION WHEN INPUT SIGNAL IS APPLIED (Reverse action) Input 20mA DC / Full-closed [Lower-end] 4mA DC / Full-open [Upper-end] position Output Stem position 20 mm (Operation distance) 106 ■ OUTPUT STEM POSITION WHEN INPUT SIGNAL IS APPLIED (Direct action)

MODEL: PSN1G PSN1G SPECIFICATIONS ES-4876 Rev.0 Page 5/6 http://www.m-system.co.jp/ EXTERNAL DIMENSIONS unit: mm (inch) 140 (5.51) 182 (7.17) 70 (2.76) sq. 50.8 (2) 90 (3.54) sq. 4.5 (.18) 4–ø9 (.35) MOUNTING HOLE 77.5 (3.05 ) 25 (.98 ) 55 (2.17) Space required to remove conver 2-G 1/2 CONDUIT M14, 1.5 (.06) PITCH MANUAL OPERATION STEM, 8 (.31) sq. YOKE SURFACE ø 60 –0.1 10.5 (.41) 106 (4.17) max . 86 (3.39) min. 10 (.39)

MODEL: PSN1G PSN1G SPECIFICATIONS ES-4876 Rev.0 Page 6/6 http://www.m-system.co.jp/ SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM UP DOWN CPU COM1 INPUT SIGNAL OUTPUT SIGNAL INPALM PWR PU-2x R DIP SW Isolation Power Circuit Latching SERIAL TRANSMISSION LINE MODULAR JACK FUSE POWER Potentiometer Temp. Sensor Stepping Motor Input Circuit Position Output Multiplexer Multiplexer Position InputMultiplexer Motor Driver Constant Current Circuit Specifications are subject to change without notice.