Valve controller 2224

Model : PR 2224
Brand: PR Electronics

LED display with 4-digit and 14-segment
Features analog output and 2 relays
RTD input type Pt, Ni, Cu
Thermocouple (TC) input type B, E, J, K, L, N, R, S, T, U
Potentiometer input: 10…100kΩ
Linear resistance input: 0…10000Ω
Voltage & Current input
Relay output functions: Setpoint
DC Current output
3kVAC galvanic isolation
Programmable with Front keys
Universally powered by 21.6…253 VAC / 19.2…300 VDC

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Application

  • Control and regulation of single- or double-coil hydraulic and pneumatic proportional valves used for accurate oil flow regulation, linear soft acceleration and deceleration, modulated output signal, and programmable deadband.
  • Is highly suitable for joystick regulation of A/B movements.
  • Where changes to A and B need to be selected directly or according to the value of an input signal.

Technical characteristics

  • During operation the display shows the present output signal as a % of the I valve.
  • Programmable current or voltage input for standard signals acc. to order schedule, joystick / potentiometer or a special non-programmable input.
  • Digital inputs for external control functions.
  • A pulsating current output prevents the connected valve from sticking.
  • Optional programming of the modulation frequency (PWM) between 8 and 400 Hz.
  • Multiple adjustable parameters such as output currents, ramp times, jump values, chopper frequency, reversal, deadband, and ON/OFF functions.
  • Mounting for a standard 11-pole socket which can be adapted for DIN rail or plate use with PR’s 7023 adaptor and 7024 mounting keying.

Advanced features

  • Multifunction user interface consisting of three pushbuttons and a 3-digit LED display.
  • All parameters are protected against unauthorized changes with a password.

Input specifications

Current input
Measurement range 0…20 mA 4…20 mA
Input resistance 50 Ω + PTC (54 Ω)

Voltage input
Measurement range 0/0.2…1 V and 0/2…10 V
Input resistance 10 MΩ

Potentiometer input
Potentiometer min….max. 0…10 V or ±10 V / 10 kΩ
Operation / shutdown PNP / 2.2 kΩ, 12 / 24 V
Imax.1 & Imax.2 PNP / 2.2 kΩ, 12 / 24 V
A / B channel PNP / 2.2 kΩ, 12 / 24 V
Deadband 0…99.9% of input span

Output specifications

Output voltage Supply voltage-0.5 V (max.)
Output current 3000 mA mean
Current peak 7 A
Reference voltage 10 VDC (A valve) ±10 VDC (A & B valve)
Ramp up & down Time 0…10.0 s
PWM frequency 8…400 Hz in steps of 1 Hz
of span = of the presently selected range

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