Valve Controller - PR Electronics 2224

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

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.

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.

Specification

ENVIRONMENTAL CONDITIONS
Operating temperature	-20°C to +60°C
Relative humidity	< 95% RH (non-cond.)
Protection degree	IP50
MECHANICAL SPECIFICATIONS
Dimensions (HxWxD)	80.5 x 35.5 x 84.5 mm (D is without pins)
Weight approx.	130 g
COMMON SPECIFICATIONS
Supply
Supply voltage (nom. 12 V / 24 V)	9.6…28.8 VDC
Internal power dissipation	2 W / 24 V 1,8 W / 12 V
Programming	Front-programmable
Updating time	30 ms
Temperature coefficient	0.01%/°C
Accuracy	Better than 0.2% of selected range
Linearity error	0.20%
EMC immunity influence	< 2% of span
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 power	36 W (max.)
Output current	3000 mA mean
Current peak	7:00 AM
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
OBSERVED AUTHORITY REQUIREMENTS
EMC	2014/30/EU
EAC	TR-CU 020/2011

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