CATALOGUE release 8.7

Products designed for industrial applications.

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Series LRXA4 servo valves - Positioning control

CONTROL >

CATALOGUE

Release 8.7

/15.30.03

CONTROL

CONNECTORS M16 7 POLES

PIN FEMALE CONNECTOR M16

7 FOR SLAVE VALVE

MALE CONNECTOR M16 7

POLES FOR MASTER VALVE

SUPPLY

NOTES

Power supply +24 VDC

Power supply GND

3 Input signal(for slave valve,

+/- 5V vs. pin 4)

Input signal (Setpoint)

The total range of this signal corresponds to the total electric range of the feedback system. The cylinder is

positioned always and immediately to the position according to this signal. Therefore this signal has to have a

high signal quality: if, for example, the feedback system has a length of 300 mm, a ripple of 10 mVpp on the

command signal will generate a positioning ripple of +/-0.3 mm !!

4 GND input signal (for slave

valve, don’t connect to other

GND!)

GND Input signal

Pin 4 and 2 should be connected. If that is not possible, the voltage between both GND’s may not increase +/- 5

GND output feedback signal

For slave-valve, 0-5V vs. pin 4

Output In-position

24 VDC vs. pin 2

Output feedback signal

0-10 VDC vs. pin2. The accuracy-fault of that signal is about 2% and there is an offset of approx. 150 mV. Don’t

use it for precise documentations

A = female connector M16 7 poles for slave valve

B = male connector M16 7 poles for master valve supply

C = female connector M16 4 poles for the feedback system (position sensor)

FEMALE CONNECTOR M16 4 POLES FOR THE FEEDBACK SYSTEM (POSITION SENSOR)

FUNCTION

NOTES

GND

Potentiometer GND. Never connect this pin to other GNDs. Because of technical reasons the voltage at this pin is about half of the power

supply voltage.

Input of the feedback signal

Potentiometer output. If there isn`t used a potentiometer as feedback system, the output signal of the feedback system has to be 0-5 VDC. The

signal must have a floating GND (see remark to pin 1).

Output supply

For potentiometer, +5 VDC vs. pin 1

Shielding

The cable to the feedback system has to be shielded. At the feedback system’s end of the cable the shielding must be connected to the metallic

housing of the feedback system, at the valve’s end pin 4 is connected internally to the valve housing.

SERVO VALVES LRXA4 - PNEUMATICAL INSTALLATION