力士乐比例换向阀(7)

力士乐 比例换向阀

Technical data

1) Surface temperature > 50 °C, provide contact protection 2) Important:

A monitoring circuit is to be provided for the monitoring of the solenoid current. We recommend operating the valves with the assemblies described herein.

Information on the explosion protection

Amplifier module for the control of explosion-proof pro-portional directional valves 4WRA...XE, 3DREP 6...XE and 4WRZ...XE

VT-MSPA2-200-1X/V0/0 according to data sheet 30228-200Module for monitoring and limiting the solenoid currents with proportional valves

VT-MUXA2-2-1X/V0/1A according to data sheet 30290

Control electronics 2)

electric

Voltage type Direct current or pulse-width modulated signal with a pulse voltage ≤ 28 V and a frequency ≥ 160 Hz up to max. 500 Hz Type of signal

Analog Maximum current per solenoid A 1.03Duty cycle %100Coil temperature

°C Up to 125

Area of application in accordance with the Explosion Protection Directive 94/9/EC II 2G Type of protection Valve according to EN 13463-1:2009 / EN 13463-5:2011

c T4 X

Type of protection Valve solenoid according to EN 60079-7:2007 / EN 60079-18:2009Ex e mb IIC T4 Gb 1)Type examination certificate Solenoid KEMA 02ATEX2240 X "IECEx Certificate of Conformity" Solenoid IECEx DEK 12.0068X

Special operating conditions for a safe application

– In case of bank assembly, only one solenoid of all valves may be energized at a time.

– In case of valves with two solenoids, maximally one of the solenoids may be energized at a time.

– Only direct current or a pulse-width modulated signal with a pulse voltage ≤ 28 V and frequency ≥ 160 Hz up to max. 500 Hz may be used.