REM.S.RA...

TYPE ELECTRONIC REGULATORS FOR

SINGLE SOLENOID PROPORTIONAL CONTROL VALVES
The electronic control card type REM.S.RA has been designed to drive the “XD.*.A, XDP.3.A,
XP.3, XQ.3, XQP.*. and CXQ.3” series ARON single solenoid proportional valves without in-
tegral position transducer. The control card is enclosed in an “OCTAL” type housing, a typical
relay mounting standard. The output stage operates on the pulse width modulation principle
(P.W.M.) and is provided with current feedback in order to obtain a solenoid output current
proportional to the reference input signal. Output short circuit and supply polarity inversion
protection is provided.
Gain, minimum current and rise and fall ramp time adjustments are possible through the
corresponding front panel trimming potentiometers, while the output current to the solenoid
can be measured via the Valve Current test points, and the ramp operation can be excluded.
REM.S.RA...
The product incorporates a serial interface for adjustment of parameters.
CALIBRATION PROCEDURE CH. IX PAGE 5
OVERALL DIMENSIONS CH. IX PAGE 10 Pay attention please: electronic regulators must be used in dampness and water pro-
MOUNTING BASES CH. IX PAGE 10 tected places.

ORDERING CODE s2%-3AND2%-$MANUALUSEANDINSTALLATION

s2%-3AND2%-$VARIANT$*AND*5
2%- Miniaturized electronic s!2/.$'SOFTWARE
regulator in Octal !VAILABLEONhPRODUCTSvSECTIONOFWWWBREVINImUIDPOWERCOMWEBSITEPUT2%-3ON
type container internal search engine).
ADJUSTMENT PANEL
3 Single solenoid
3UPPLY 10VDC ÷ 30VDC (green led)
2! Asymmetrical ramp /VERLOAD Protection against overload (red led)
2AMPOFF Ramp off (red led)
* Maximum output /UTPUT Output (current at solenoid, yellow led)
current I MAX. (JU variant) I. min. Minimum current adjustment
'AIN Gain adjustment
X = 0.88 A (0.80 A)
2AMPUP Rump up adjustment time
Y = 1.76 A (1.20 A) 2AMPDOWN Rump down adjustment time
Z = 2.8 A 6ALVE#URRENT Current test point at solenoid (1V =1A)

* Input reference (V)

see note (*) below )FANYlELDISMISSINGFROMTHEORDERINGCODETHESTANDARDSETTINGISASFOLLOWS
= 0÷ + 2 V
= 0÷ + 5 V - Input ref. = 0÷5V
- Dither 100Hz
0 = 0÷ + 10 V
- Imin. = continuous
! = 0 ÷ 20 mA - Imax. = 0.8A

* Frequency Dither ELECTRICAL CIRCUIT AND CONNECTIONS

= 100 Hz (standard, JU var.)
= 330 Hz (for XP.3) 3UP  Power supply
/UT  Output for external potentiometer
2EF Reference
* Minimum initial current

9
3/  Output at solenoid
'= step (normally for $2 Ramp off (contact closed = exclusion)
XD.*. and XDP.3 valves) Pot External reference potentiometer (2 ÷ 5 KΩ)
#= continuous (normally #3 Feedback current
07- Pulse width modulate wave
for XP.3, XQ.3, XQP.*.
and CXQ.3 valves)
** 00 = No variant
$* = Double gain setpoint
*5 = for MHPF and MSPF
electrohydraulics modules
(directional valves HPV)
 Serial No.


)FTHEINPUTREFERENCEISACURRENTSIGNALM!
THEREGULATORHASTOBEPRE SETTEDINTHEFACTORY

s registered mark for industrial envi-

ronment with reference to the electromagnetic
compatibility. European norms:
- EN61000-6-2 general safety norm
- industrial environment
- EN61000-6-4 emission general norm
- residential environment

SIDE A
s0RODUCTINACCORDANCEWITHROHS 2002/95/
CE Europe Directive.

File: REMS004_E )8s 06/2010/e

ELECTRONIC REGULATORS FOR SINGLE SOLENOID PROPORTIONAL CONTROL VALVES
Power supply 10 ÷ 30 VDC
Maximum supply voltage 36 V
Power absorption 40 W
REFERENCE INPUT SIGNAL
Current output
setting by dip switches Imax = 2.8A
Imax = 1.76A
Imax = 0.88A
External potentiometer supply output
short circuit protected +5V 10mA
Reference input signal
setting by dip switches 0 ÷ +2V
0 ÷ +5V
0 ÷ +10V
Note: for the current signal (mA) the regulator
has to be pre-setted in the factory. 0 ÷ 20mA
Polarization current adjustment Imin = 0 ÷ 50% Imax
Current gain adjustment 50% ÷ 100% Imax
Ramp time adjustment 0 ÷ 20 sec
Ambient operating temperature -20 ÷ +70°C
Current test point 1 Volt = 1 Ampere
Weight 0,101 Kg

REM.S.RA... INSTRUCTIONS FOR USE

CALIBRATION PROCEDURE
Connect the card in the proper way following the previous page diagram but without powering
it or in the way following the next page "Typical connections". Turn completely anticlockwise
(20 turns about) the trimming potentiometers of Minimu Current (Imin) and Ramp Time (Ramp-
up and Ramp-down), and position the reference potentiometer on zero. Before powering the
card, ensure that any unforeseen hydraulic system movement cannot cause material damage
or injury to people. Power now the card; the green LED should light up.

MINIMUM CURRENT OR POLARIZATION CURRENT ADJUSTMENT

Turn slowly the minimum current trimming potentiometer clockwise (Imin) until an actuator
movement can be visually detected. Turn slowly anticlockwise the potentiometer: the minimum
current setting will be adjusted correctly when the actuator movement stops. For the REM
model with minimum initial threshold current, set the reference signal to a Vref. of 150 mV.

MAXIMUM CURRENT GAIN ADJUSTMENT

Turn first the ramp time trimming potentiometers clockwise by at least 10 turns, if the system
9
could be damaged by a too fast solenoid operation (evaluate the application carefully). The
maximum actuator speed can now be adjusted. Turn the reference signal to its maximum set-
ting and rotate slowly the GAIN trimming potentiometer (GAIN) until the maximum required
speed is obtained. The speed can now be varied by moving the potentiometer.

RAMP TIME ADJUSTMENT (RAMP-UP E RAMP-DOWN)

The ramp time is the time taken to pass from the minimum to the maximum current value, and
vice versa. It’s adjustable from a minimum of 0s up to a maximum of 20s (to reach the maximum
current value setted). Turning clockwise the trimming potentiometer, the ramp time increases.

NOTES:
- The ramp fall time affects the actuator stop position. Moving the reference to zero Volt, the
actuator goes on moving till the setted ramp time is elapsed. Therefore it’s necessary to
adjust it properly.
- When the overload red LED lights up, it will be necessary to switch off the power to the card,
switching it on again after having eliminated the cause of overload.

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 ELECTRONIC REGULATORS FOR SINGLE SOLENOID PROPORTIONAL CONTROL VALVES

REM.S.RA... DIP SWITCHES TABLE

For our proportional valves are recommended the following settings: Six miniature switches are mounted internally on one
G XD.3.A DITHER =100Hz Imax. = 2.35A with 9V coil of the REM sides. The REM configuration to suit any
G XDP.3.A DITHER =100Hz Imax. = 2.35A with 9V coil particular application can be implemented by setting
C XQ.3 DITHER =100Hz Imax. = 2.35A with 9V coil these switches.
C XQP.3 DITHER =100Hz Imax. = 2.35A with 9V coil PWM frequency (100 to 330 Hz), minimum (continuous
C CXQ.3 DITHER =100Hz Imax. = 2.35A with 9V coil or step) current, reference voltage range and maximum
G XD.3.A DITHER =100Hz Imax. = 1.76A with 12V coil current (Imax) can thus be adjusted.
G XDP.5.A DITHER =100Hz Imax. = 2.5A with 12V coil
G XDP.3.A DITHER =100Hz Imax. = 1.76A with 12V coil
C XQ.3 DITHER =100Hz Imax. = 1.76A with 12V coil
C XQP.3 DITHER =100Hz Imax. = 1.76A with 12V coil
C XQP.5 DITHER =100Hz Imax. = 2.5A with 12V coil
C XP.3 DITHER =330Hz Imax. = 1.25A with 12V coil
C CXQ.3 DITHER =100Hz Imax. = 1.76A with 12V coil
G XD.3.A DITHER =100Hz Imax. = 0.88A with 24V coil
G XDP.5.A DITHER =100Hz Imax. = 1.25A with 24V coil
G XDP.3.A DITHER =100Hz Imax. = 0.88A with 24V coil 1 2 3 4 5 6
C XQ.3 DITHER =100Hz Imax. = 0.88A with 24V coil
C XQP.3 DITHER =100Hz Imax. = 0.88A with 24V coil
C XQP.5 DITHER =100Hz Imax. = 1.25A with 24V coil
C XP.3 DITHER =330Hz Imax. = 0.68A with 24V coil
C CXQ.3 DITHER =100Hz Imax. = 0.88A with 24V coil Function DITHER l min Input ref. I.max.
DIP 100 330 C G 0÷10 0÷5 0÷2 0÷20 2.8 1.76 0.88
sw Hz Hz V V V mA A A A
1 OFF ON
2 OFF ON
3 OFF ON OFF ON
4 OFF OFF ON OFF
5 OFF ON OFF
6 OFF OFF ON

TYPICAL CONNECTIONS

9 command signal from

potentiometer supplied by
command signal from
potentiometer supplied by
external power source, 0 ÷
REMS card - 0 ÷ 5V 2V, 0 ÷ 5V, 0 ÷ 10V

signal command from PLC,

0 ÷ 2V, 0 ÷ 5V, 0 ÷ 10V, 0 command signal from circuit
÷ 20mA of potentiometers

• The connection between REM and the solenoid must be direct POT = 1000 ÷ 5000 Ω
• The common one of return to proportional solenoid must not' be shared between
other valve connections or electrical equipment worker.
Incorrect use of the products described in this catalogue may cause harm to personnel and equipment. The technical information given for each product in this catalogue may be subject to
variation, and the manufacturer reserves the right to make constructional modifications without giving prior notice. Each product presented, its data, features and technical specifications must
therefore be examined and checked by members of the user's staff (possessing suitable technical knowledge) taking into consideration the intended use of product. The user must, in particu-
lar, assess the operating conditions of each product in relation to the application that he intends to use it for, analysing the data, features and technical specifications in view of the proposed
applications, and ensuring that, in use in the product, all of the conditions relating to the safety of personnel and equipment, also in the event of breakdown, are respected.

Brevini Fluid Power - Via Natta, 1 - 42124 Reggio Emilia (Italy) - Tel. +39 0522 5058 - Fax +39 0522 505856
www.brevinifluidpower.com - info@brevinifluidpower.com

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