ELECTRONIC REGULATORS FOR THREE OR MORE SOLENOIDS: MDE-V90

ELECTRONIC REGULATORS FOR THREE OR MORE SOLENOIDS: MDE-V90

- Categories : Hydraulic Master blog

Double electronic PWM A+B regulator for Sauer-Danfoss Series 90 pumps

DESCRIPTION

The electronic regulator MDE-V90 can control two Sauer-Danfoss pumps series 90 with option KA or KP.

The input signals can come from two 1kOhm potentiometers supplied directly by +5V regulator output (or by supply voltage in ratiometric version).

To verify the interruption of a wire or the a potentiometer failure it is recommended to connect, in series to each potentiometer, two resistors, each with a value of about 10% of the potentiometer's value to limit the range of the command signal between 0.5V and 4.5V.

MDE-V90 regulator can also control directly an optional safety valve (dump valve) every time a pump is activated.

The two channels for the two pumps, in the "double" version, are completely independent (except the ENABLE signal which is the same for both pumps).

INPUTS

- n° 2 analog input, 2.5V in rest position, with range from 0V÷ 5V (recommended 0.5V ÷ 4.5V with range control);

or range 25%-50%-75% of supply voltage (ratiometric version - Danfoss signal).

- n° 1 ON/OFF input to enable outputs (unique for the two pumps).

OUTPUTS

- n° 2 couples of 200Hz PWM outputs to command the two proportional coils of the pump series 90;

- n° 1 ON/OFF output for an optional DUMP VALVE, supplied when at least one pump is activated;

- n° 1 +5V stabilized output to supply potentiometers (maximum output current = 50 mA).

MAIN FEATURES

- Indipendent minimum and maximum currents calibration for each PWM output signal;

- The validity of analog input signal range, dead band and useful programmable range can be controlled to ensure a

greater safety during the operations;

- A power output for the dump valve is activated every time a proportional output is switched on (for this output is

possible to set a switch off delay to prevent pressure peaks on the hydraulic circuit);

- Two LEDs provide informations on the operativity of the regulator and help in troubleshooting indicating the fault type

with a fixed number of flashes;

- Unique supply voltage from 10 to 30 Vdc;

- 24 pins fast socket connector IP68;

- A serial port with proprietary protocol can be used for calibration using a programming keyboard PRG2 (only current

calibration) or a Personal Computer (with special serial adapter AIS and Sepsim Windows® software) for complete

control of operational parameters;

- a "single" version of the regulator is also available to command a single pump.

Double electronic PWM A+B regulator for Sauer-Danfoss series 90 pumps

CONNECTIONS

                                           male connector 24 pins (view from side pin)

                                                                           programming connector               

ORDERING CODES

24 pins flying female connector kit with crimping contacts, caps, rubber protection and programming connector

Code: PCVF241

Serial programming keyboard PRG2

Code: PPRG2

Serial interface adapter (AIS) for communication with PC (software Sepsim for Windows® included)

Code: PISP

TECHNICAL CHARACTERISTICS

If you are interested in this solution please contact with us

 shop@hydraulic-master.com 

We will prepare offer for you.

Share this content

Add a comment