Specifications

ManualsBrandsEton ManualsAmplifierCLASS D AMPLIFIER

EATON Screw-In Cartridge Valves E-VLSC-MC001-E2 May 2015C-20.A

Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.

Ramp time: Turn clockwise

to increase ramp time

(Only types D/K).

Gain: Turn clockwise to

increase gain.

Deadband compensation:

Turn clockwise to increase

deadband compensation

current.

Dither: Turn clockwise to

increase the dither current.

Terminal 1: Power Supply

18-36V DC, positive.

Terminal 2: Power Supply 0V.

Terminal 3: Command

signal positive

(see ”Operating Data“).

Terminal 4: Command

signal negative

(see ”Operating Data“).

Installation Wiring Options

Installation Data

WARNING

Electromagnetic Compatibility (EMC) - Screened

cables should be used and particular attention paid

to the grounding of the screens as shown in the

above diagrams.

•�

Adjustments

EATON DPPP Catalog October 20112

The gain of the valve is the ratio of the opening of the valve

(or ﬂow rate from it) to the applied voltage input to the power

plug. The ramp rate is the rate at which the power plug allows

the valve to open (or close) when a step voltage input is ap-

plied to the power plug. In many applications this ramp would

be used to gradually accelerate or decelerate an actuator.

Installation precautions to eliminate leaks into the power

plug:

• Use only cables with circular cross-sections and diameter

between 5–10 mm (.2” - .4”)

• Ensure that sealing grommet is present and installed

correctly. It must be forced over the outer jacket of the

cable.

• Ensure that all the gaskets are present and properly

seated.

• Ensure that the plastic cover seats ﬁrmly and correctly on

the center body post.

Connection diagram for CAN version (EHH-AMP-702-N-C-N-3-30)

This procedure describes the adjustments on the Power Plug

for setting the dead-band, gain and ramp rate on a non-feed-

back proportional valve. Proportional valves with over-lapped

spools have a range of spool travel where there is no ﬂow

from the valve. This range of spool motion is called dead-

band. Adjusting the power plug allows the dead-band to be

electronically eliminated (dead-band Compensation) by mak-

ing the spool jump across the dead-band when a small input

signal is applied to the power plug.

Set-up Procedure

e – Cable connection option

1 – PG9 cable clamp

2 – M16 cable clamp

3 – M12 5 pin connector

Features and Beneﬁts

• Integral ampliﬁer provides essential functions for control

of proportional valves.

• Adjustable ramp time, gain, dead band compensation

through potentiometer or RS232/CAN communication (via

software).

• Ease of installation, with reduced cost.

• Fully short-circuit and reverse-polarity protected.

• Differential voltage command signal.

• Options with RS232 and CAN communication.

• Peak and Hold Functionality.

• PG9, M16 cable clamp and M12 connector options.

• Adjustable dither.

• EMC to latest European standards.

• Protection to IP67

• Available with CANOpen communications

Application

• Designed for the control of direct-operated, non-feed-

back, proportional valves where the cost of more com-

plex electronic controls can be avoided.

This product has been designed and tested to meet speciﬁc standards outlined in the European Electromagnetic Compatibility

Directive (EMC) 89/336/EEC, amended by 91/263/EEC, 92/31/EEC and 93/68/EEC, article 5. For instructions on installation

requirements to achieve effective protection levels, see this leaﬂet and the Installation Wiring Practices for Vickers Electronic

Products leaﬂet 2468. Wiring practices relevant to this Directive are indicated by Electromagnetic Compatibility (EMC).

EATON DPPP Catalog October 20118

Warning: Electromagnetic Compatibility (EMC)

Screened cables should be used and particular attention paid to the grounding of the screens as shown in the above diagrams.

Start-Up Procedure:

• Correctly wire the plug and, before mounting it on the

valve solenoid, apply supply voltage to the “power input”

terminals.

• Check for correct plug function by illumination/non-illu-

mination of the LED. The Power on LED (Red) should il-

luminate when the correct supply is given. And the PWM

LED (Yellow) should illuminate when demand applied to

the “signal input” terminal is correct and within limit If

there is a malfunction a new plug must be ﬁtted.

• Switch off power supply and command/input signal and

then install plug on solenoid. Ensure that all seals are

ﬁtted correctly and clamped as the retaining screw is

tightened: this is essential in providing IP67 protection.

• Ensure that the hydraulic system will not cause any er-

ratic movement of actuators, then:

• Switch on power supply again. Repeat LED/function

check. An LED malfunction now indicates a short circuit

at the load.

• Successful completion of these checks means that the

plug and load are ready for use.

Note: For EHH-AMP-7X2-N-C-N-3-30 wiring diagram please refer the con-

nection diagram for the same.

Wiring Diagrams