Continental Hydraulics CEM-AC-E0-A Installation Manual Download Page 1

                    Continental Hydraulics Installation Manual                                

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CEM-AC-A

CHI 1013472    April 2012

CEM-AC-E0-A
CEM-AC-E1-A

Description:

This power amplifier mounts directly to a single solenoid proportional valve coil with a DIN style
connector, and will drive up to 2.5A.  It is suitable to control current to either a proportional flow or
pressure valve coil.
A wide range of analog signals are accepted.  There are two product choices for input, one
accepts voltage commands, the other accepts current commands.  These inputs are easily scaled
to match system requirements.  Two independent ramps are available for acceleration and
deceleration control.
Min and Max output current are adjustable.  Output characteristics can be independently
customized. The module is disabled if the coil outputs are shorted or open.  If command current is
outside of the proper range, the module is also disabled.  PWM and Dither are user adjustable.
This module is easily adapted to a variety of system requirements. All variables are user adjusted
with easy to use software on your Microsoft Windows laptop.  Control variables are stored in non-
volatile memory internal to the module.  All variables can be read by the laptop, and reproduced
exactly on other modules.

Technical Data:

Solenoid Output

A

A

1.2

2.5

PWM Frequency

60 to 2650

60 to 400

0 to 30

0.17

Dither Frequency

Dither Amplitute

Sample Time

Hz

Hz

%

mS

Software Selectable

Housing

Housing

Attaches to DIN 43650 coil

Polyamide PA

Combustability Class

Protection Class

Material

-20 to +60

UL94

C

Working Temperature

Humidity

Storage Temperature

Emission

C

%

95 (non condensing)

-20 to +70

IP

65 (with gasket)

V1

Immunity

Electro Magnetic Compatibility

EN 61000-6-2

EN 61000-6-3

Vibration Resistance

EIC 60068-2-6

vDC

0 to +10  (voltage version)

Impendance

ohm

90k

mA

4 to 20  (current version)

390

Current

Impendance

Resolution

Sample Time

mS

%

<0.1

1.0

Voltage

ohm

Power Supply

vDC 12 to 30   (including ripple)

<100mA + solenoid

3 (medium action)

mA

A

External Fuse

Consumption

Analog Input

Electrical Connection

Power and Signal

Communication

Ground

via DIN coil pin

LIN bus

M12  5 pin male key style A

Summary of Contents for CEM-AC-E0-A

Page 1: ...riety of system requirements All variables are user adjusted with easy to use software on your Microsoft Windows laptop Control variables are stored in non volatile memory internal to the module All v...

Page 2: ...0v or 4 to 20 mA Communication Gray Ground via DIN plug Command Return Black CEM AC E0 voltage input CEM AC E1 current input u c w Wiring Example 3 1 2 5 4 communications 12 30vDC Ground 0 to 10v Grou...

Page 3: ...ference such as motor controllers and high power contactors Power Supply This amplifier module is designed to operate on DC power from a regulated power supply ranging from 12 to 30 volts Match valve...

Page 4: ...ule has a software adjustable dead zone near zero termed TRIGGER With a command in this near zero area neither solenoid will be energized Trigger is intended to keep small noise signals on the analog...

Page 5: ...ages must have a connection to Pin 3 2 3 4 24v 1 3 Power Supply Gnd Line AC DC Gnd CEM AC E0 10v potentiometer 5k ohm typical Gnd External Voltage Reference Command input with current The CEM AC E1 ca...

Page 6: ...ult Setting POL to will change the 0 to 100 valve operation to 100 to 0 Adjustment of SENS internal monitoring function SENS parameter has two options ON default and OFF The CEM AC E0 is able to monit...

Page 7: ...hin this 20v range A B allows for a decimal scaling factor These two numbers are chosen to provide a gain to the input signal A and B are positive or negative whole numbers up to 10000 Default A 1000...

Page 8: ...are actually time to ramp for a 0 to 100 signal change For example a value of 2000 will give a ramp time of 2 seconds for a 0 to 100 step command The ramp time will be 1 second for a step command of 0...

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