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Continental Hydraulics CEM-RA – Dual Channel Ramp Amplifier

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Continental Hydraulics are at the forefront of engineering hydraulic solutions for over 50 years-a testament to a long-standing reputation built upon your challenges and opportunities. A worldwide leader- a one-stop-shop for valves, pumps, power units and proportional products-all assembled in the USA.

The Continental Hydraulic CEM-RA ramp amplifier drives either single or dual solenoid proportional valve coils up to 2.6A. It is suitable to control current to either proportional directional, flow, or pressure valve coils. This module accepts 4 independent switch inputs, each of which has independently adjustable speed and ramp controls.
Inputs are additive for up to 15 unique preset speed and ramp profiles.
In addition to the switch inputs, an analog input is also available. A wide range of analog signals are accepted.
This input is easily scaled to match system requirements. Analog command can be used in addition to, or independent from, switch input speeds.
Min and Max outputs are adjustable. Output characteristics can be independently customized. The module is disabled if the coil outputs are shorted or open. 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

Product Specification

Description Units
Power Supply VDC 12 to 30 vDC
Power Supply Consumption <100mA + Solenoid
Power Supply External Fuse 3 A (Medium Action)
Analog Input Voltage 0 – +10 vDC
Analog Input Impendance 90 K Ohms
Analog Inputs Resolution 0.024 %
Analog Input Reference Voltage 10v (10mA Max)
Digital Inputs Logical 0 = <2 / Logical 1 =>10
Digital Input Impendance 25k Ohm
Digital Outputs Logical 0 = <2 (50mA max) / Logical 1 = ~ Power Supply
Electrical Connection Programming Port RS-232 3.5 mm Stereo Jack
Electrical Connection Power and Signal 8 Strips with 4 screw terminals each
Ground Via Din Rail
Solenoid Outputs 1.0 A / 1.6 A / 2.6 A (Software Selectable)
PWM Frequency 100 to 2650 Hz
Dither Frequency 60 to 400 Hz
Dither Amplitude 0 to 30 %
Sample Time 0.17 mS
Housing Module Snaps to 35mm DIN Rail EN 50022
Housing Material
Polyamide PA 6.6
Housing Combustibility Class UL 94 V0
Housing Protection Class IP 20
Housing Working Temperature -20 to +60 °C
Housing Storage Temperature -20 + 70 °C
Housing Humidity 95 % (non condensing)
Electro Magnetic Compatibility Emission EN 61000-6-2
Electro Magnetic Compatibility Immunity EN 61000-6-3
Electro Magnetic Compatibility Vibration Resistence EIC 60068-2-6

Continental Hydraulics – CEM – Open and Closed Loop Control Modules Data Sheet

Continental Hydraulics – CEM – Open and Closed Loop Control Modules Setup Software

Continental Hydraulics – CEM – Open and Closed Loop Control Modules User Manual

Additional Information


Continental Hydraulics

Electronic Control Modules

Axes Positioning


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