Continental Hydraulics Installation Manual
Page 1 of 15
CEM-SD-A
CHI 1013477 May 2012
CEM-SD-A
Description:
This closed loop position module is designed to quickly and accurately move hydraulic cylinder
loads. Position and velocity commands are from analog sources. Cylinder position feedback is
from a digital (SSI) source, or an analog source.
Stroke dependent deceleration is used to provide quick and repeatable positioning. Internal ramp
and velocity adjustments allow for easy system tuning.
A wide range of analog signals are accepted. User may select either voltage or current input
mode. These inputs are easily scaled to match system requirements.
Forward and Reverse “jog” inputs allow for manual load control. A user definable window for “in
position” triggers an output for communication to the next machine function.
Output is an analog voltage, 0 to +/- 10v, suitable for directly driving a proportional directional
valve with on board electronics.
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:
Housing
Module
Snaps to 35mm DIN Rail EN 50022
Polyamide PA 6.6
Combustability Class
Protection Class
Material
-20 to +60
UL94
C
Working Temperature
Humidity
Storage Temperature
Emission
C
%
95 (non condensing)
-20 to +70
IP
20
V0
Immunity
Electro Magnetic Compatibility
EN 61000-6-2
EN 61000-6-3
Vibration Resistance
EIC 60068-2-6
vDC
0 to +10
(Speed Input) Impendance
ohm
90k
mA
0 to 20 (typ 4 to 20)
250
Current
Impendance
Resolution
Sample Time
mS
%
0.01
1.0
(Speed Input) Voltage
ohm
Power Supply
vDC 12 to 30 (including ripple)
<100mA
3 (medium action)
mA
A
External Fuse
Consumption
Analog Inputs
Digital Inputs
V
V
ohm
Logical 0 = < 2
Logical 1 = > 10
25k
Impendance
Electrical Connection
Power and Signal
Programming Port
Ground
via DIN Rail
RS-232 3.5mm Stero Jack
8 strips with 4 screw terminals each
Analog Output
vDC
0 to +/- 10
Current
5 (max)
Voltage
mA
Resolution
%
0.024
vDC
0 to + 10
Impendance
ohm
33k
Voltage
Digital Outputs
V
V
Logical 0 = < 2 (50mA max)
Logical 1 = ~ Power Supply
SSI Feedback
RS-422 150k baud
0 to 10
5 (max)
vDC
mA
Monitor
