Continental Hydraulics CEM-BPS-B Installation Manual
Continental Hydraulics Installation Manual
CEM-BPS-B
Description:
This closed loop position module has been developed for controlling hydraulic synchronization
systems. The typical synchronization accuracy is about 0.1% to 1% of the sensor length
(depending on the hydraulic system). Proportional valve with integrated or external electronics
can be controlled with the differential output. Output is an analog signal of either voltage, 0 to +/10v or current 4-20mA.
This module is designed for use within a flow divider circuit. A flow divider (valve or gear pump)
will synchronize the axis but with limited accuracy. A proportional valve working in parallel to the
flow divider is compensating the flow error in one or both cylinders. The flow rate of this valve
should be in twice range of the flow error of the flow divider. This kind of synchronization control
is extremely stable and simple to use.
With the AUTO SETUP input feature, the offset error between both sensors can be measured
and compensated automatically. For this setup, the cylinders must be driven at the top or bottom
end.
The internal profile generation is optimized for stroke-dependent deceleration control mode. The
controller and the controller settings are factory preset to typical requirements and can be
optimized for the control behavior as required. The optimized control function offers a high degree
of precision together with the high resolution of the analog signals ensures good positioning
behavior. A wide range of analog signals are accepted. User may select either voltage or current
input mode.
This module is easily adapted to a variety of system requirements. All variables are user adjusted
with easy to use CHI-PC 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.
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Continental Hydraulics Installation Manual
Table of Contents
Information Description Page #
Technical Data - ……………………………………….…………………….………..…………… 3
Functional Diagram …….…….…………………….……………………………………………... 4
Typical Schematic Example……………………………………………………………………….. 5
Wiring Example…………………………………………………………………………………… 5
Dimensions …………………………………………….…………………………………………… 6
Module Mounting Location ………………………………………….…………………………….. 6
Power Supply ………………………………………………………………………………….…… 6
Wiring ………..……………………………………………………………………………………… 6
Terminal Identification …………………………………………………………………………….. 7
Steps to install and configure a new application ……………………….………………………. 8
Commissioning …………………………………………….…………………………..………….. 9
Parameter Overview………………….……………………………………………………………. 10
LED Indications …………………………………………………………………………………….. 11
Command Parameter Descriptions
LG (Language)…………………………………………………………………………… 12
MODE……………………………………………………………………………………... 12
SENS ……………………..……………………………………………………. ………... 12
ENABLE…………………………………………………………………………………. 13
START (RUN)…………………………………………………………………………… 13
INPOS ……………………………………………………………………………………. 13
SYS_RANGE ……………………………………………………………………………. 13
SIGNAL ………...………………………………………………………………………… 14
N_RANGE:X …………………………………………………………………………….. 14
OFFSET:X ……………………………………………………………………………….. 14
Using SYS_RANGE, N_RANGE and OFFSET ……………………………………… 15
D:A / D:B …………….…………………………………………………………………… 16
PT1 ……………………………………………………………………………………….. 16
CTRL ……………………………………………………………………………………… 17
MIN:A / MIN:B ……………………………………………………………………………. 18
MAX:A / MAX:B …………………………………………………………………………. 18
TRIGGER ………………………………………………………………………………… 18
OFFSET ………………………………………………………………………………….. 19
SIGNAL:U ………………………………………………………………………………… 19
Process Data (Monitoring) ……………………………………………………………………….. 20
Troubleshooting …………………………………………………………………………………… 20
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Continental Hydraulics Installation Manual
Technical Data
Supply voltage [VDC] 12… 30 (incl. ripple)
Current requirement [mA] <100
External protection [A] 1 medium time lag
[V] logic 0: <2
[V] logic 1: >10
Input resistance [kOhm] 25
Digital outputs [V] logic 0: <2
[V] logic 1: >12 (50 mA)
Analogue inputs (sensor and
demand value signal)
[V] 0… 10; 25 kOhm
Signal resolution [mA] 4… 20; 240 Ohm
[%] 0.003 incl. Oversampling
(maximum res olution 1 μm)
Analogue outputs
Voltage [V] 2 x 0… 10; differential output
[mA] 10 (max. load)
Signal resolution [%] 0.006
Current [mA] 4… 20; 390 Ohm maximum load
Signal resolution [%] 0.006
Controller sample time [ms] 1
Serial interface
USB in RS 232C Emulation (9600…
57600 Baud, 1 stop bit, no parity,
echo mode)
Housing Snap-on module to EN 50022
PA 6.6 polyamide
Flammability class V0 (UL94)
Weight [kg] 0.17
Protection class IP20
Temperature range [°C] -20… 60
Storage temperature [°C] -20… 70
Humidity [%] < 95 (non-condensing)
Connections USB-B
4 x 4-pole terminal blocks
PE: via the DIN mounting rail
EMC EN 61000-6-2: 8/2005
EN 61000-6-4: 6/2007 ; A1:2011
Digital inputs
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Continental Hydraulics Installation Manual
Functional Diagram:
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Continental Hydraulics Installation Manual
Typical Schematic Example:
Typical Wiring Example:
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Continental Hydraulics Installation Manual
Dimensions:
Module Mounting Location:
This module is to be mounted in a cabinet for protection from the local environment.
Ensure there is adequate free space around the module to allow for cooling air flow.
This module is designed to snap onto an industry standard 35mm DIN rail.
Do not mount near other modules that emit high power electrical interference, such as motor
controllers and high power contactors.
Power Supply:
This module is designed to operate on DC power from a regulated power supply ranging from 12
to 30 volts. Match valve solenoid voltage rating to power supply, typically 12 or 24 volts.
A 1 amp medium action fuse is recommended in the “+” power supply line.
Wiring:
The module should be installed and wired in accordance with the documentation bearing in mind
EMC principles. If other consumers are operated with the same power supply, a star-shaped
ground wiring scheme is recommended. The following points must be observed when wiring:
The signal cables must be laid separately from power cables.
Analogue signal cables must be shielded.
All other cables must be shielded if there are powerful interference sources (frequency
converters, power contactors) and cable lengths > 3 m. Inexpensive SMD ferrites can be
used with high-frequency radiation.
The shielding should be connected to PE (PE terminal) as close to the module as
possible. The local requirements for screening must be taken into account in all cases.
The shielding should be connected at both ends. Equipotential bonding must be provided
where there are differences between the connected electrical components.
If having longer lengths of cable (> 10 m), the diameters and screening measures should
be checked by specialists (e. g. for possible interference, noise sources and voltage
drop). Special care is required if using cables of over 40 m in length, and if necessary the
manufacturer should be consulted.
Wire size is chosen to provide an acceptable voltage drop between the module and the valve
solenoid.
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