Continental Hydraulics CEM-BPS-B Manuel utilisateur

Continental Hydraulics Installation Manual

Page 1 of 20 CEM-BPS-B CHI 1020813 Jan 2016

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.

Continental Hydraulics Installation Manual

Page 2 of 20 CEM-BPS-B CHI 1020813 Jan 2016

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

Continental Hydraulics Installation Manual

Page 3 of 20 CEM-BPS-B CHI 1020813 Jan 2016

Technical Data

Supplyvoltage [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 resolution 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

PA6.6 polyamide

Flammabilityclass 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 x4-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

Continental Hydraulics Installation Manual

Page 4 of 20 CEM-BPS-B CHI 1020813 Jan 2016

Functional Diagram:

Continental Hydraulics Installation Manual

Page 5 of 20 CEM-BPS-B CHI 1020813 Jan 2016

Typical Schematic Example:

Typical Wiring Example:

Continental Hydraulics Installation Manual

Page 6 of 20 CEM-BPS-B CHI 1020813 Jan 2016

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.

Continental Hydraulics Installation Manual

Page 7 of 20 CEM-BPS-B CHI 1020813 Jan 2016

Terminal Identification

Connection Supply

Terminal 3 Power supply connection (see technical data)

Terminal 4 0 V (GND) connection

Connection Analog signals

Terminal 13 Actual value (X1), signal range 0-10 V or 4-20mA

Terminal 14 Actual value (X2), signal range 0-10 V or 4-20mA

Terminal 11 0 V (GND) connection for analog INPUT signals

Terminal 12 0 V (GND) connection for analog OUTPUT signals

Terminal 15/16 Valve control output signal

Terminal 15/12 Type of OUTPUT signal and polarity (Parameter SIGNAL:U)

Connection Digital inputs and outputs

Terminal 8

Enable input:

General enabling of outputs and the application

Terminal 7

START (RUN) input:

ON: The Synchronization controller is active

OFF: The Synchronization controller is not active.

Auto setup Terminal 6 can be used

Terminal 6

AUTO SETUP: input

The offset error between the two sensors is automatically

measured and stored as a correction value. The input must be

activated for longer than 1 second.

Terminal 5

POLARITY input:

The polarity of the control loop can be switched on this input

Terminal 1

READY output:

ON: The module is enabled with no discernable errors

OFF: Enable (Terminal 8) is disabled or an error (sensor or

internal error) has been detected

Terminal 2

STATUS output:

ON: (CD window) The axis are within the set deviation window

OFF: (CD window) The axis are outside the set deviation window

Continental Hydraulics Installation Manual

Page 8 of 20 CEM-BPS-B CHI 1020813 Jan 2016

Steps for communication and configure a new application:

All parameters are adjusted using VEA-BUSB programming cable and CHI-PC Microsoft

Windows application.

1. Mount the module in a suitable location

2. Connect the power supply and valve solenoids

3. Down load and open the GUI program (www.continentalhydraulics.com/wp-

content/uploads/2015/01/setup-CEWMPC-10-v3.5.0.zip )

4. Connect to Laptop via USB to USB Type B communication cable.

5. Open the Options and check setting make sure the correct com port, full-Duplex and

57.6K Baud rate are selected.

Continental Hydraulics Installation Manual

Page 9 of 20 CEM-BPS-B CHI 1020813 Jan 2016

Commissioning:

Step Task

Installation

Install the device in accordance with the circuit diagram. Ensure it is wired correctly

and that the signals are well shielded. The device must be installed in a protective

housing (control cabinet or similar).

Switching on for the

first time

Ensure that no unwanted movement is possible in the drive (switch off the

hydraulics). Connect an ammeter and check the current consumed by the device. If it

is higher than specified there is an error in the wiring. Switch the device off

immediately and check the wiring.

Once the power input is correct the PC (notebook) should be connected to the serial

interface. Please see the CHI-PC Steps for communication and configure a new

application for how to set up communication.

Further commissioning and diagnosis are supported by the operating software.

Now set up the following parameters (with reference to the system design and

circuit diagrams):

The STROKE, SENSOR SETTINGS and DECELERATION.

Parameterize specific settings for the control element (MIN for deadzone

compensation and MAX for maximum velocity).

Pre-parameterization is necessary to minimize the risk of uncontrolled movements.

Control signal

Check the control signal with a voltmeter. The control signal (PIN 15 to PIN16) lies in

the range of ± 10 V. In the current state it should show 0 V. Alternatively, if current

signals are used, approx. 0 mA should flow (PIN 15 to PIN 12).

Switching on the

hydraulics

The hydraulics can now be switched on. The module is not yet generating a signal.

Drives should be at a standstill or drift slightly (leave its position at a slow speed).

Activating ENABLE

CAUTION! Drives can now leave their position and move to an end position. Take

safety measures to prevent personal injury and damage.

Activating START

With the start signal the Auto setup signal is locked, so that there may be no

unintentional offset settings. This signal sends the output signal of the controller to

the output, often the START input is connected to the ENABLE input in parallel.

Optimize controller

Now optimize the controller parameters according to your application and your

requirements.3

Setting up

communication

Pre-parameterization

Continental Hydraulics Installation Manual

Page 10 of 20 CEM-BPS-B CHI 1020813 Jan 2016

Parameter Overview:

Group Command Default Unit Description

Basic parameters

LG EN - Changing language of help texts

MODE STD - Parameter view (STD / EXP)

SENS ON - Malfunction monitor

INPOS 200 μm Size of the control deviation window

Input signal adaptation

SYS_RANGE 100 mm Axes working stroke

Sensor scaling

SIGNAL:X1 U0-10 Type of input

N_RANGE:X1 100 mm Sensor nominal length

OFFSET:X1 0 μm Sensor offset

SIGNAL:X2 U0-10 - Type of input

N_RANGE:X2 100 mm Sensor nominal length

OFFSET:X2 0 μm Sensor offset

Closed loop control parameters

D:A 25 mm Deceleration strokes

D:B 25 mm

PT1 1 ms PT1 time constant

CTRL SQRT1 - Control characteristic

Output signal adaptation

MIN:A 0 0.01% Deadband compensation

MIN:B 0 0.01%

MAX:A 10000 0.01% Output scaling

MAX:B 10000 0.01%

TRIGGER 200 0.01% Deadband compensation trigger point

OFFSET 0 0.01% Output offset value

SIGNAL:U U+-10 - Type of output signal and polarity

Table des matières

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