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FMS CMGZ411 Operating Manual

Digital microprocessor controlled tension control unit
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Operating Manual CMGZ411/421
Digital microprocessor controlled tension control unit
V2.01 05/04 sd
This operation manual is also available in German.
Please contact your local representative.
Diese Bedienungsanleitung ist auch in Deutsch erhältlich.
Bitte kontaktieren Sie die Vertretung im zuständigen Land.
© by FMS Force Measuring Systems AG, CH-8154 Oberglatt – All rights reserved.

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Summary of Contents for FMS CMGZ411

  • Page 1 This operation manual is also available in German. Please contact your local representative. Diese Bedienungsanleitung ist auch in Deutsch erhältlich. Bitte kontaktieren Sie die Vertretung im zuständigen Land. © by FMS Force Measuring Systems AG, CH-8154 Oberglatt – All rights reserved.

  • Page 2: Safety Instructions

    Operating Manual CMGZ411/421 1 Safety Instructions Danger Some contacts of the 230VAC version are under 230V tension! Mortal danger! Disconnect power supply before open the housing! Danger The tension controller can operate drives or brakes with high performance. It has no built-in emergency stop function.

  • Page 3: Table Of Contents

    Table of the application versions ....................8 Determination of the machine configuration ................9 Wiring....................... 14 Wiring diagram of the web tension controller CMGZ411 ............14 Wiring diagram of the web tension controller CMGZ421 ............15 Wiring diagram CMGZ411.E / CMGZ421.E .................15 Initial operation of measuring amplifier............17 Initial operation of measuring amplifier CMGZ411 ...............17...

  • Page 4: Description

    Correction input: For applications with continuously varying wrap angles (i.e. at winders/unwinders directly), the CMGZ411 provides a 0..10V input for the continuous correction. The correction signal usually is obtained from a PLC or from a potmeter that is mounted at the moving section of the machine. Correction can be set to linear or cosine function.

  • Page 5: Block Diagram Cmgz411

    Operating Manual CMGZ411/421 3.3 Block Diagram CMGZ411 C411000e 3.4 Block Diagram CMGZ421 C421000e...

  • Page 6: Controller Theory

    - Force measuring bearings or Force measuring rollers for mechanical / electrical conversion of the force - Amplifier providing the excitation and the amplifier for the mV signal of the sensors (integrated in CMGZ411). - Control unit for the comparison of tension reference and feedback value and the PID controller.

  • Page 7: The 4 Quadrants In Drive Technology

    Operating Manual CMGZ411/421 5 The 4 quadrants in drive technology The four quadrants in drive technology refer to the speed/torque diagram shown. The x axis shows speed and the y axis shows torque. The first quadrant shows positive speed and positive torque and this results in positive power, eg.

  • Page 8: Applications

    Operating Manual CMGZ411/421 7 Applications 7.1 Table of the application versions With the table and the following principle images, the machine configuration is determined. C400000e...

  • Page 9: Determination Of The Machine Configuration

    Operating Manual CMGZ411/421 7.2 Determination of the machine configuration C400001e...
  • Page 10 Operating Manual CMGZ411/421 C400002e...
  • Page 11 Operating Manual CMGZ411/421 C400003e...
  • Page 12 Operating Manual CMGZ411/421 C400004e...
  • Page 13 Operating Manual CMGZ411/421 C400005e...

  • Page 14: Wiring

    The digital inputs are activated by applying an external 24VDC source. The digital outputs (open collector, gnd is switched) refer also to this 24VDC source. The digital inputs and outputs are galvanic insulated from the other circuitry. 8.1 Wiring diagram of the web tension controller CMGZ411 C411001e...

  • Page 15: Wiring Diagram Of The Web Tension Controller Cmgz421

    Touch earthed metal part to discharge static electricity before removing operation panel! Danger: Some contacts of the 230VAC version are under 230V tension! Mortal danger! Disconnect power supply before open the housing! diagram: terminal board of CMGZ411.E / 421.E E411001e...
  • Page 16 Operating Manual CMGZ411/421 Terminal assignment CMGZ411.E Terminal assignment CMGZ421.E Wire colour # Wire colour # Connection Connection Sensor 1 / channel A Sensor 1 / channel A + Excitation yellow + Excitation yellow + Signal brown + Signal brown – Signal white –...

  • Page 17: Initial Operation Of Measuring Amplifier

    • Check, if a positive value is displayed when loading the first sensor in measuring direction. If not, change terminals z6 / z8 (2 / 3 with CMGZ411.E) at the controller. • Connect the second sensor • Check, if a positive value is displayed when loading the first sensor in measuring direction.

  • Page 18: Initial Operation Of Measuring Amplifier Cmgz421

    Operating Manual CMGZ411/421 For all formulas, γ will be the wrap angle and δ will be the angle between measuring web axis and resulting force F 9.2 Initial operation of measuring amplifier CMGZ421 Simulating method (recommended) The following operating instructions describe operation and calibration in the machine; the web tension can be simulated by a weight.

  • Page 19: Correction Input (Cmgz411)

    Operating Manual CMGZ411/421 9.3 Correction input (CMGZ411) The correction input (terminals d6 / d8 resp. 7 / 8) is needed to change the gain value defined. Under parameter „Correction input“, it is possible to select a linear or a cosine correction. This parameter is normally used if the wrap angle changes continuously.

  • Page 20: Initial Operation Of Pid Controller

    Operating Manual CMGZ411/421 10 Initial operation of PID controller 10.1 Parametrization of the PID controller • Set the parameters „Machine configuration“ and „Output configuration“ as needed Reference value given by potentiometer (analogically) • Connect potentiometer or other source as shown in the wiring diagram •...

  • Page 21: Enable Controller

    10.3 Enable controller After switching the CMGZ411/421 on, the controller is locked. The output signal is zero if a drive is used, regardless of tension reference and feedback. If a brake is used, the output signal will be the start torque defined in parameter „start speed“.

  • Page 22: Setting Of Tension Reference

    Operating Manual CMGZ411/421 10.5 Setting of tension reference By pressing the key "REFERENCE" for 3 seconds, the actual tension tension reference is shown in the display. By pressing the arrow keys, the tension reference can be changed. The value shown in the display is taken for the control loop continuously.

  • Page 23: Wiring Diagram Of The Rs232 Interface

    10 characters type, fixed < Typ > <Version> . . <S > 10 characters version, fixed 4 characters serial number, fixed DAKT<CR> XXXXX<CR> read actual diameter (CMGZ411) DIFF<CR> DIFY<CR> / DIFN<CR> alarm controller error DIFR<CR> DIFRXXXX.X<CR> alarm controller error in % ERR?<CR>...

  • Page 24: Write Parameters

    Operating Manual CMGZ411/421 LOCK<CR> PACC<CR> / FAIL<CR> disable controller, lock REMR<CR> PACC<CR> / FAIL<CR> turn off remote mode REMS<CR> PACC<CR> / FAIL<CR> turn on remote mode SOLLXXXXX<CR> PACC<CR> / FAIL<CR> write new tension reference into RAM SRMP<CR> XXXXX<CR> read actual tension reference STEL<CR>...

  • Page 25: Read Parameters

    WP32XX.XX<CR> PACC<CR> / FAIL<CR> start speed WP33XXX.X<CR> PACC<CR> / FAIL<CR> start limit WP34X<CR> PACC<CR> / FAIL<CR> synchronisation-stop WP35XXX.X<CR> PACC<CR> / FAIL<CR> line speed overlay (CMGZ411) WP36XXXX<CR> PACC<CR> / FAIL<CR> Line speed tacho (CMGZ411) WP37XXXX<CR> PACC<CR> / FAIL<CR> winder drive (CMGZ411) WP38XXXX<CR>...
  • Page 26 RP32<CR> XX.XX<CR> start speed RP33<CR> XXX.X<CR> start limit RP34<CR> X<CR> synchronisations-stop RP35<CR> XXX.X<CR> line speed overlay (CMGZ411) RP36<CR> XXXX<CR> Line speed tacho (CMGZ411) RP37<CR> XXXX<CR> winder drive (CMGZ411) RP38<CR> XXXX<CR> tacho diameter (CMGZ411) RP39<CR> XXXX<CR> center diameter (CMGZ411) RP40<CR>...

  • Page 27: Parametrization

    Operating Manual CMGZ411/421 12 Parametrization 12.1 Parameter list CMGZ411 PARAMETER Unit Default Actual Find offset feedback Calibration feedback Calibration gain 1 feedback Calibration gain cosine at U1 Calibration gain cosine at U2 Calibration gain cosine at U3 Value offset-feedback [Dig]...

  • Page 28: Parameter List Cmgz421

    Operating Manual CMGZ411/421 12.2 Parameter list CMGZ421 PARAMETER Unit Default Actual Find offset channelA Calibration feedback channel A Find offset channel B Calibration feedback channel B Calibration gain 1 channel A Calibration gain 1 channel B Value off.-feed. chan. A...

  • Page 29: Description Of The Parameters

    ↵ key. The gain factor adjusted can be seen under Parameter „Value gain feedback“. Gain switching is activated by digital input 3 (terminal b6). Calibration gain cosine at U1 CMGZ411 Purpose: This parameter allows to adjust the display value to a value which is corresponding to the loaded weight (= web tension) when cosine correction is active.The microprocessor calculates a gain...
  • Page 30 This parameter stores the sensor’s force unit. Range: Default: Sensitivity Purpose: To get accurate force values in the display, the controller has to know the sensitivity of the force sensor. FMS has 1.8mV/V as standard. Range: Default: Increment: Unit: [mV/V]...
  • Page 31 Operating Manual CMGZ411/421 1 or 2 sensors CMGZ411 Purpose: To get accurate force values in the display, the controller has to know if a roller is supported by one or two force sensors. Range: Default: Increment: Unit: Lowpass-output Purpose: The control unit provides a low-pass filter for the tension feedback to suppress noise caused by unbalanced rollers or interference.
  • Page 32 Operating Manual CMGZ411/421 Limit value 1 Purpose: Actual threshold of limit value 1. The limit value is stored in the same units as the force feedback is shown in the display. Range: -9999 +9999 Default: Increment: Unit: [N/kN] Limit value 2 Min./Max.
  • Page 33 Operating Manual CMGZ411/421 Integral component I Purpose: The time stored here is responsible for the integral component. It is stored independently of proportional or derivative component. Range: 0.01 100.00 Default: 1.00 Increment: 0.01 Unit: Derivative component D Purpose: The time entered under this parameter is responsible for the derivative component. It is stored independently of proportional or integral component.The derivative component is only active if...
  • Page 34 If the synchronisation-stop is active, the controller will control until output has reached 0V. Range: No, Yes Default: Line speed overlay CMGZ411 Purpose: This parameter gives the percentage quota of the controller output which will be overlayed to the line speed. Common value is 10%. Range: 100.0...
  • Page 35 1000 Increment: Unit: Tension reduction CMGZ411 Purpose: The CMGZ411 provides facilities to reduce tension across the changing bobbin diameter. Under this parameter, the reduction is selected as linear, square or square root function. Range: none, linear, quadratic, root Default: root...
  • Page 36 „correction input“ is „linear“. Range: -9.999 9.999 Default: 1.000 Increment: 0.001 Unit: Gain cosine at U1, U2, U3 CMGZ411 Purpose: Stores the value calculated with parameter „Gain cosine at U1 / U“ / U3“. Range: 0.001 9.999 Default: 1.000 Increment: 0.001...
  • Page 37 Operating Manual CMGZ411/421 Find offset feedback channel A resp. channel B CMGZ421 Purpose: By pressing the enter key for 3 seconds, the actually measured value is stored as an offset value. This function is used to compensate the weight of the roller and of the material.
  • Page 38 Operating Manual CMGZ411/421 Scaling instrument A+B CMGZ421 Purpose: With a setting of 1.00, the analogue output (0...10V) provides the nominal voltage at nominal tension force. By decreasing the scale parameter, the nominal voltage is decreased; if the scale parameter is increased, nominal voltage is also increased.

  • Page 39: Trouble Shooting

    Operating Manual CMGZ411/421 13 Trouble shooting 13.1 Trouble shooting CMGZ411 Error Cause Corrective action Err1 A/D-converter gets Channel A is wrongly connected signals < -9.7mV (change pins z6 / z8 resp. 2 / 3) Err2 A/D-converter gets Channel A is wrongly connected signals >...

  • Page 40: Technical Data

    DIN 41612 Type F b+d+z DIN 41612 Type F b+d+z Temperature range 0...50°C 0...50°C Weight 0.22kg 0.22kg FMS Force Measuring Systems AG FMS Italy FMS USA, Inc. FMS UK Aspstrasse 6 Via Baranzate 67 2155 Stonington Ave. Suite 119 Highfield, Atch Lench Road...

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Cmgz421

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