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Lust VF1000M TR Manual

Smartdrive +- 10 v reference input technical controller
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S
MART
EN
Important: This description does not replace the VF1000M and
D
- VF1000M/VF1000L,
RIVE
PI
VF1000L Operation Manuals. In commissioning, and
when performing other work on the inverter, be sure to
follow the instructions, and in par ticular the safety
instructions, given in the relevant manual.
Type description
TR/S58
± 10 V Reference Input
Technical Controller
VAL
stop
return
TR
From page 2
S58
From page 14
Hz
start
enter
SM AR T
C A R D
1

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Summary of Contents for Lust VF1000M TR

  • Page 1 TR/S58 - VF1000M/VF1000L, MART RIVE ± 10 V Reference Input Technical Controller stop start return enter SM AR T C A R D Important: This description does not replace the VF1000M and VF1000L Operation Manuals. In commissioning, and when performing other work on the inverter, be sure to follow the instructions, and in par ticular the safety instructions, given in the relevant manual.
  • Page 2 - VF1000M/VF1000L,TR MART RIVE Overview ± 10 V reference input (FSIN2): • Analog input with automatic direction of rotation selection • Additional offset input for 1st analog input (FSIN) • High-resolution analog input (16-bit) Technical controller: • PI controller for process control, e.g. pressure, temperature, flow, winding drive, etc.

  • Page 3: Electrical Connections

    Electrical Connections The type TR inverters are fitted with an additional terminal strip (X10). The terminal assignment and position sketches are shown below. X10/ Label Description Termination point for protective earth Frame reference point for 10 V reference FSIN2 ±10 V input (2nd analog input) 10 V reference for reference input Position sketches: VF1000M,TR...

  • Page 4: Technical Specification

    Technical Specification Connection Spezification FSIN2 Input range + 10 V ... - 10 V (isolated) Resolution 16 Bit Input resistance 150 kΩ Dielectric strength ± 30 V Sampling time 8 ms Reference voltage 10 VDC ± 3 % Load capacity 15 mA max., short-circuit-proof Terminal X10...
  • Page 5 Setting: 04-FSSEL = 24 The control input STR is F(Hz) the hardware enable. The direction of rotation is automatically selected. -1,0 -0,15 FSIN 2 +1,0 +0,15 F(Hz) Setting: 04-FSSEL = 26 FMAX STR = active FMAX FSIN FMAX STL = active FMAX FSIN 2 = 0 ...

  • Page 6: Technical Controller

    Technical Controller The technical controller in the VF1000M and VF1000L controls process variables such as pressure, temperature, flow rate, jump, etc. It is not suitable for dynamic process variables such as rotational speed. 3.2.1 Actual Value Channel 76-CONFI Function 0 VAL Technical controller inactive, function of FSIN2 with 04-FSSEL = 24/25/26 Analog input FSIN...

  • Page 7: Block Diagram

    3.2.3 Block Diagram Reference 76-CONFI = 0 04-FSSEL 76-CONFI = 0 Filter PI controller 12-F 84-FIST 90-ABW 60-FOUT 83-FST2 77-KP, 78-TN 76-CONFI Scaling Actual value y/Hz 3.2.4 Combination Options of the Reference and Actual Value Channels Reference Actual value 76-CONFI = 04-FSSEL = 9 - 16 17 - 22...
  • Page 8 Controller Parameters The parameters set out below are available for setting and optimization of the controller: Parameter Manipulating VAL Function Range 77-KP 0.1 ... 10 Gain (P-component), adjustable online 78-TN 0 ... 65 [s] Lag time (I-component), adjustable online 30-FF7 0 ...
  • Page 9 Diagnostic parameters graph (step response of a control loop): Prozeßgröße Process (Hz) variable (Hz) 37-OVER Reference step-change Output freq. 40-UNDER t (s) 65-STIME Note: Parameter 65-SINT for ON delay of control inputs in VF1000M no longer required.

  • Page 10: Commissioning The Controller

    Commissioning the Controller 1) Connect the motor and control cables and set the motor characteristic as set out in the Operation Manual. 2) Connect the actual and reference value signals to inputs FSIN and FSIN2, observing the existing signal type. Important: Only voltage signals can be fed in at input FSIN2.
  • Page 11 Rough optimization of the control parameters: In most processes the optimum control parameter values can be ascertained by the method set out below. However, this does require that the application can be set to an unstable condition for a brief period. Procedure: 1) Set parameter 77-KP to 0.3 and parameter 78-TN to 0 ms.
  • Page 12 Fine adjustment of the control parameters: The controller can be optimized still further with the aid of a step response. This requires the use of a storage oscilloscope or graphical plotter to record the response of the actual value after a reference step-change. Compare the resulting curve with the curves below and correct the setting of KP and TN in small increments.

  • Page 13: Control Start Frequency

    Prozeßgröße Process variable (Hz) (Hz) t (s) Figure B: Influence of the lag time (78-TN) on the step response with optimum gain (77-KP) 1 TN too low 2 Optimum setting if overshoot permitted 3 TN too high Control Start Frequency In some applications it is advantageous if the controller is activated only above a certain motor speed.
  • Page 14 - VF1000M/VF1000L, S58 MART RIVE Overview Technical controller: • PI controller for process control, e.g. pressure, temperature, flow, winding drive, etc. Note: All manufacturers’ declarations and acceptances issued for the standard series are also applicable to the VF1000M, S58 and VF1000L, S58 frequency inverters. When the S58 version is selected the following additional versions are not possible: VF1000M...
  • Page 15 Technical Controller The technical controller in the VF1000M and VF1000L controls process variables such as pressure, temperature, flow rate, jump, etc. It is not suitable for dynamic process variables such as rotational speed. Actual Value Channel 76-CONFI Function 0 VAL Technical controller inactive Analog input FSIN (0 ...
  • Page 16 Block Diagram Reference 76-CONFI = 0 04-FSSEL 76-CONFI = 0 Filter PI controller 12-F 84-FIST 90-ABW 60-FOUT 83-FST2 77-KP, 78-TN 76-CONFI Scaling Actual value y/Hz Functions Reference Actual value 76-CONFI = 04-FSSEL = 9 - 16 17 - 22 X = possible combination Note: Parameter 30-FF7 cannot be selected as a reference.
  • Page 17 Controller Parameters The parameters set out below are available for setting and optimization of the controller: Parameter Manipulating VAL Function range 77-KP 0.1 ... 10 Gain (P-component), adjustable online 78-TN 0.1 ... 65 [s] Lag time (I-component), adjustable online 30-FF7 0 ...
  • Page 18 The following diagnostic parameters are available to check the optimum setting of the controller: Parameter Display value Function 60-FOUT Instantaneous [Hz] Current output frequency (see block diagram) 84-FIST Instantaneous [Hz] Currently scaled reference 37-OVER Fixed [Hz] Maximum output frequency after start 40-UNDER Fixed [Hz] Minimum output frequency after frequency...
  • Page 19 Commissioning the Controller 1) Connect the motor and control cables and set the motor characteristic as set out in the Operation Manual. 2) Connect the motor and control cables and set the motor characteristic as set out in the Operation Manual. 3) Set parameter 04-FSSEL to the available reference signals.
  • Page 20 Rough optimization of the control parameters: In most processes the optimum control parameter values can be ascertained by the method set out below. However, this does require that the application can be set to an unstable condition for a brief period. Procedure: 1) Set parameter 77-KP to 0.3 and parameter 78-TN to 0 ms.
  • Page 21 Compare the resulting curve with the curves below and correct the setting of KP and TN in small increments. When the optimum curve is attained, the values must be saved with the parameter setting (71-PROG to 5). Prozeßgröße Process (Hz) variable (Hz) t (s) Figure A: Influence of the gain (77-KP) on the step response with...
  • Page 22 Control Start Frequency In some applications it is advantageous if the controller is activated only above a certain motor speed. The corresponding motor frequency can be set with parameter 30-FF7. After this frequency has been exceeded for the first time the controller remains active even when the frequency falls below 30-FF7.
  • Page 24 We reserve the right to make technical changes. 0809.22B.0-00 EN 12/97 Lust Antriebstechnik GmbH * Gewerbestr.5-9 * 35633 Lahnau * Germany * Phone +49(0)6441 966-0 * Fax +49(0)6441 966-137...

This manual is also suitable for:

Vf1000l trVf1000l s58Vf1000m s58

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