SSD Parvex DIGIVEX Little Drive Servoamplifier User And Commissioning Manual
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SSD Parvex DIGIVEX Little Drive Servoamplifier User And Commissioning Manual

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This manual was downloaded on www.sdsdrives.com
+44 (0)117 938 1800 - info@sdsdrives.com
SSD Parvex SAS
8, avenue du Lac - B.P. 249
F-21007 Dijon Cedex
www.SSDdrives.com
DIGIVEX Little Drive
DIGITAL SERVOAMPLIFIER
User and commissioning manual
PVD 3530 GB – 01/2005

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  • Page 1 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com SSD Parvex SAS 8, avenue du Lac - B.P. 249 F-21007 Dijon Cedex www.SSDdrives.com DIGIVEX Little Drive DIGITAL SERVOAMPLIFIER User and commissioning manual PVD 3530 GB – 01/2005...

  • Page 2: Product Range

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com PRODUCT RANGE « BRUSHLESS » SERVODRIVES TORQUE OR POWER RANGES • BRUSHLESS SERVOMOTORS, LOW INERTIA, WITH RESOLVER Very high torque/inertia ratio (high dynamic performance machinery): ⇒ NX -HX - HXA 1 to 320 N.m ⇒...

  • Page 3: Table Of Contents

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier CONTENTS SAFETY INSTRUCTIONS ……………………………………………………………………………5 PRODUCT RANGE 1. GENERAL Digital Servodrive General Characteristics Operating Principle 1.3.1 Block diagram 1.3.2 Power supply functions 1.3.3 Servomotor control functions 1.3.3.1...
  • Page 4 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier DLD paralleling 3. DIMENSIONS, ASSEMBLY, MASS, LABELLING, CODING Dimensions, Assembly and Mass Labelling and Coding 4. ELECTRICAL CONNECTIONS General Wiring Requirements 4.1.1 Appliance handling 4.1.2...
  • Page 5 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 5. AUTOMATIC CONTROL INPUT / OUTPUT FUNCTIONS AND CHARACTERISTICS Input / Output Characteristics 5.1.1 Logic inputs 5.1.2 Logic outputs 5.1.3 Speed set point input 5.1.4...
  • Page 6 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 7.1.2 Commissioning with DIGIVEX PC software Detecting Reasons for Stoppage 7.2.1 Fault display - drive function 7.2.1.1 Handling operational malfunctions 7.2.1.2 Current monitoring 7.2.1.3 Temperature monitoring 7.2.1.4...
  • Page 7 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier SAFETY Servodrives present two main types of hazard : - Electrical hazard Servoamplifiers may contain non-insulated live AC or DC components. Users are advised to guard against access to live parts before installing the equipment.
  • Page 8 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Upon delivery All servoamplifiers are thoroughly inspected during manufacture and tested at length before shipment. • Unpack the servoamplifier carefully and check it is in good condition.

  • Page 9: General

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 1. GENERAL 1.1 Digital Servodrive All of the drives comprise: Brushless servomotors with permanent magnets, sine-wave e.m.f. and resolver-based position measurement (NX, LX, LS, LD range servomotors)

  • Page 10: Operating Principle

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 1.3 Operating Principle 1.3.1 Block diagram The block diagram shows two parts: A power supply section providing dc voltage to the power bridge and auxiliary power supplies (regulation, fans).
  • Page 11 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier L1/L MOTOR L2/N MOTOR POWER POWER BUS VOLTAGE PROTECTIONS DRV OK MANAGEMENT AUX 1 AUXILIARIES CHOPPED POWER OK INIT SUPPLY AUX 2 C = 0...

  • Page 12: Power Supply Functions

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 1.3.2 Power supply functions Receives the 230 V mains supply through terminal block B3 and converts it into a 325V dc voltage. Receives the 230V monophase mains supply through the same B3 terminal block for powering the auxiliary power supplies (+/-15V, 5V) required by safety regulations.
  • Page 13 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier On the right of the diagram, the motor - resolver - power section. Parameters can be set for: ⇒ the choice of motor, which dictates the drive rating.

  • Page 14: Forcing Logic Inputs

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 1.3.3.3 Forcing logic inputs The software allows the logic input to be forced to a value. Consequently, via the software, the SPEED RANGE, CW, CCW, TORQUE inputs are able to: "disconnect"...
  • Page 15 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier How the ramp operates: The ramp input can either be the analog input instruction or the stimuli generator as shown below: Input Scaling instruction...

  • Page 16: Logic Outputs

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 1.3.3.6 logic outputs Speed detection The OUT1 output status acts in the following manner: Criterion OUT1 Speed < Threshold (OUT1) Speed > Threshold (OUT1) NB: 19 rpm ≤...

  • Page 17: Monitoring Reasons For Stoppage

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 1.3.3.8 Monitoring reasons for stoppage This monitoring may, through strategic choice, entail either stoppage or reduced performance for certain faults related to current. Variables monitored : Mean drive current.

  • Page 18: Compliance With Standards

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 1.4 Compliance with Standards DIGIVEX Little Drive CE Marking DIGIVEX Little Drive products have the CE marking under the European Directive 89/336/EEC as amended by Directive 93/68/EEC on electromagnetic compatibility as well as under the Electrical Safety Directive or Low Voltage Directive 73/23/EEC amended by Directive no.

  • Page 19: Energy Dissipation

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 2. ENERGY DISSIPATION The energy a module has to dissipate is broken down into: Energy generated by braking. Energy from rectifier and power bridge losses.

  • Page 20: Braking Capacity And Module Losses

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 2.1.3 Braking capacity and module losses. 230 V single-phase or three-phase modules. MODULE RATING 7.5/15 Ω Resistor value Maximum current Pulse power Permanent power...

  • Page 21: Dld Paralleling

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 2.2 DLD paralleling The braking capacity of applications requiring the use of several DLD, placed in the same (1) (2) electrical control cabinet, can be increased .

  • Page 22: Dimensions, Assembly, Mass, Labelling, Coding

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 3. DIMENSIONS, ASSEMBLY, MASS, LABELLING, CODING 3.1 Dimensions, Assembly and Mass See the following pages, drawing numbers - FELX 306455 PVD 3530 GB 01/2005...
  • Page 23 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier PVD 3530 GB 01/2005...

  • Page 24: Labelling And Coding

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 3.2 Labelling and Coding Physical identification by labels: On DLD : ∗ One label plate fixed to the appliance as in the model below: Meaning of label indications: •...

  • Page 25: Electrical Connections

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 4. ELECTRICAL CONNECTIONS 4.1 General Wiring Requirements 4.1.1 Appliance handling Please refer to the safety instructions given at the beginning of this booklet. It is strongly recommended that personnel wait for the 7-segment display, situated on the front panel, to go off before undertaking any intervention of the servoamplifier or servomotor.

  • Page 26: Digivex Little Drive Sub-D Connectors

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 4.1.3 DIGIVEX Little Drive Sub-D connectors In order to ensure the system is free from disturbances, it is essential for the rack to be properly connected to the earth plane of the electrical cabinet and for the covers of the Sub-D connectors to be EMI/RFI shielded (metal with shielding braid connection).
  • Page 27 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier PVD 3530 GB 01/2005...
  • Page 28 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier PVD 3530 GB 01/2005...
  • Page 29 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier PVD 3530 GB 01/2005...
  • Page 30 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier PVD 3530 GB 01/2005...

  • Page 31: Description Of Terminal Blocks And Sub-D Connector

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 4.3 Description Terminal Blocks Sub-D Connector All the input/outputs required for operation are arranged on the front panel in the form of: - B1 brake power supply terminal.

  • Page 32: Sub-D Connectors

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 4.3.1 Terminal blocks B1, B2, B3, B4 TERMINAL ITEM Front Panel TERMINAL TERMINAL FUNCTION BLOCK REF. Marking CAPACITY TYPE Min 0,2 mm² B1/1 24V input for Unpluggable Max 2,5 mm²...

  • Page 33: Sub-D Connector X1:"Resolver

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 4.3.2.2 Sub-D connector X1:"Resolver" DIGIVEX end connections, Sub-D 9 pin connector item ref. X1. Maximum conductor cross-section: 0.5 mm² CONTACT TYPE FUNCTION Input Cosine S1...
  • Page 34 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier PVD 3530 GB 01/2005...

  • Page 35: Sub-D Connector X2: Inputs / Outputs

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 4.3.2.3 Sub-D connector X2: Inputs / Outputs CONTACT TYPE FUNCTION CHARACTERISTICS EA1 + Speed or current set point ±10V, Analog conversion: + point 13 bits + sign...
  • Page 36 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier "Inputs / Outputs" Sub-D connector (continued) CONTACT TYPE FUNCTION CHARACTERISTICS EL4 + TORQUE: enables torque if Optocoupled 24V type 1 logic input is at 1...
  • Page 37 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier PVD 3530 GB 01/2005...

  • Page 38: Sub-D Connector X3: Encoder Emulation

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 4.3.2.4 Sub-D connector X3: encoder emulation Sub-D 9-pin plug. Maximum conductor cross-section: 0.5 mm². CONTACT TYPE FUNCTION Output Output Output Output Top 0 Output...
  • Page 39 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier PVD 3530 GB 01/2005...

  • Page 40: Sub-D Connector X4 : Rs232

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 4.3.2.6 Sub-D connector X4 : RS232 Maximum conductor cross-section: 0.5 mm² Serial link configuration : ♦ 9600 bauds ♦ 8 data bits ♦ 1 start bit, 1 stop bit ♦...

  • Page 41: Power Component Dimensions

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 4.4.2 Power component dimensions one single drive Applicable to components ahead of the DLD (fuses, cables, contactors, etc.), these dimensions are dependent on: Permanent current Î...

  • Page 42: Terminal Block B1: Brake Supply

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Clarification: 1) Connection of the auxiliary power source is not compulsory because it is fed internally by the direct bus. Connection proves necessary if we want to save the position and the state through the encoder output (emulation) when for safety reasons, the mains power is turned off.

  • Page 43: Connecting Servomotors

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 4.5 Connecting Servomotors 4.5.1 Power cable definition Attention! Only use copper core cables The motor / drive power connection cables will have as a minimum: three isolated conductors connected to phases U, V, W.
  • Page 44 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier In the case of long lengths In the case of long cable lengths, there is a special function in the DLD variable speed drive for versions of software above or equal to AP516V07, running with PME version 4.04 or above.
  • Page 45 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier PVD 3530 GB 01/2005...
  • Page 46 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier PVD 3530 GB 01/2005...
  • Page 47 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier PVD 3530 GB 01/2005...
  • Page 48 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier PVD 3530 GB 01/2005...

  • Page 49: Motor End Connection

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 4.5.2 Motor end connection Power connection There are two possibilities for connection: Terminal block + resolver connector. Power connector + resolver connector. Terminal block connection...
  • Page 50 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier PLUG 220065R1610/1611 CABLE CROSS-SECTION FOR PLUGS PLUG 220065R1610 : power & earth: 0.14 - 1.5 mm². Brake & thermal: 0.14 - 1 mm² PLUG 220065R1611 : power & earth: 0.75 - 2.5 mm². Brake & thermal: 0.14 - 1 mm²...

  • Page 51: Resolver Connection

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 4.5.3 Resolver connection The resolver is a high-precision sensor (±10 angular minutes as standard) which must be wired carefully: Separate power cable routing. Cable twisted and shielded in pairs (no general shielding). The shielding must be linked to the metal SUB-D plug cover.

  • Page 52: Automatic Control Input / Output Connection

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 4.5.4 Automatic control Input / Output connection See functions and characteristics of these inputs / outputs in Section 5. Sub-D X2 : use the cable as in drawing FELX 304553 (see § 4.3.2.3).

  • Page 53: Automatic Control Input / Output Functions And Characteristics

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 5. AUTOMATIC CONTROL INPUT / OUTPUT FUNCTIONS AND CHARACTERISTICS 5.1 Input / Output Characteristics 5.1.1 Logic inputs 24 V dc optocoupled inputs (isolation voltage 100 V)

  • Page 54: Speed Set Point Input

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Opto-isolated output (opto-mos), PNP type, the load being for connection to the 0V logic (i.e. between the two contacts allocated to this output). 5.1.3 Speed set point input...

  • Page 55: Current Limitation Input

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 5.1.4 Current limitation input 5.1.5 Analog outputs PVD 3530 GB 01/2005...

  • Page 56: Encoder Emulation

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 5.1.6 Encoder emulation Electrical characteristics The electrical output interface meets standard RS422 for differential serial links. The circuit used is a "LINE DRIVER" of the MC26C31D type. The electrical characteristics are therefore closely related to the use of this component.
  • Page 57 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier A, B, Top0 ENCODER INTERFACE 2631 NUMERICAL CONTROL DIGIVEX CONNECTION Encoder Emulation The resolver is above all a position sensor. It is used to measure the position of the rotor relative to the stator.

  • Page 58: Reset And Contactor Control

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 5.2 RESET and Contactor Control - X2/5 Reset + - X2/21 to X2/24 Reset - A rising 24V front applied to X2/5 as compared to X2/21 induces the reset after a fault.

  • Page 59: Initilialization Sequence

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 5.3 Initilialization Sequence After auxiliary power has built up: (approx. 300 ms) ⇐ Mains supply present ⇒ Motor operational To + 1s 5.4 Stop Sequence 5.4.1 Normal stoppage...

  • Page 60: Servo-Control Parameter Function And Setting

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 6. SERVO-CONTROL PARAMETER FUNCTION AND SETTING 6.1 Servocontrol Parameter Functions 6.1.1 List of parameters Choice of regulation type: Speed Proportional: P ⇒ Proportional integral: PI ⇒...
  • Page 61 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Choosing P The drive is used in a speed loop with purely proportional gain. This gain is the ratio between the output current and the speed error. It is expressed in mA / rpm.
  • Page 62 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Choosing PI (proportional and integral action) Compared with P action alone, PI provides the following two modifications: The gain (open loop) at zero frequency is infinite. If there is a torque surge, there will be an angular discrepancy of the motor shaft compared with the state at rest.

  • Page 63: Integration Stoppage

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 6.1.3 Integration stoppage See the previous paragraph for the function of this parameter. Below is its definition after the Bode graphs only (gain / frequency and phase / frequency).

  • Page 64: Predictors

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Second order filter This phenomenon cannot be dealt with by P/PI/PI 2 adjustment. If the resonance cannot be dealt with mechanically, the frequencies concerned must be eliminated. This is the function of the second order low pass filter.
  • Page 65 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier General characteristics of each predictor Mass or gravity compensation (vertical axis) The current value, in amps, required by the motor to move the mass at constant speed (average between up and down) is introduced directly into the parameter.

  • Page 66: Inputting Parameters

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 6.2 Inputting Parameters Customization parameters for the motor - amplifier unit are entered on start-up, using a PC with the PME software, under WINDOWS.

  • Page 67: Internal Variables

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 6.3.2 internal variables Accessible internal variables (via DIGIVEX PC software) The following internal variables may be selected: Reference ♦ 1 Input set point in rpm ♦...

  • Page 68: Entering Parameters Via Digivex Pc Software

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Access via the name of the variable, this is valid for the 16 above plus the following variables: • Temperature in °C • Auxiliary input in Volts •...
  • Page 69 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Proportional gain adjustment Initial status Switch to proportional gain P alone. Filtering frequency fc to maximum (800 Hz) and low gain. System ready to run, no predictor.
  • Page 70 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier There are three possibilities : Non oscillating response A response must be obtained without overshooting and oscillation. For example, increase gain until oscillations gradually appear, then reduce it by 20 to 30%.
  • Page 71 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Then reduce the filtering frequency until the oscillation disappears almost completely. If that cannot be done, the maximum gain is reached. If possible, gain can be increased again until a response is obtained without oscillation.

  • Page 72: Setting Predictors

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Speed measurement fi too high pseudo-period Time Dipl43gb.D/46W Do not change PI to PI without setting the integral frequency to 0. 6.3.5 Setting predictors Initial conditions All loop parameters (P, integral and filtering frequency, max.
  • Page 73 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Input reference Time Current reference Time Diggb43.D/47W N.B. I+ and I- are to be taken with their sign. In general I- is negative. In principle: −...
  • Page 74 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Setting the dynamic friction and acceleration parameters. (It is assumed that the dry friction and gravity predictors have been set). Use a sine stimulus, offset 0, peak to peak value 10 to 20% of maximum speed, frequency 0.2 to 1 Hz.
  • Page 75 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Remember that the value of t pr (prediction time) (in ms) is close to td (start up time) with: ω (Load inertia motor inertia)

  • Page 76: Setting Current Regulation Parameters

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 6.3.6 Setting current regulation parameters If the "current" option has been chosen, the only adjustments needed are: Current limitation; take care in this type of application that it does not trip with mean or rms current monitoring.

  • Page 77: Commissioning - Servo-Control Parameter Setting - Detecting Reasons For Stoppage

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 7. COMMISSIONING - SERVO-CONTROL PARAMETER SETTING - DETECTING REASONS FOR STOPPAGE 7.1 Start-up Sequence 7.1.1 Preliminary checks Wiring check Power and auxiliary connections to DLD.

  • Page 78: Detecting Reasons For Stoppage

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Once "on line" all the parameters in the DIGIVEX Little Drive can be read. Using the PC help functions, check the fault analysis for the lack of faults.

  • Page 79: Handling Operational Malfunctions

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 7.2.1.1 Handling operational malfunctions There are 2 kinds of malfunction: • Malfunctions that require stoppage of the system These malfunctions must lead to: ♦ The opening of the main contactor and disconnection of the power supply (controlled by the DRV OK X2/6, X2/18 logic output) (See §...

  • Page 80: Temperature Monitoring

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier Drive output current There are two forms of monitoring: ♦ Short-circuit protection: monitoring of current drift. ♦ Excessive output current (maximum current). Check whether the current as measured exceeds the drive pulse current by 30%.

  • Page 81: 7-Segment Display

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 7.2.1.6 7-segment display Function: to provide information on DLD status discriminating between faults. Description : Display Description Drive live, no power present Drive OK, power present...

  • Page 82: Corrective Actions

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 7.2.1.7 Corrective actions The incidents that may arise (from wiring errors or mishandling) are as follows: Resolver fault ♦ Check the resolver connection. Overcurrent ♦...

  • Page 83: Defaults Description

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 7.3 Defaults description DEFAULT TYPE ACTION Detection of S1,S2, S3 and S4 signal absence. Loss of resolver excitation: Veff rated value = 7V, Frequency = 8012 Hz on R1, R2/R3.
  • Page 84 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier DEFAULT TYPE ACTION Excessive mean Mean current: measurement of the mean current supplied by the motion controller Rms current: calculation of the rms current supplied by the motion controller Causes: •...

  • Page 85: Appendix

    This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com DIGIVEX Little Drive Servoamplifier 8. APPENDIX UL CERTIFICATE PVD 3530 GB 01/2005...

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