NANOTEC SMCI33 Technical Manual

Stepper driver
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Technical Manual
NANOTEC ELECTRONIC GmbH & Co. KG
Gewerbestraße 11
D-85652 Landsham near Munich, Germany
Stepper driver
SMCI33
Tel.
+49 (0)89-900 686-0
Fax
+49 (0)89-900 686-50
info@nanotec.com

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Summary of Contents for NANOTEC SMCI33

  • Page 1 Technical Manual Stepper driver SMCI33 NANOTEC ELECTRONIC GmbH & Co. KG Tel. +49 (0)89-900 686-0 Gewerbestraße 11 +49 (0)89-900 686-50 D-85652 Landsham near Munich, Germany info@nanotec.com...
  • Page 2 +49 (0)89-900 686-50 Internet: www.nanotec.com All rights reserved! MS-Windows 2000/XP/Vista are registered trademarks of Microsoft Corporation. Thank you for choosing a Nanotec stepper driver! Target group This technical manual is aimed at designers and developers who need to operate a ®...
  • Page 3: Table Of Contents

    Technical manual SMCI33 V2.0 Contents Contents Overview ..........................4 Connection and commissioning ..................6 Connection diagram ....................... 6 Commissioning........................8 Connections and circuits ....................10 Inputs and outputs (I/O): Connector X1 ................10 Encoder connection: Connector X2 ..................12 Stepper motor connection: Connector X3................13 Voltage supply connection: Connector X4 ................
  • Page 4: Overview

    Overview Overview Introduction The stepper driver SMCI33 is an extremely compact and cost-effective constant current power output stage with integrated Closed-Loop current control. Due to the great capacity and functions available, it offers designers and developers a rapid and simple method of resolving numerous drive requirements with less programming effort.
  • Page 5 SMCI33 V2.0 Overview SMCI33 functions The stepper driver SMCI33 contains the following functions: • Microstep 1/1 – 1/64 Final output stage (0.014° step resolution) • Closed-Loop current control (sinusoidal commutation via the encoder) • Powerful DSP microprocessor for flexible I/O •...
  • Page 6: Connection And Commissioning

    Connection diagram Introduction To operate a stepper motor with the SMCI33 stepper driver, the wiring must be implemented according to the following connection diagram. Inputs (Pin 1 to 6) on the connector X1 and the encoder input (connector X2) can be used optionally.
  • Page 7 Technical manual SMCI33 V2.0 Connection and commissioning Connection diagram SMCI33 Issue: V 2.0 - 2009-07-01...
  • Page 8: Commissioning

    The connection and commissioning of the SMCI33 stepper motor are described below. The main "First steps" are described here to work as fast as possible with the SMCI33 if you want to work with the NANOPRO software from a PC. You will find more detailed information in the separate NANOPRO manual.
  • Page 9 Action Note In the field "Port", select the COM port to which The number of the COM the SMCI33 is connected. port to which the driver is connected can be found in the device manager of your Windows' PC (System Supervision/ System/ Hardware).
  • Page 10: Connections And Circuits

    Technical manual SMCI33 V2.0 Connections and circuits Connections and circuits Inputs and outputs (I/O): Connector X1 Introduction An overview of the assignments can be found in the connection diagram in Section 2.1.. This section looks in detail at the assignment, functions and circuits of the connector X1..
  • Page 11 Input circuits All inputs (apart from the "Analogue In" input) are electrically isolated by optocouplers from the voltage supply of the SMCI33 and designed for 5 - 24 V input signals at an input current of 10 mA. The digital inputs 1 to 6 can be configured with the aid of the software NANOPRO for “active-high"...
  • Page 12: Encoder Connection: Connector X2

    SMCI drivers in order to monitor positioning. We recommend shielding and twisting the encoder line to minimise external interference influences on the encoder signal. In the third quarter of 2009 Nanotec is bringing an adapter onto the market which can also evaluate the differential signal.
  • Page 13: Stepper Motor Connection: Connector X3

    Connections and circuits Stepper motor connection: Connector X3 General information The motor is connected to the SMCI33 with a 4-wire cable. Twisted wire pair cables with braided shields are recommended. Danger of electrical surges Mixing up the connections can destroy the output stage!
  • Page 14 Technical manual SMCI33 V2.0 Connections and circuits Issue: V 2.0 - 2009-07-01...
  • Page 15: Voltage Supply Connection: Connector X4

    Voltage supply connection: Connector X4 Permissible operating voltage The permissible operating voltage for the SMCI33 stepper driver lies between +24 and +48 V DC; it must not exceed 50 V or fall below 21 V . A charging condenser with minimum 4700 µF (10000 µF) must be provided for the operating voltage to prevent exceeding the permissible operating voltage (e.g.
  • Page 16: Interface Rs485 Network: Connector X5

    These network connections are set up via the RS485 interface. RS485 interface (D-Sub socket connector): Connector X5 A 9 pin D-Sub socket connector is located on the top of the SMCI33 (connector X5). The connector X5 provides the optional connection to the RS485 network.
  • Page 17 Technical manual SMCI33 V2.0 Connections and circuits Circuit diagram RS485 network Issue: V 2.0 - 2009-07-01...
  • Page 18 SMCI33 V2.0 Connections and circuits Connection requirements • The RS485 4-wire bus is used as a pure Master-Slave application. All SMCI33 are connected in parallel as Slaves to the bus. • Up to 32 stations can be operated on the network.
  • Page 19: Operating Modes

    Use this mode, when you wish to operate the driver with a superordinate controller (e.b. CNC controller) In the clock direction mode, the SMCI33 is operated via two inputs with a clock and a direction signal from a superordinate positioning control (indexer).
  • Page 20 Technical manual SMCI33 V2.0 Operating modes Operating mode Application Analogue positioning mode Use this mode when you wish to travel to a specific position. The voltage level on the analog input is proportional to the required position, thus enabling servo behavior.
  • Page 21: Reference Runs And Limit Switch Behaviour

    This reference point is on the motor shaft and is therefore reached with each full motor revolution. As with the external reference run, the behavior of the SMCI33 recognizing the reference point in normal operation (positioning and flag positioning mode) can be defined.
  • Page 22 Technical manual SMCI33 V2.0 Reference runs and limit switch behaviour "Free backwards" The motor changes direction on recognition of the limit switch and leaves the limit switch. "Free forwards" The motor continues in the same direction after recognising the limit switch and leaves the limit switch.
  • Page 23 Technical manual SMCI33 V2.0 Reference runs and limit switch behaviour "Stop" The motor stops immediately on recognition of the limit switch. A reference run must then be implemented as the motor may have lost steps (overflow). "Disable" The limit switch has no function.
  • Page 24: Troubleshooting

    Click on the <Yes> button to stop the the driver during the output of travel profile. a travel profile. The SMCI33 switches back to the "Ready" state. The data can then be resent to the driver. Transmission Data transmission to the...
  • Page 25 Red LED on Overtemperature of power Switch off driver and allow to cool. the SMCI33 lit electronics > 75 °C The error is reset when the SMCI33 is disconnected from the power supply unit. Undervoltage Check voltage supply. Issue: V 2.0 - 2009-07-01...
  • Page 26: Technical Data

    Technical manual SMCI33 V2.0 Technical data Technical data Electrical connections Operating voltage U DC 24 V to 48 V ±4% Max. phase current Adjustable up to max. 3 A/Phase Continuous current 2 A/Phase Current drop Adjustable 0 to 80% of phase current Interfaces •...
  • Page 27 • Signal delay time: Output 1/2: ≈ 12 µs (at 10 kΩ-Pull-Up on 24 V) SMCI33 dimensions A complete set of datasheets is available for downloading at www.nanotec.com. Connectors The following connectors are available on the SMCI33: • Connectors X1, X2, X3 und X4: Phönix connector, Type MICRO COMBICON...
  • Page 28: Index

    Technical manual SMCI33 V2.0 Index Index Accessories fo r volta ge supply....15 Operating modes ........5, 19 Operating voltage.......... 15 Output circuits ..........11 Closed-Loop current control ......6 Commissioning ..........8 Connection diagram ........7 Pin assignment encoder ............12 connector X1 ..........10 inputs and outputs (I/O) ......10...

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