SEW-Eurodrive MOVITRAC 31 Series Manual
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SEW-Eurodrive MOVITRAC 31 Series Manual

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MOVITRAC
®
31..
Frequency Inverter
Manual
Communications Interfaces
and Parameter List
Edition 12/96
08/141/93

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Summary of Contents for SEW-Eurodrive MOVITRAC 31 Series

  • Page 1 MOVITRAC ® 31.. Frequency Inverter Manual Communications Interfaces and Parameter List Edition 12/96 08/141/93...
  • Page 2 ® MOVITRAC 31.. Communications Interfaces and Parameter List Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com...

  • Page 3: Table Of Contents

    Table of Contents PAGE Introduction ......4 Communications Interfaces ..... . 6 Mode of operation .

  • Page 4: Introduction

    Introduction Introduction ® MOVITRAC 31.. frequency inverters of sizes 1 to 4 have two independent serial interfaces which can be implemented with different SEW options to suit a variety of applications. The interfaces are accessible through connectors X4 (for the operator control options) and X20 (for the option pcbs). The functional independence of the interfaces provides a great degree of flexibility and a wide scope of application.
  • Page 5 Introduction USS 11A (Techn. data → Sec. 2.2.2): Converts the internal signal level to RS-232 signal level. An automation unit (PLC) or a PC can be connected to the 9-pin type D socket with a standard interface cable. This enables the user to set parameters or control the inverter (e.g.

  • Page 6: Communications Interfaces

    Communications Interfaces Communications Interfaces Mode of operation The two serial interfaces (X4 and X20) allow the inverter to be completely parameterized. They further offer the possibility of reading all internal and external states of the unit (actual values, terminal signals) and of controlling the inverter. Both interfaces work independently of one another and have equal priority.
  • Page 7 Communications Interfaces Figure 2 shows the execution principles of the communications protocol for the serial interfaces of the inverter. Seven different message types (frames) are used which are recognized by their start delimiters (SD): Type of message Data service ENQUIRY Request parameter value DATA Acknowledgement with parameter value...
  • Page 8 Communications Interfaces 2.1.1.2 DATA frame ® The MOVITRAC 31.. uses this frame to send the requested data in response to an ENQUIRY frame of the higher-level control system. Index Value Byte Start delimiter = C8 Indicates the start of the frame Index Index Contains a 16-bit number, which specifies the requested parameter.
  • Page 9 Communications Interfaces 2.1.1.4 SELECT frame The higher-level control system sends this frame to the inverter to overwrite a parameter in the unit. ® After successful receipt, the MOVITRAC 31.. responds with an ACK frame or, in the case of an error, with a NACK frame.
  • Page 10 Communications Interfaces 2.1.1.6 ACK (Acknowledge) frame The inverter uses this frame to acknowledge error-free receipt of the SELECT frame. Byte Start delimiter = D2 Indicates the start of the frame. Frame checksum The checksum (FCS) is the sum of all previous bytes, without carry. 800716AEN Figure 8: ACK frame 2.1.1.7 NACK (Not Acknowledge) frame...

  • Page 11: Return Codes (Rc)

    Communications Interfaces 2.1.2 Return codes (RC) The table below lists the possible return codes (RC) in a NACK frame: Meaning Illegal index Function/parameter not implemented Read access only Parameter lock (P 800) active Factory setting (P 830) running Parameter value too large Parameter value too small Necessary option pcb for function or parameter not installed Fault in system software...

  • Page 12: Application Examples

    Communications Interfaces 2.1.3 Application examples The following examples illustrate the execution sequence of the protocol and the use of the associated frames. All figures are in hexadecimal format. 2.1.3.1 Reading the parameter “Heat sink temperature” (P 001) The application program installed on a PLC is required to evaluate the heat sink temperature of the inverter with the address 12 for safety purposes.
  • Page 13 Communications Interfaces 2.1.3.2 Writing the parameter “T11 RAMP UP” (P 120) The PLC (master) is required to set the time for the first acceleration ramp (T11) to a value of 3.7 seconds. The following SELECT frame must be sent to the inverter for this purpose: Byte ADDR Index...

  • Page 14: The Rs-232 Interface

    Communications Interfaces The RS-232 interface ® 2.2.1 Connecting the MOVITRAC 31.. to a PC ® The RS-232 serial connection between a MOVITRAC 31.. and a PC (or a higher-level control system) is made with the USS 11A interface option, which is plugged into the X4 connector on the front of the unit.

  • Page 15: Technical Data Of The Rs-232 Interface

    Communications Interfaces SEW-EURODRIVE provides a powerful tool in the form of the MC_SHELL PC program, which is ® specially designed for parameter setting of MOVITRAC frequency inverters via PC. A communications processor which provides the functionality of an RS-232 interface is required for the connection to a PLC.

  • Page 16: The Rs-485 Interface

    Communications Interfaces The RS-485 interface The RS-485 interface is available on terminals 67/68 of the UST 11A option (plugs into X4) and on the FEA 31.. and FIO 31.. options (plugs into X20). These interfaces have two principal functions: 1.Networking of an automation unit with several inverters. ®...

  • Page 17: Technical Data Of The Rs-485 Interface

    Communications Interfaces FEA 31 FEA 31 FEA 31 FIO 31 FIO 31 FIO 31 MASTER SLAVE SLAVE Speed setpoint 1700725AEN Figure 17: Master-slave operation via RS-485 The setpoint given by the master can be scaled with a factor between 0.1 and 10.0 and thus individually adapted for each slave.

  • Page 18: Communicating With A Plc

    Communications Interfaces Communicating with a PLC ® For a PLC and a MOVITRAC 31.. unit to communicate, fit the PLC with a communications module (communications processor, CP) which allows the transmission protocol to be freely programmed. ® ® In the case of the SIMATIC S5, for example, you may use the CP523 module to link the MOVITRAC 31..

  • Page 19: Initializing The Plc Module Cp523 In The User Program

    Communications Interfaces 2.4.2 Initializing the PLC module CP523 in the user program In the communications mode the CP523 communications processor allows up to 256 bytes to be transmitted with a CPU request. In the communications mode “transparent” the CP523 does not interpret any characters.

  • Page 20: Example: Reading The Parameter "Heat Sink Temperature" (P 001)

    Communications Interfaces 2.4.3 Example: Reading the parameter “Heat sink temperature” (P 001) To read out the heat sink temperature of a frequency inverter with the address 0, the CP523 is to send an ENQUIRY frame to the inverter. The transfer buffer and the transfer procedure are as follows: 1.

  • Page 21: Example: Writing The Parameter "T11 Ramp Up" (P 120)

    Communications Interfaces 2.4.4 Example: Writing the parameter “T11 RAMP UP” (P 120) To set the parameter “T11 RAMP UP” of a frequency inverter with the address 0 to 3.7s, the CP523 is to send a SELECT frame to the inverter. The transfer buffer and the transfer procedure are as follows: 1.

  • Page 22: Data Formats

    Data Formats Data Formats The transmission of the parameter values via the serial interfaces is made in a numerical format. Three different formats are used. All “text strings”, such as YES, NO, ON, OFF etc. are given numerical values, which are specified in the following list for each parameter. 4-byte BCD format In this format each value takes up four bytes of a frame.

  • Page 23: 4-Byte Binary Format

    Data Formats 4-byte binary format In this format the individual bits or bytes have characteristics or functions assigned to them. Parameters in this format are transmitted uncoded. For these parameters the exact assignment of the data bytes is given in the parameter list. This format is identical for the communications interfaces (RS-232 and RS-485) and the fieldbus interfaces.

  • Page 24: Parameter List

    Parameter List Parameter List R = READ / W = WRITE Index-No. Par. Format Ac- Meaning/ No. Parameter cess Value range DISPLAY VALUES 000 Frequency [Hz] 0 4-byte R / - 0...400 001 Heat sink temperature [°C] 4 R / - -20...+100 003 External current limit [%] 18...
  • Page 25 Parameter List Index-No. Par. Format Ac- Meaning/ No. Parameter cess Value range 060 Fault t-0 4-byte R / - 0 = No fault 1 = Overcurrent 2 = DC-link voltage 3 = Brake chopper 061 Fault t-1 R / - 4 = Continuous overload 5 = Regenerative Overld.

  • Page 26: Setpoints / Ramp Generators P 100 - P 185

    Parameter List Index-No. Par. Format Ac- Meaning/ No. Parameter cess Value range SETPOINTS / RAMP GENERATORS 100 n1 characteristic 4-byte R / W 0.00 = Gain 1.00 = Offset 101 n1 gain factor R / W 0.10...10.00 Step 0.10 102 n1 offset factor R / W 0.10...10.00 Step 0.10 R / W 0.00 = 0...10V or 0...20mA (depends on S1)

  • Page 27: Motor Parameters P 310 - P 350

    Parameter List Index-No. Par. Format Ac- Meaning/ No. Parameter cess Value range MOTOR PARAMETERS 310 Motor rated current 1 [%] 310 136 4-byte R / W 20.00...200.00 Step 1.00 311 PWM FIX 1 329 149 R / W 0.00 = No 1.00 = Yes 320 I ] 102 66...

  • Page 28: Monitoring Functions P 500 - P 572

    Parameter List Index-No. Par. Format Ac- Meaning/ No. Parameter cess Value range CONTROL FUNCTIONS 500 Deceleration monitoring 140 8C 4-byte R / W 0.00 = No 1.00 = Yes 501 Frequency ref. value 3 [Hz] 139 8B R / W 10.00...99.00 Step 1.00 510 Motor n-monitoring 1 141 8D R / W 0.00 = No...

  • Page 29: Terminal Assignment P 600 - P 641

    Parameter List Index-No. Par. Format Ac- Meaning/ No. Parameter cess Value range TERMINAL ASSIGNMENT 600 Terminal 42 150 96 4-byte R / W 0.00 = CCW/Stop 1.00 = Enable/Stop 2.00 = 3.00 = n11 (n21) Parameter set select. 601 Terminal 43 151 97 R / W 4.00 = n12 (n22)

  • Page 30: Control Functions P 710 - P 779

    Parameter List Index-No. Par. Format Ac- Meaning/ No. Parameter cess Value range CONTROL FUNCTIONS 710 Hoist function 1 170 AA 4-byte R / W 0.00 = No 1.00 = Yes 712 Hoist function 2 172 AC R / W 0.00 = No 1.00 = Yes 720 Rapid start 1 174 AE...

  • Page 31: Special Functions P 800 - P 891

    Parameter List Index-No. Par. Format Ac- Meaning/ No. Parameter cess Value range SPECIAL FUNCTIONS 800 Parameter lock 202 CA 4-byte R / W 0.00 = No 1.00 = Yes 801 Save to EEPROM 236 EC R / W 0.00 = On 1.00 = Off 0.00 = On 1.00 = Off...

  • Page 32: Function Bits And Unit Status

    Parameter List Index-No. Par. Format Ac- Meaning/ No. Parameter cess Value range FUNCTION BITS AND UNIT STATUS Remote setpoint [Hz] 223 DF 4-byte 0.00...400.00 Step 0.05 3000.00 = MOVITRAC 3000 Inverter type 271 10F 3100.00 = MOVITRAC 31.. 5000.00 = MOVIDYN 5000 Function bits MC31..
  • Page 33 Parameter List Index-No. Par. Format Ac- Meaning/ No. Parameter cess Value range Inverter status MC31.. 284 11C 4-byte Brake chopper "0" = available binary 24 V supply "1" = 24 Volt Signal type "0" = Current, "1" = Voltage "0" = Set 1, "1" = Set 2 Parameter set Byte 3 "0"...

  • Page 34: Fault Memory

    Parameter List Index-No. Par. Format Ac- Meaning/ No. Parameter cess Value range FAULT MEMORY 400 190 4-byte Fault t-0 DC-link voltage Fault t-0 Heat sink temp. [°C] 402 192 Fault t-0 Frequency [Hz] 403 193 404 194 Fault t-0 Apparent current [%I Fault t-0 Utilization Ixt [%] 406 196 →...

  • Page 35: Ipos Parameters

    Parameter List Index-No. Par. Format Ac- Meaning/ No. Parameter cess Value range IPOS PARAMETERS Reference speed 1 [1/min] 700 2BC 4-byte 0.00...5000.00 Step 1.00 Reference speed 2 [1/min] 701 2BD 0.00...5000.00 Step 1.00 0.00 = Type 0 1.00 = Type 1 Reference travel type 702 2BE 2.00 = Type 2...

  • Page 36: Appendix: Conversion List Index → Parameter

    Appendix Conversion list Index → Parameter: Index No. Index No. Index No. Parameter No. Parameter No. Parameter No. 030/031/032 040/043 Remote-Setpoint ® MOVITRAC 31.. Communications Interfaces and Parameter List Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com...
  • Page 37 Appendix Index No. Index No. Index No. Parameter No. Parameter No. Parameter No. Output recognition 050/051 Fault memory IPOS Parameters (→ Pg. 34) (→ Pg. 35) Inverter type Function bits Inverter status PC Time out 1000 1001 1002 1003 1004 1009 Stop-Setpoint 1 1010...

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