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SCF Series Drives

Modbus Communications Reference Guide

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Summary of Contents for AC Tech SC Series

Page 1: ...SCF Series Drives Modbus Communications Reference Guide...

Page 2: ...n of the drive 2003 Lenze AC Tech Corporation No part of this documentation may be copied or made available to third parties without the explicit written approval of Lenze AC Tech Corporation All info...

Page 3: ...4 3 Data Representation Internal and External 5 3 1 Register Format 5 3 2 Data Types 5 3 3 AC Tech Drive Registers 5 4 SCF Drive Setup Operation 6 4 1 Serial Address 6 4 2 Serial Communications Parame...

Page 4: ...mmand Source Registers 24 28 15 5 4 6 Auto Manual Status Registers 24 28 15 5 4 7 Present Fault Registers 24 29 16 5 4 8 Commanded Rotational Direction Registers 24 29 16 5 5 Motor Volts Register 30 1...

Page 5: ...installing the drive controllers in machines commissioning i e the starting of operation as directed is prohibited until it is proven that the machine complies with the regulations of the EC Directiv...

Page 6: ...entation DANGER After the controller has been disconnected from the supply voltage do not touch the live components and power connection until the capacitors have discharged Please observe the corresp...

Page 7: ...g from 0 AC Tech register numbers are also numbered starting from 0 Therefore AC Tech register numbers always correspond exactly with the address transmitted As a result MODBUS REGISTER NUMBERS ARE AL...

Page 8: ...he QC MC MCH SC TC smd Tmd and SMV Series drives support Modbus based communications Since each drive family has different parameters and size ranges the parameter register definitions are in many cas...

Page 9: ...ries Internal Units Type Unit Example SPEED 1Hz 60Hz 600 TIME 1Sec 30 0Sec 300 3 3 AC Tech Drive Registers Registers 0 through 50 Modbus Registers 1 to 51 Reserved for configuration and control Regist...

Page 10: ...9600 N 2 WITHOUT TIMER 4 9600 E 1 WITH TIMER 10 sec 5 9600 E 1 WITHOUT TIMER 6 9600 O 1 WITH TIMER 10 sec 7 9600 O 1 WITHOUT TIMER Explanation of Terms DISABLED serial link not operational WITH TIMER...

Page 11: ...Control with bit 1 set will Lock both Controls and Parameters prevents writing to any register The serial drive control can be unlocked only if terminal TB1 is asserted and the drive is not in program...

Page 12: ...tchdog using Programming Parameter 15 SERIAL LINK Programming Parameter 15 controls both the enabling of the serial link and the Watchdog By setting Parameter 15 to one of the selections WITH TIMER en...

Page 13: ...d speed source to 01 keypad and put drive in MANUAL mode so that it responds to speed commands from the Keypad Speed Command register This is done by sending 0200 hex to Register 1 bit 9 asserted 4 Co...

Page 14: ...D6L CRC 24 18 Command Speed R SA 03 00 18 00 01 CRC 0 2400 0 1 Hz 4a RS SA 03 02 DH DL CRC 25 19 Actual Speed R SA 03 00 19 00 01 CRC 0 2400 0 1 Hz 4b RS SA 03 02 DH DL CRC 26 1A Load DH Status DL R...

Page 15: ...strates the Data High Byte and Data Low Byte format of Register 1 Drive Control Table 7 Drive Control Register 1 Data Low Byte 0 UPDATE BUFFERS 1 LOCK SECURITY 2 STOP DRIVE 3 START DRIVE 4 UNUSED 5 UN...

Page 16: ...Hardware Configuration Register 22 Table 8 lists the SCF Drive Hardware Configuration Register 22 Bits 4 15 are not used at this time Table 8 Register 22 Drive Hardware Configuration BIT STATE MEANING...

Page 17: ...oad D3H Operation Status D3L Rotational Direction D4H Control Mode D4L Speed Command Source D5L Auto Manual Status D5H Present Fault D6H Command Rotation D6L NOTE 4a Command Speed Bytes D1H and D1L or...

Page 18: ...tional Direction Registers 24 27 Table 11 lists the Actual Rotational Direction Register 24 byte D4H or Register 27 DH Table 11 Actual Rotational Direction Setting Direction 0 FORWARD 1 REVERSE 5 4 4...

Page 19: ...ter 28 DH Table 13 Speed Command Source Setting Source 0 KEYPAD 1 0 10VDC 2 4 20MA 3 PRESET 1 4 PRESET 2 5 PRESET 3 6 PRESET 4 7 PRESET 5 8 PRESET 6 9 PRESET 7 10 JOG 11 MOP 5 4 6 Auto Manual Status R...

Page 20: ...ERNAL2 F2 12 INTERNAL3 F3 13 INTERNAL4 F4 14 INTERNAL5 F5 15 INTERNAL6 F6 16 INTERNAL7 F7 17 INTERNAL8 F8 18 INTERNAL9 F9 19 INTERNALo Fo 20 SINGLE PHASE FAULT SF 21 INCOMPATIBILITY FAULT cF 22 DYNAMI...

Page 21: ...he drive sees no activity within the update time period it will stop the drive Whenever a communications session where 48 or 49was activated is to be ended register 1 bit 1 Lock Security must be asser...

Page 22: ...ponse SA 03 08 D1H D1L D2H D2L D3H D3L D4H D4L CRC WRITING Message structure for writing 1 word all parameters Request SA 06 00 RA DH DL CRC Response SA 06 00 RA DH DL CRC LEGEND for Parameter List 1s...

Page 23: ...rt 3 01 Normal 54 36H 4 Stop Method 01 Coast 02 Coast with DC Brake 03 Ramp 04 Ramp with DC Brake 01 Coast 55 37H 5 Speed Source 01 Keypad 02 Preset 1 03 0 10 VDC 04 4 20 mA 01 Keypad 56 38H 6 TB 14 O...

Page 24: ...4 Preset Speed 2 05 Decrease Freq MOP 06 Jog Forward 07 Jog Reverse 08 Ramp to Stop 01 None 62 3EH 12 TB 13C Input 01 None 02 0 10 VDC 03 4 20 mA 04 Preset Speed 3 05 Inc Freq MOP 06 External Fault 07...

Page 25: ...ncy Minimum Frequency 2400 240 0 Hz 600 60 0 Hz 75 4BH 25 Current Limit 300 1800 30 180 1800 180 76 4CH 26 Motor Overload 300 1000 30 100 1000 100 77 4DH 27 Base Frequency 250 5000 25 0 500 0 Hz 600 6...

Page 26: ...H 50 FAULT HISTORY Must Read 4 Words Read Only See Note 5 101 65H 51 SOFTWARE VERSION Must Read 1 or 4 Words Read Only See Note 6 102 66H 52 BUS VOLTAGE 0 250 MIN 0 MAX 250 Read Only 103 67H 53 ACTUAL...

Page 27: ...byte oldest fault is in the last data byte Refer to table 17 for clarification Table 17 Fault Codes Register 100 Code Fault Description Display 0 NO FAULT 1 OUTPUT TRANSISTOR FAULT OF 2 HIGH DRIVE TE...

Page 28: ...number If received word contains hexadecimal number 0x4003 it translates to 0x40 decimal 64 software version and 0x03 decimal 3 revision number NOTE 7 AC Tech Registers 107 108 Parameter 57 58 Digital...

Page 29: ...he timer is hard coded to a value of 10 seconds If the drive is under network control and the master does not communicate with the SCF drive for longer than the 10 second timeout period the drive will...

Page 30: ...any other function 4 Setting the Drive to Manual Mode In order for the drive to respond to speed commands written to the keypad speed register the drive must be put into manual mode To do this write...

Page 31: ...tatus byte D3L or Register 26 DL VALUE OPERATIONAL STATE 0 FAULT LOCKOUT 1 FAULT 2 START PENDING 3 STOP 4 DC BRAKE 5 RUN AT 0Hz 6 RUN 7 ACCEL 8 DECEL 9 CURRENT LIMIT 10 DECEL OVERRIDE 11 LOWER TRANSIS...

Page 32: ...Lenze AC Tech Corporation 630 Douglas Street Uxbridge MA 01569 USA Sales 800 217 9100 Service 508 278 9100 www lenze actech com RG SFMOD e6...

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