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User Manual MODBUS-RTU Option Board for SV-iS5 Series Read this manual carefully before using the MODBUS-RTU Option board and follow the instructions exactly. After reading this manual, keep it at handy for future reference. LG Industrial Systems...
Thank you for purchase of LG Modbus-RTU Option Board! SAFETY PRECAUTIONS Always follow safety precautions to prevent accidents and potential hazards from occurring. Safety precautions are classified into “WARNING” and “CAUTION” in this manual. Indicates a potentially hazardous situation which, if not avoided, WARNING can result in serious injury or death.
INTRODUCTION By using a MODBUS-RTU Option board, SV-iS5 inverter can be connected to a MODBUS-RTU network. 1.1. When you use the MODBUS-RTU Option Card … Inverter can be controlled and monitored by the sequence program of the PLC or other master module. The card provides a terminal block for an RS-485 interface.
2.3. Communication Specification Items Specifications Communication speed 1200 /2400/4800/9600/19200 bps Selectable Control procedure Asynchronous communication system Communication system Half duplex system Character system Binary (8 bit) Start/Stop bit 1 bit Error check (CRC16) 2 byte Parity check None PRODUCT DETAIL 3.1.
3. When power ON, CPU LED is blinking per second after all LEDs blink one after another. 4. If “CPU LED” is not blinking, turn off the inverter power swiftly (if not, inverter and the board may get damaged.) and check for the proper installation of the board. If the problem persists, contact LG distributor.
TROUBLE SHOOTING If communications cannot be established with the drive, there are four LEDs on the Modbus card to aid in troubleshooting. The CPU LED should blink once per second to indicate that the modbus card is interfacing with the inverter main PCB properly. The RXD LED should blink each time a properly formed Modbus message is received that is addressed to the inverter.
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Blinking with CPU Trouble with the Modbus card Cycle the Inverter power. If the LED at the same problem persists, contact LG time Blinking after CPU Network communication is not done Verify that the master is specifying after during TimeOut (I/O 49) setting.
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<Common> Area accessible regardless of inverter models (Note 3) Parameter Parameter Name Unit Read/Write Data Value (Hex) Address 0x0000 Drive model 4: SV-iS5 0: 0.75 1:1.5 2:2.2 3: 3.7 4: 5.5 5: 7.5 6: 11 7: 15 8: 18.5 9: 22 A: 30 B:37 0x0001 Drive capacity...
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Parameter Parameter Name Unit Read/Write Data Value (Hex) Address BIT 7 : DC Braking BIT 8 : Stopping BIT 9 :Not Available BIT 10 : BrakeOpen BIT11: Forward Run Command BIT 12 : Reverse Run Command Bit 0:OCT1, Bit 1: OV, Bit 2: EXT-A Bit 3: BX, Bit 4:OCT2, Bit 5: GF, Bit 6: OH, Bit 7: 0x000F...
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Address Description Default Maximum Minimum Unit 5227 FU1 #39 Energy save 5232 FU1 #50 ETH select 5233 FU1 #51 ETH 1min ETH Cont 5234 FU1 #52 ETH Cont 5235 FU1 #53 Motor type 5236 FU1 #54 OL level 5237 FU1 #55 OL time 0.1sec 5238...
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Address Description Default Maximum Minimum Unit 5355 FU2 #85 2nd F-boost 0.1% 5356 FU2 #86 2nd R-boost 0.1% 5357 FU2 #87 2nd Stall 2nd ETH 5358 FU2 #88 2nd ETH 1min Cont 2nd ETH 5359 FU2 #89 2nd ETH Cont. 1min 535A FU2 #90...
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Inv No. 542F I/O #47 Baud rate 5430 I/O #48 Lost command 5431 I/O #49 Time out 1200 0.1sec <Note> If you need to know specific parameter addresses for Auto Sequence Operation, please contact LG local distributors. modbus-rtu iS5 manual.doc...
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< COM Group > Address Description Default Maximum Minimum Unit 5601 COM #01 Opt B/D 5602 COM #02 Opt mode 5603 COM #03 Opt version 1.00 Note) Inverter Station # and Baud rate Setting: I/O-46, 47 COM-01 [Opt B/D] Indicates Option boards installed. This value is automatically set when the boards are installed. COM-02 [Opt Mode] Determines whether Run/Stop/Reference Frequency is set via Communication.
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LG Industrial Systems Co., Ltd. LGIS constantly endeavors to improve its product so that information in this manual is subject to change without notice. Visit Our Website: http://www.lgis.com/ August 8, 2002 Publication #: 10310000393...