Chapter-11 Serial Communication Set Up; Connection Method; Connecting The Host Computer And Axpert-Eazy (1-To-1) - Amtech Axpert-Eazy Series Instruction Manual

CHAPTER-11: SERIAL COMMUNICATION SET-UP
The Axpert-Eazy Drive is equipped with a serial communication function using RS485 as a standard.
It acts as a Modbus slave in the network. The unit can be controlled with a host computer (master)
using this function.
The primary introduction of ModBus protocol is provided in the document. For detail information
please refer "Modicon ModBus Protocol Reference Guide PI–MBUS–300 Rev. J".

11-1 Connection method

This network is configured of one host computer (master) and 1 to 32 max Axpert-Eazy units (slaves).
TB1 on main control board is used for the connection.
Refer to Chapter-2 Installation and Wiring for wiring the control signal and for the wiring methods.
The total length of the connected cable must be within 300mt (1000ft).
By using a commercially available RS485-RS232C converter or USB converter unit, the inverter can
be connected to a host computer equipped with a serial port or USB, such as a commercially
available personal computer.
The details of the TB1 terminal section are shown below.
TB1
P15 0V VIN IIN VO2
FSV FSI 0V VO1

11-2 Connecting the host computer and Axpert-Eazy (1-to-1)

HOST
COMPUTER
(Master)
RS485
AXPERT
EAZY
TB1
Shielded twisted cable
Axpert-Eazy AC Variable Frequency Drive
IO1 CANH RUN PSI6 COM PSI2 PSI4 +24V PSO1 PSO3 COM
0V IO2 CANL STOP +24V PSI1 PSI3 PSI5 COM PSO2 PSO4
RS232
RS232
RS485
VCC GND DATA+ DATA-
RX
PSO3 COM
PSO4
TX
Fig. 11-1
HOST
COMPUTER
(Master)
RS232
AXPERT
RS485
EAZY
TB1
Fig. 11-2
RX
PB
COM PBN PAN COM
TX
'RX' and 'TX' are used for serial
communication
RS232/RS485
Converter
PB
TB1
COM PBN
RS232
RS232/RS485 AXPERT
Converter
EAZY
TB1
Shielded twisted cable
PA +5V
HOST
COMPUTER
(Master)
USB
USB
USB/RS485
Converter
RS485
11.1
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