Adtech iMASTER – A1 Series - Frequency Command Source to Modbus RS-485

A1-User’s Manual
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7.5 Frequency Command Source to Modbus RS-485
 Diagram
 Programming A1 Parameters
 Set Frequency Setpoint
 Diagram
 Programming A1 Parameters
 On Keypad, program following parameters with corresponding values:
Code
Set Value
Description
22.03
3
Frequency Command by Modbus RS-485
50.01
1
Communication node (1 ~ 32)
50.02
0
Modbus baud rate (2,400bps ~ 19,200bps)
 Set Frequency Setpoint
 Integer data represents 0.01 Hz (ex: 6000 = 60.00 Hz)
 Ref to ‘8.2.23 RS-485(Modbus)’.
Terminal
connector
Signal Descriptions
RXP
RS - 485+
RXN
RS - 485-
RXP
RXN
MODBUS RS-485
Max 19.2kbps
120O
Terminating resistance
selection switch(SW1)
VFD