Adtech iMASTER – A1 Series User Manual page 164

A1-User's Manual
1) RXP / PXN / Connector
RXP: + Transmit/Receive Port

RXN: - Transmit/Receive Port

Program A1 Parameters to enable remote control
Code
'50.01'
'50.02'
2) RS485 Interface Description
Item
Interface
Communication method
Communication speed
Communication code
Data bits
Parity
Stop bit
Starting method
Wait time
Connection type
Error check
Communication sequence
The communication sequence is as follows
External Contorller
A1-VFD
 Frame Start:
 Frame Complete:
 Frame 1:
 Frame 2:
Minimum Maximum
1 32
0 4
Description
RS485
Half duplex
9600
Binary code
External request
10∼1000ms
1 : N (Max32)
Frame / CRC / CMD /
MAXREQ / parameter
Frame 1
Frame start is recognized by signal line data transmitted
Frame completion is recognized by no data during
4, 5-character time
Transmit from external controller to VFD
Indication reflects from VFD to external controller
Initial
Unit
Value
1 - Modbus node ID
0 - 9600bps
8
No.
1
VFD is only slave part.
Communication number is
Frame 2
Wait time
(Within 5ms )
１６０
Description
Remark
Fixing
Fixing
Fixing
Fixing
'50.01'
selected at