Omron M1 Series User Manual page 678

8 Communications Functions
*3. After receiving data from the master inverter, the management inverter sends the next master switching com-
mand with a wait time of "silent interval + Communication Wait Time (y19)." If the management inverter cannot
receive the data sent from the master inverter within the Communication Error Timeout Time (y18), a commu-
nication timeout occurs and the management inverter follows the operation set in the Operation Selection on
Communication Error (y12).
*4. Be sure to enable the Communication Error Timeout Time setting (y18 = 0.01 to 99.99) on the management
inverter. When this setting is disabled (y18 = 0), the co-inverter communication will stop if the management
inverter cannot receive data from the master inverter. In this case, cycle the power supply for the manage-
ment inverter, or reset the management inverter (by turning ON/OFF the terminal RS).
8-8-1 Co-inverter Communication Parameters
The parameters required to establish co-inverter communication are shown in the table below.
Parameter No.
*2
y11
*5
y12
y13
y14
y16
y18
8-28
Function name
RS-485 Communica-
1 to 255
tion Station No. Se-
(250 to 255: Simultaneous
lection
broadcasting by group)
0: Immediately trip with alarm
ErP
1: Trip with alarm ErP after run-
ning for the period specified by
timer y003
2: Retry during the period
Operation Selection
specified by timer y003. If the
on Communication
retry fails trip with alarm ErP. If
Error
it succeeds continue to run.
3: Continue to run
11: Trip with alarm ErP after de-
celeration stop
13: Free run stop
14: Deceleration stop
RS-485 Error Detec-
0.0 to 60.0 s
tion Timer
0: 2400 bps
1: 4800 bps
2: 9600 bps
RS-485 Communica- 3: 19200 bps
tion Baud Rate 4: 38400 bps
5: 57600 bps
6: 76800 bps
7: 115200 bps
0: None (Stop bit: 2 bits)
1: Even number parity (Stop bit:
RS-485 Communica-
1 bits)
tion Parity Bit Selec-
2: Odd number parity (Stop bit:
tion
1 bits)
3: None (Stop bit: 1 bits)
0: Not check of the time-out
RS-485 Communica-
(OFF)
tion Timeout Time
1 to 60 s
Default da-
Data
*3
M1 Series Standard Type User's Manual (I669)
Setting
Unit
*1
ta
target
1 - *4
ALL
0 - ALL
2.0 s ALL
2 - ALL
3 - ALL
0.0 s ALL