Communication parameter group 07
PARAMETER DESCRIPTION 205
Parameter
Name
Default Setting Range
Content
07-27
P.812
PU Serial
communication baud
rate
1
0
Baud rate 4800bps
1
Baud rate 9600bps
2
Baud rate 19200bps
3
Baud rate 38400bps
4
Baud rate 57600bps
5
Baud rate 115200bps
07-28
P.813
PU data length
0
0
8bit
1
7bit
07-29
P.814
PU stop bit
0
0
1bit
1
2bit
07-30
P.815
PU Parity check option 0
0
no parity check
1
odd check
2
even check
07-31
P.816
PU CR/LF selection
1
1
CR only
2
Both CR and LF
07-32
P.817
PU Modbus
communication format
4
0
1、7、N、2 (Modbus, ASCII)
1
1、7、E、1 (Modbus, ASCII)
2
1、7、O、1 (Modbus, ASCII)
3
1、8、N、2 (Modbus, RTU)
4
1、8、E、1 (Modbus, RTU)
5
1、8、O、1 (Modbus, RTU)
07-33
P.818
PU
Number
of
communication retries
1
0～10
If communication error times exceed 07-33 (P.818) and
07-35 (P.820) is set to 0, PUE alarm will trigger.
07-34
P.819
PU communication
interval allowed time
99999
0～999.8s
Check communication timeout with the set value
99999
Off
07-35
P.820
PU communication
error handling
1
0
Alarm and stop freely.
1
No alarm and continue running
07-41
P.826
Expansion
communication card
number of
communication retries
1
0～10
If communication error times exceed 07-41 (P.826)
value
and 07-42 (P.827) is set to 0, CbE
alarm will trigger.
07-42
P.827
Expansion
communication card
communication error
handling
1
0
Alarm and idling and stopping
1
No alarm and continue running
07-43
P.828
Expansion
communication card
communication interval
allowed time
99999
0～999.8s
Check communication timeout with the set value
99999
Off
Shihlin protocol and Modbus protocol
If any communication parameter is changed, please power off and restart inverter.
SA3 series inverters offer two protocols to choose from: Shihlin protocol and Modbus protocol. Parameters
07-02(P.32)/07-27（P.812）、07-01(P.36)/07-26(P.811)、07-08(P.52)/07-33(P.818)、07-09(P.53)/07-34(P.819)、
07-10(P.153)/07-35(P.820)
are
for
both
protocols.
Parameter
07-03(P.48)~07-06(P.51)/07-28(P.813)~07-31(P.816) only applies to Shihlin protocol and parameter
07-07(P.154)/07-32(P.817)applies only to Modbus protocol. Please refer to communication protocol for details.
Setting
