Mitsubishi Electric FR-D720S SC EC, Инструкция по эксплуатации, Страница: 162 / 512

Parameter overview Parameter
6 - 12
These parameters are communication parameters that are not cleared when parameter
clear (all clear) is executed from RS485 communication. (Refer to section 6.18 for RS485
communication).
Func-
tion
Parameter
Name
Incre-
ments
Initial
value
Setting
range
Description
Para-
meter
copy
Para-
meter
clear
All
Para-
meter
clear
Refer
to
page
Rel
a
ted
pa
ramet
e
rs
✔
: enabled
—: disabled
Communication initial setting
117
PU communication
station
1 0
0–31
(0–247)
Set the inverter station numbers
when two or more inverters are
connected to one personal compu-
ter.
When "1" (Modbus-RTU protocol)
is set in Pr. 549, the setting range
within parantheses is applied.
✔ ✔ ✔
6-198
118
PU communication
speed
1 192
48/96/
192/384
Set the communication speed. The
setting value
×
100 equals the
communication speed.
For example, the communication
speed is 19200bps when the set-
ting value is "192".
✔ ✔ ✔
119
PU communication
stop bit length
1 1
0
Stop bit length: 1bit
data length: 8bit
✔ ✔ ✔
1
Stop bit length: 2bit
data length: 8bit
10
Stop bit length: 1bit
data length: 7bit
11
Stop bit length: 2bit
data length: 7bit
120
PU communication
parity check
1 2
0
Without parity check
(for Modbus-RTU: stop bit length:
2bit)
✔ ✔ ✔
1
With odd parity check
(for Modbus-RTU: stop bit length:
1bit)
2
With even parity check
(for Modbus-RTU: stop bit length:
1bit)
121
Number of PU
communication retries
1 1
0–10
If the number of consecutive
errors exceeds the permissible
value, the inverter will come to an
alarm stop.
✔ ✔ ✔
9999
If a communication error occurs,
the inverter will not come to an
alarm stop.
122
PU communication
check time interval
0.1s 9999
0 No PU connector communication
✔ ✔ ✔
0.1–999.8s
Set the communication check time
interval. If a no-communication
state persists for longer than the
permissible time, the inverter will
come to an alarm stop.
9999 No communication check
123
PU communication
waiting time setting
1 9999
0–150ms
Set the waiting time between data
transmission to the inverter and
response.
✔ ✔ ✔
9999 Set with communication data.
Tab. 6-1: Parameter overview (12)