Mitsubishi Electric MELSOFT FR Configurator2 Instruction Manual page 51

• 700 series
Pr.
117 PU communication station number
122 PU communication check time interval
123 PU communication waiting time setting 9999
331 RS-485 communication station number 0
RS-485 communication check time
336
interval
RS-485 communication waiting time
337
setting
549 Protocol selection
NET mode operation command source
550
selection
PU mode operation command source
*4
551
selection
*1 When "1" (MODBUS RTU protocol) is set in Pr.549, the setting range within parentheses is applied.
*2 When a value outside the setting range is set, the inverter operates at the initial value.
*3 Pr.549 = "0" (Mitsubishi inverter (Computer link) protocol).
*4 Pr.551 can be always written regardless of the operation mode.
NOTE
• Always reset the inverter after making the setting of the parameters. After you have changed the communication-related
parameters, communication cannot be established until the inverter reset.
50
1. OUTLINE
1.4 Connection and parameter setting
Initial
Name
value
0
0
0 s
9999
0
9999
9999
Setting range
Set the inverter station number.
0 to 31
Set the inverter station numbers when two or more
*1*2
(0 to 247)
inverters are connected to one personal computer.
RS-485 communication can be made. Note that a
communication fault (E.PUE) occurs as soon as the
0
drive unit is switched to the operation mode with
command source.
Communication check (signal loss detection) time
interval.
0.1 to 999.8 s If a no-communication state persists for the
permissible time or longer, the inverter output is shut
off. (The operation depends on the Pr.502 setting.)
9999 No communication check (signal loss detection).
Set the waiting time between data transmission to the
0 to 150 ms
inverter and the response.
9999 Set with communication data.
Set the inverter station number.
0 to 31 Set the inverter station numbers when two or more
inverters are connected to one personal computer.
RS-485 communication is enabled. However, the
0 inverter output is shut off if operation is changed to
NET operation mode.
Set the interval of communication check (signal loss
detection) time. If a no-communication state persists
0.1 to 999.8 s
for the permissible time or longer, the inverter output is
shut off.
9999 No communication check (signal loss detection)
Set the waiting time between data transmission to the
0 to 150 ms
inverter and response.
9999 Set with communication data.
*3 Mitsubishi inverter protocol (computer link)
0
1 MODBUS RTU protocol
The communication option is the command interface
0
enabled in the NET operation mode.
The RS-485 terminals are the command interface
1
enabled in the NET operation mode.
Communication option is recognized automatically.
Basically, the RS-485 terminals are the command
9999
interface. When the communication option is installed,
the communication option is the command interface.
The RS-485 terminals are the command interface
1
enabled in the PU operation mode.
The PU connector is the command interface enabled
2
in the PU operation mode.
The USB connector is the command interface in the
3
PU operation mode.
USB automatic recognition
Basically, the operation panel (PU connector) is the
9999
command interface. When the USB connector is used,
it is the command interface.
Description