Mitsubishi Electric MELSOFT FR Configurator2 Instruction Manual page 39

• 700 series
Pr.
117 PU communication station number
118 PU communication speed
PU communication stop bit length / data
119
length
120 PU communication parity check
122 PU communication check time interval
123 PU communication waiting time setting 9999
PU mode operation command source
*1*2
551
selection
*1 Pr.551 can be always written regardless of the operation mode.
*2 The setting range depends on the inverter. For the details, refer to the Instruction Manual of the inverter.
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.
• To change an inverter parameter value, use the operation panel or parameter unit. Only one of the operation unit and FR
Configurator2 (personal computer) can be connected to the PU connector.
• For details on each inverter communication parameter, refer to the Instruction Manual (Detailed) of the inverter.
• Parameter clear/All parameter clear by the operation panel or the parameter unit clears communication parameter settings
and disables the communication with FR Configurator2.
38
1. OUTLINE
1.4 Connection and parameter setting
Initial
Name
value
0
192
1
2
9999
9999
Setting range
Inverter station number specification.
0 to 31 Set the inverter station numbers when two or more
inverters are connected to one personal computer.
Set the communication speed.
The setting value × 100 equals the communication
48, 96, 192, 384 speed.
For example, if 192 is set, the communication speed is
19200 bps.
0 Stop bit length 1 bit
1 Stop bit length 2 bits
10 Stop bit length 1 bit
11 Stop bit length 2 bits
0 Without parity check
1 With parity check at odd numbers
2 With parity check at even numbers
0 PU connector communication is disabled.
Set the communication check time interval.
If a no-communication state persists for longer than
0.1 to 999.8 s
the permissible time, the inverter output will be 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 response.
9999 Set with communication data.
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.
The operation panel is the command interface enabled
4
in the PU operation mode.
The Ethernet connector is the command interface in
5
the 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
Data length 8
bits
Data length 7
bits