38
1. OUTLINE
1.4 Connection and parameter setting
• 700 series
*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.
Pr.
Name
Initial
value
Setting range
Description
117
PU communication station number
0
0 to 31
Inverter station number specification.
Set the inverter station numbers when two or more
inverters are connected to one personal computer.
118
PU communication speed
192
48, 96, 192, 384
Set the communication speed.
The setting value × 100 equals the communication
speed.
For example, if 192 is set, the communication speed is
19200 bps.
119
PU communication stop bit length / data
length
1
0
Stop bit length 1 bit
Data length 8
bits
1
Stop bit length 2 bits
10
Stop bit length 1 bit
Data length 7
bits
11
Stop bit length 2 bits
120
PU communication parity check
2
0
Without parity check
1
With parity check at odd numbers
2
With parity check at even numbers
122
PU communication check time interval
9999
0
PU connector communication is disabled.
0.1 to 999.8 s
Set the communication check time interval.
If a no-communication state persists for longer than
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)
123
PU communication waiting time setting
9999
0 to 150 ms
Set the waiting time between data transmission to the
inverter and response.
9999
Set with communication data.
551
PU mode operation command source
selection
9999
1
The RS-485 terminals are the command interface
enabled in the PU operation mode.
2
The PU connector is the command interface enabled
in the PU operation mode.
3
The USB connector is the command interface in the
PU operation mode.
4
The operation panel is the command interface enabled
in the PU operation mode.
5
The Ethernet connector is the command interface in
the PU operation mode.
9999
USB automatic recognition
Basically, the operation panel (PU connector) is the
command interface. When the USB connector is used,
it is the command interface.
