Mitsubishi Electric FR-A800 Series Instruction Manual page 402

NOTE
• When Pr.550 = "1" (NET mode RS-485 terminals) and Pr.551 = "1" (PU mode RS-485 terminals), the PU operation mode has
a precedence. For this reason, if the communication option is not mounted, switching to the Network operation mode is no
longer possible.
• Changed setting values are enabled at power-ON or inverter reset.
Pr.550 Pr.551
setting setting
1
2
0
3
9999
(initial
value)
1
2
1
3
9999
(initial
value)
1
2
9999
(initial
value)
3
9999
(initial
value)
*1 The MODBUS RTU protocol cannot be used in the PU operation mode. To use the MODBUS RTU protocol, set Pr.551 = "2".
*2 If the communication option is not mounted, switching to the NET operation mode is not possible.
*3 When Pr.551 = "9999", the priority of the PU command source is USB connector > PU connector.
Downloaded from ManualsNet.com
PU connector USB connector
× ×
PU operation mode ×
× PU operation mode ×
PU operation mode PU operation mode
*3 *3
× ×
PU operation mode ×
× PU operation mode
PU operation mode PU operation mode
*3 *3
× ×
PU operation mode ×
× PU operation mode
PU operation mode PU operation mode
*3 *3
search engine
Command source
RS-485 terminals
PU operation mode NET operation
*1
mode
NET operation
×
mode
NET operation
mode
NET operation
×
mode
PU operation mode
×
*1
NET operation
×
mode
NET operation
×
mode
NET operation
×
mode
PU operation mode NET operation
*1
mode
NET operation
×
mode
NET operation
×
mode
NET operation
×
mode
NET operation
×
mode
NET operation
×
mode
NET operation
×
mode
5.9 (D) Operation command and frequency command
Communication
option
*2
*2
*2
*2
Switching to NET operation mode
disabled
*2
With communication option
*2
Without communication option
With communication option
*2
Without communication option
With communication option
*2
Without communication option
1
2
3
Remarks
4
5
6
7
8
9
10
401
5. PARAMETERS