Operation Command Source And Speed Command Source During Communication Operation (Pr. 338, Pr. 339, Pr. 550, Pr. 551) - Mitsubishi Electric FR-F740 EC Instruction Manual

Selection of operation mode and operation location
6.17.3 Operation command source and speed command source during
communication operation (Pr. 338, Pr. 339, Pr. 550, Pr. 551)
When the inverter RS485 terminals or communication option is used, the external operation
command and speed command can be made valid. Also, the control command source in the PU
operation mode can be selected.
Pr.
Name
No.
Communication
338
operation command
source
Communication speed
339
command source
NET mode operation
550
command source
selection
PU mode operation
551
command source
selection
The above parameters can be set when Pr. 160 = 0. However, the parameters can be set whe-
never the communication option is connected. (Refer to section 6.16.4.) It can also be changed
independent of the operation mode.
Pr 550 and Pr. 551 are always write-enabled.
Select the control source of the network operation mode (Pr. 550)
Either the inverter RS485 terminals or communication option can be specified as the source of
control in network operation mode.
For example, set Pr. 550 to "1" when executing parameter write, start command or frequency
setting from the inverter RS485 terminals in the network operation mode independent of wheth-
er the communication option is connected or not.
NOTE Since Pr. 550 = 9999 (Automatic recognition of the communication option) in the initial set-
ting, parameter write, start command and frequency setting cannot be executed by commu-
nication using the inverter RS485 terminals when the communication option is fitted.
(Monitor and parameter read can be performed.)
6 - 244
Initial Setting
Description
Value Range
Operation command source
0
communication
0
1 Operation command source external
0 Speed command source communication
Speed command source external (Fre-
quency setting from communication is
1
invalid, terminal 2 and 1 setting from
0 external is valid)
Speed command source external (Fre-
quency setting from communication is
2
valid, terminal 2 and 1 setting from exter-
nal is invalid)
0 Communication option valid
1 Inverter RS485 terminal valid
Automatic recognition of the communi-
9999
cation option
9999 Normally, the RS485 terminals are valid.
When the communication option is fitted,
the communication option is valid.
Select the inverter RS485 terminals as
1
the PU operation mode control source.
2
Select the PU connector as the PU opera-
2
tion mode control source.
Parameter
Parameters referred to
28 Multi-speed input
compensation
selection
59 Remote function
selection
79 Operation mode
selection
Refer to
Section
6.5.3
6.5.4
6.17.1