Mitsubishi Electric F700 User Manual

167
Selection of operation mode and
operation location
4
PARAMETERS
4.18.3 Operation command source and speed command source during
communication operation (Pr. 338, Pr. 339, Pr. 550, Pr. 551)
(1) Select the control source of the network operation mode (Pr. 550)
⋅ Either the RS-485 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 RS-485
terminals in the network operation mode independently of whether the communication option is connected or not.
(2) Select the control source of the PU operation mode (Pr. 551)
⋅ Either the PU connector or RS-485 terminals can be specified as the source of control in the PU operation mode.
⋅ When performing parameter write, giving start command and setting frequency from communication with the RS-
485 terminals in PU operation mode, set "1" in Pr. 551.
*1 The Modbus-RTU protocol cannot be used in the PU operation mode. When using the Modbus-RTU protocol, set Pr. 551 to "2".
*2 When the communication option is not fitted, the operation mode cannot be switched to network operation mode.
When the RS-485 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.
Parameter
Number
Name
Initial
Value
Setting
Range
Description
338
Communication operation
command source
0
0 Operation command source communication
1 Operation command source external
339
Communication speed
command source
0
0 Speed command source communication
1
Speed command source external (Frequency setting from
communication is invalid, terminal 2 and 1 setting from external is
valid)
2
Speed command source external (Frequency setting from
communication is valid, terminal 2 and 1 setting from external is
invalid)
550
*
NET mode operation
command source
selection
9999
0 Communication option valid
1 RS-485 terminals valid
9999
Automatic recognition of the communication option
Normally, the RS-485 terminals are valid. When the communication
option is fitted, the communication option is valid.
551 *
PU mode operation
command source selection
2
1
Select the RS-485 terminals as the PU operation mode control source.
2 Select the PU connector as the PU operation mode control source.
The above parameters can be set when Pr. 160 User group read selection = "0". However, the parameters can be set whenever the communication
option is connected. (Refer to page 156.)
* Pr 550 and Pr. 551 are always write-enabled.
CAUTION
⋅ Since Pr. 550 = "9999" (automatic recognition of the communication option) in the initial setting, parameter write, start command
and frequency setting cannot be executed by communication using the inverter RS-485 terminals when the communication option
is fitted. (Monitor and parameter read can be performed.)
CAUTION
⋅ The PU operation mode has a higher priority when Pr. 550 = "1" (NET mode RS-485 terminals) and Pr. 551 = "1" (PU mode RS-485 terminals).
When the communication option is not fitted, therefore, the operation mode cannot be switched to network operation mode.
Pr. 550
Setting
Pr. 551
Setting
Operation Mode of Control Source
Remarks
PU connector RS-485 terminals Communication option
0
1 ×
PU operation mode
*1
NET operation mode *2
2 (initial value) PU operation mode × NET operation mode *2
1
1 ×
PU operation mode
*1
×
Switching to NET
operation mode disabled
2
(initial value) PU operation mode NET operation mode ×
9999
(initial value)
1 × PU operation mode *1 NET operation mode *2
2 (initial value) PU operation mode
× NET operation mode
Communication option fitted
NET operation mode × Communication option not fitted

Mitsubishi Electric F700 Specifications

General

Brand	Mitsubishi Electric
Model	F700
Category	Inverter
Language	English