Mitsubishi Electric FR-A720-0.4K Instruction Manual page 518

6 Setting multiple parameters as a batch (Pr.999)
 Parameter settings are changed as a batch. Those include communication parameter settings for the
Mitsubishi human machine interface (GOT) connection, rated frequency settings of 50Hz/60Hz, and
acceleration/deceleration time increment settings.
 Multiple parameters are changed automatically. Users do not have to consider each parameter
number. (Automatic parameter setting mode)
Parameter
Number
999 Automatic parameter setting
*1
*1 This parameter allows its setting to be changed in any operation mode even if "0 (initial value)" is set in Pr. 77 Parameter write selection.
*2 The read value is always "9999."
(1) Automatic parameter setting (Pr.999)
 Select which parameters to be automatically set, and set that to Pr. 999. Multiple parameter settings are
changed automatically. Refer to page 22 for the list of parameters that are changed automatically.
Pr.999
setting
Automatically sets the communication parameters for the GOT
10
connected with a PU connector
Automatically sets the communication parameters for the GOT
11
connected with RS-485 terminals
50Hz rated frequency Sets the related parameters of the
20
21 60Hz rated frequency
30 0.1s increment
31 0.01s increment
REMARKS
If the automatic setting is performed, the selected settings including the changed parameter settings will be changed.
Initial
Name
Value
9999
Description
rated frequency according to the power
supply frequency
Changes the setting increments of
acceleration/deceleration time
parameters without changing
acceleration/deceleration settings
(Lit)
<Automatic parameter setting mode>
Setting Range
10 GOT initial setting (PU connector)
11 GOT initial setting (RS-485 terminals)
20 50Hz rated frequency
21 60Hz rated frequency
*2
Acceleration/deceleration time
30
(0.1s increment)
Acceleration/deceleration time
31
(0.01s increment)
9999 No action
—
—
—
21/24
Description
Operation in the automatic parameter
setting mode
(AUTO)  (GOT) Write "1"
(AUTO)  (F50) Write "1"
(AUTO) 
Always displayed as "0" when the
parameter is read.
Write "1" to select the automatic
setting. Pressing in the "0"
setting displays the next Pr.
(Lit)
BCN-C22005-634
(T0.01) Write "1"
Flickers