Droop Control - Mitsubishi Electric FR-A820-00046 Instruction Manual

Parameters
5.16.15

Droop control

This is a function to give droop characteristics to the speed by balancing the load in proportion with
the load torque during the Advanced magnetic flux vector control, Real sensorless vector control, vec-
tor control, and PM sensorless vector control.
This is effective when balancing the load when using multiple inverters.
Pr.
286
G400
287
G401
288
G402
994
G403
995
G404
679
G420
680
G421
681
G422
682
G423
683
G424
FR-A800
Magnetic flux Magnetic flux Sensorless Magnetic flux Sensorless Sensorless Vector
Name
Droop gain
Droop filter time constant
Droop function activation
selection
Droop break point gain
Droop break point torque
Second droop gain
Second droop filter time
constant
Second droop function
activation selection
Second droop break point
gain
Second droop break point
torque
Vector Vector PM PM PM
Initial Setting
Description
value range
0 Normal operation
Droop control enabled
0%
0.1% to
Set the droop amount at the time of rated torque as
100%
% value of the rated motor frequency.
Set the filter time constant to apply to the current for
0.3 s 0 to 1 s
torque.
Without droop control
during acceleration/
0
deceleration
(With 0 limit)
Constantly droop control
during operation
1
(With 0 limit)
Constantly droop control
during operation
0 2
(Without 0 limit)
Without droop control
during acceleration/
10
deceleration
(With 0 limit)
Constantly droop control
during operation
11
(With 0 limit)
Set the droop amount to be changed as % value of
0.1 to 100%
the rated motor frequency.
9999
9999 No function
Set the torque when the droop amount is to be
100% 0.1 to 100%
changed.
0 to 100% Refer to Pr. 286
The first droop control
9999
9999 setting is applied to the
operation.
0 to 1 s Refer to Pr. 287
The first droop control
9999
9999 setting is applied to the
operation.
0, 1, 2, 10, 11 Refer to Pr. 288
The first droop control
9999
9999 setting is applied to the
operation.
0.1 to 100% Refer to Pr. 994
The first droop control
9999
9999 setting is applied to the
operation.
0.1 to 100% Refer to Pr. 995
The first droop control
9999
9999 setting is applied to the
operation.
(G) Control parameters
Rated motor frequency
is the droop
compensation
reference
Motor speed is the
droop compensation
reference
Set the second droop
control. The droop
control is enabled when
the RT signal is ON.
5 - 695