Yaskawa G5HHP Drive - Manual (Page 274)

User Constants
8.2.1 Application Constants: b
8 - 8
J
Droop Control: b7
C t t
Name
S tti F t
Change
Control Methods
Constant
Number
Display
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
V/f
V/f
with
PG
Open
Loop
Vector
Flux
Vector
Page
b7-01
Droop control gain
Sets the slip as a percentage of
maximum frequency when the
maximum output frequency is spe-
ifi d d h d
0.0 to
0 0 f
x x x A 7 17 b7-01
Droop Gain
maximum output frequency is spe
cified and the rated torque occurs.
;
Droop-control is not performed
when the setting is 0.0.
0.0 to
100.0
0.0 f
x x x A 7 - 17
b7-02
Droop control delay
time
Droop control responsiveness
constant
;
Wh h ti ill ti
0.03 to
2 00
0.05 f x x x A 7 - 17 b7 02
Droop Delay Time
; When hunting or oscillation oc-
curs, increase the value.
2.00
0.05 f x x x A 7 - 17
J
Energy Saving: b8
C t t
Name
S tti F t
Change
Control Methods
Constant
Number
Display
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
V/f
V/f
with
PG
Open
Loop
Vector
Flux
Vector
Page
b8-01
Energy-saving gain
Sets the Inverter output voltage
when the energy-saving command
is input.
;
Enabled when the “energy-sav- 0 to 100 80 x A A x x
7 - 12
b8-01
Energy Save Gain
; Enabled when the “energy-sav-
ing mode” command is set for
multi-function input. Set as a
percentage of the V/f pattern
voltage.
0 to 100 80 x A A x x
7 12
7 - 35
b8-02
Energy-saving fre-
quency
Sets the energy-saving effective
range minimum frequency in Hz.
;
The energy-saving function is
only enabled when the frequency
0.0 to
150 0
0.0 x A A x x
7 - 12
7 35
b8 02
Energy Save Freq
only enabled when the frequency
is greater than the energy-saving
frequency and the speeds are
consistent.
150.0
0.0 x A A x x
7 - 35
J
Zero Servo: b9
C t t
Name
S tti F t
Change
Control Methods
Constant
Number Display
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
V/f
V/f
with
PG
Open
Loop
Vector
Flux
Vector
Page
b9-01
Zero-servo gain
Used to adjust the strength of the
zero-servo lock.
;
Enabled when the “zero-servo
command” is set for the multi-
function input. When the zero-
servo command has been input
and the frequency reference 0 to 100 5 x x x x A 7 18 b9-01
Zero Servo Gain
and the frequency reference
drops below excitation level
(b2-01), a position control loop
is created and the motor stops.
Increasing the zero-servo gain in
turn increases the strength of the
lock. Increasing it by too much
will cause oscillation.
0 to 100 5 x x x x A 7 - 18
8