Functio n
Cod e
Name
Setting Range
Default
Value
F1.24
Energy Conserv ation
Selecti on
0:No Operation
1:Energ y Conservation
0
When the mot or is running in no-load or lower-load during,the inverter can
output voltage
by
adjust
automatically c urrent kf the load
。
Note:This function is especi ally valid for variable torque load (such as fan and pump).
Fig. 6-7 Manual torque boost di agram
It se ts up S1-S6, VI and C I terminals sampl e filt eri ng t ime. In big inter ference situati on, this parameter
should be inc reased i n orde r to prevent mal operation.
O utput F requenc y f
Output Volta ge (V)
f
cu t -of f
V
b o ost
V
b
f
b
Set ti ng this parameter can compensate t he motor speed change produced because of undert aki ng
l oading whi le on V/F control, to increase the rigi dit y of motor mecha nical performance. This value
s hould be set as the motor rated slip frequency.
F2 Input and Output Terminal Function Paramete rs
F1.2 3
V/F slip compensation limit 0.0 200.0%
～
100%
Functio n
Cod e
Name
Setting Range
Default
Value
F2.00
On- off signa l filter times
1
10
～
5
Functio n
Cod e
Name
Setting Range
Default
Value
Chapter 6 Para meter Description
DZB Series
-4 4 -
Function
Code
Nam e
Setting Range
D efault
Value
F1.20
V/F c urve se tting
0
Linear V/F c urve
：
1
square torque V/F cur ve
：
0
The setting 100.0% is c orresponding to the rat ed output current.
0: Linear V/F curve. It is applicable to constant torque l oad.
1: 2.0 exponential V/F curve. It is applicable to variable torque l oad, such as blower, pump etc.
Fig. 6-6 V/F curvedi agram
Torque Boost is mainly applied to less than cut-off frequency (F1.22). The V/F curve after boost i s
shown in following figure . Torque booth can improve the l ow frequency torque performance of V /F c ontrol .
Ba sed on the load, a torque should be chosen properly. F or heavy load, increase the torque boost , but
the torque boost s hould not be set too big, which wil l result in the motor operating at overexcitation and
tha t it could be ove rheated, and also t he inverter out put current is big, reduci ng efficiency.
When the torque boost is set as 0.0%, the i nvert er is at automatic torque boos t.
Torque boost cut-off f requency: below thi s fre quency, torque boos t is valid, and above t his frequency
setting, torque boost is invalid.
b
f
b
V
b
f
3
/
1
Output Volta ge (V)
Out pu t Frequency f
Lin ear V/F curve
2.0 exponential
V/F c urve
F1.19
Up per torque l imit setting
0.0
20 0.0%(inverter r ate d c urrent)
～
150.0%
Function
Code
Nam e
S etting Range
D efault
Value
F1.2 1
Torque boost
0.0 % ( auto)
：
0.1
30.0
％～
％
0
F1.22
Torque boost cu t-off
0.0% 50.0% (relative to motor
rated frequency)
～
20.0%
Function
Code
Nam e
S etting Range
D efault
Value
Cha pter 6 Parameter D es cription
DZB Series
- 43-
BLUE ELEPHANT BLUE ELEPHANT BLUE ELEPHANT BLUE ELEPHANT
BLUE ELEPHANT BLUE ELEPHANT BLUE ELEPHANT BLUE ELEPHANT
BLUE ELEPHANT BLUE ELEPHANT BLUE ELEPHANT BLUE ELEPHANT
BLUE ELEPHANT BLUE ELEPHANT BLUE ELEPHANT BLUE ELEPHANT
BLUE ELEPHANT BLUE ELEPHANT BLUE ELEPHANT BLUE ELEPHANT
BLUE ELEPHANT BLUE ELEPHANT BLUE ELEPHANT BLUE ELEPHANT
