EXPERT Standard Series User Manual
104
There are four groups of acceleration and deceleration time parameters for this series
of drives. Other acceleration and deceleration time (2, 3, 4) are defined in parameters
F2.14 ～ F2.19.
The
factory
default
acceleration/deceleration
time
is
acceleration/deceleration time 1. To select other acceleration and deceleration time groups,
you must select them by terminal (see group F6 parameters). The acceleration and
deceleration time when the motor performs automatic tuning operation shall be executed
according to acceleration and deceleration time 1. The acceleration and deceleration times
during jog operation are set in F2.21 and F2.22 separately.
Note: The acceleration time is only valid for normal acceleration process, excluding
start DC braking time and start frequency hold time. The deceleration time is only valid
for normal deceleration process, excluding stop DC braking time.
F1.17
V/F curve setting
0～5
0
F1.18
V/F frequency value F1
0.00～F1.20
15Hz
F1.19
V/F voltage value V1
0~F1.21
30%
F1.20
V/F frequency value F2
F1.18 ~F0.22
25.00Hz
F1.21
V/F voltage value V2
F1.19~F1.23
50.0%
F1.22
V/F frequency value F3
F1.20~F3.04
35Hz
F1.23
V/F voltage value V3
F1.21~100.0%
70%
The V/F setting mode is defined in this function code group, to meet the needs of
different load characteristics. According to the definition of F1.17, you can select 3 fixed
curves and 1 custom curve.
When 1 is selected, it is a custom curve.
When 2 is selected, it is a 2.0 power reduced torque characteristic; a shown in curve 1
in Figure 6-5.
When 3 is selected, it is a 1.7 power reduced torque characteristic; a shown in curve 2
in Figure 6-5
When 4 is selected, it is a 1.2 power reduced torque characteristic; a shown in curve 3
in Figure 6-5.
When 5 is selected, it is a super startup mode. For detailed functions, refer to use
instructions of Fd.06, Fd.07 and Fd.08.
The above curves are suitable for variable torque loads of fans and pumps. Users can
adjust according to the load characteristics to achieve the best energy saving effect.
