54
Note:
1.
Accel & Decel S-Curves ( 1 or 2 ) can be selected by using the multifunctional input
terminals along with the programming of (Fn_56) (Fn_57) or (Fn_58 to (4).
2.
The S-Curve function is disabled when (Fn_80) (Fn_81) is set to (0).
3.
The S-Curve ramp pattern will reflect the ramp pattern above if the S-Curve time in
(Fn_80) (Fn_81) is greater than (0).
4.
Total Actual Accel and Decel times are calculated by adding the actual Accel and Decel
with the S-Curve time.
Fn_82:
Energy Savings:
xx00:
Energy saving disable
xx01:
Energy saving controlled by multi-input terminals using pre-set speed functions
Fn_83:
Energy saving gain: 0 - 100 %
100
12.5
0
50
100
P
er
cen
l T
o
rq
u
c and
H
o
rs
ep
ow
er
Percent Speed
Torque
Horsepower
1. This function can be applied to Fans or Pumps that have loads with high starting inertia. In
these types of applications where the load is heavy during start-up but tapers off to a variable
torque type load at some point in the ramp curve, using function (Fn_83) to adjust the suitable
gain (voltage level) at the target speed will reduce the V/Hz ratio saving energy.
2. The Energy saving function is available only if (Fn_56) (Fn_57) or (Fn_58) (multi-function
input) are set to (08) or (24).
3. When (Fn_82) is set to (xx01) and (Fn_56) (Fn_57) or (Fn_58) are set to (08) When the
multi-function input terminal is turned ON, the output voltage will decrease gradually to the
previous output voltage x (Fn_83). When the input terminal is turned off, the output voltage
will increase to the previous voltage gradually.
Activation of Energy
Circuit
