SHENZHEN ENCOM ELECTRIC TECHNOLOGIES CO. enc eds800-2s0002n User Manual page 60

F0.14，its characteristic is boost voltage fixed，but the motor is prone to magnetic
saturation when lightly loaded.
1: automatic torque boost. Torque boost voltage varies as stator current of the
motor changes，bigger stator current corresponds to bigger boost voltage.
Boost volt.=
F0.14 Torque boost
To improve inverter's low frequency torque characteristic，can carry on boost
compensation for output voltage，degressive torque curve and constant torque curve
torque boost are separately shown as Fig.6-4 (a), (b).
motor rated volt.
Volt.
Boost
(a)degressive torque curve torque boost graph
Improper setting to this parameter can cause motor heating or over current protection.
note
F0.15 V/F curve setting
This function code defines EDS800 flexible V/F setting mode to satisfy
different load characteristic. Can choose 4 kinds of fixed curve according to
definition of F0.15.
If F0.15=0，V/F curve bears constant torque characteristic；as curve 0 in
Fig.6-5.
If F0.15=1，V/F curve bears 2.0 order power degressive torque characteristic；
as curve 3 in Fig.6-5.
If F0.15=2，V/F curve bears 1.7 order power degressive torque characteristic；
as curve 2 in Fig.6-5.
If F0.15=3，V/F curve bears 1.2 order power degressive torque characteristic；
as curve 1 in Fig.6-5.
The user can choose 1, 2, 3 V/F curve run mode according to load characteristic
to reach better energy save result while the inverter is driving degressive torque load
EDS800 series Service Manual
F0.14
×motor rated volt.×
100
Range：0.0－20.0(％)
voltage
rated freq.
Fig.6-4 torque boost graph
inverter output current
2×inverter rated current
voltage
motor rated volt.
Volt.
Freq.
Boost
(b) constant torque curve torque boost graph
Range：0～4
55
4.0(％)
Freq.
rated freq.
0