2
4
Parameter Description
Parameter Description
5. Parameter Description
5.1 Torque Boost (P.0, P.46) V/F
P.0 “Torque Boost”
P.46 “Second Torque Boost”
Related parameters
P.19 Base Voltage
P.80~P.84, P.86
Multi-function terminals selection
P.3 Base frequency
P.47 Secone base frequency
For an inverter controlled by the V/F mode, the starting torque is usually inadequate when starting
the motor because the output voltage of the inverter is inadequate. In this case, improve the output
voltage by setting up a proper torque boost (P.0) to obtain a better starting torque.
Parameter
Factory Setting
Setting Range
Remarks
6%(0.4Kw~0.75Kw)
4%(1.5Kw~3.7Kw)
0
3%(5.5Kw)
0~30%
---
46
9999
0~30%, 9999 9999: function invalid
<Setting>
•
If P.0=6% and
P.19
=220V, and output frequency of the inverter is 0.2Hz, the output voltage will be:
•
If RT is ‘Nn’, P.46 Second Torque Boost will be valid.
Note: 1. A too large set value of P.0 may cause actions of the current protection of the inverter or the inverter will
be disabled for a smooth start.
2. The second function is valid only when
P.44
is not equal to 9999.
3. RT in this paragraph is referred to as the multi-function control terminals. For selecting the function and
using the multi-function control terminal, please refer to
P.80~P.84, P.86
. For the wiring, please refer to
Section 3.5.6
.
the set value of
P.0
、
P.46
Output
voltage
Base frequency
Output frequency
100
％
0.2Hz
50Hz
+
P.0
(
)
P.19
×
=
220V
×
0.004
+
(
)
6%
=
14.08V
