Output Voltage - Hitachi L300P Series Instruction Manual

3–16
"A" Group: Standard Functions
Func.
Name
Code
A041 Torque boost method
selection
A241 Torque boost method
selection, 2nd motor
A042 Manual torque boost
value
A242 Manual torque boost
value, 2nd motor
A043 Manual torque boost
frequency adjustment
A243 Manual torque boost
frequency adjustment,
2nd motor
A044 V/f characteristic curve
selection, 1st motor
A244 V/f characteristic curve
selection, 2nd motor
A045 V/f gain setting
The V/f free-setting endpoint f7/V7
parameters must stay within the more
basic inverter limits in order for the
specified free-setting characteristic
curve to be achieved. For example, the
inverter cannot output a higher voltage
than the input voltage or the AVR
setting voltage (Automatic Voltage
Regulation), set by parameter A082.
The graph to the right shows how the
inverter input voltage would clip (limit)
the characteristic curve if exceeded.
The following table shows the methods of torque control selection.
"A" Function
Description
Two options:
00 Manual torque boost
01 Automatic torque boost
Two options (for 2nd
motor):
00 Manual torque boost
01 Automatic torque boost
Can boost starting torque
between 0 and 20% above
normal V/f curve, from 0 to
1/2 base frequency
Can boost starting torque
between 0 and 20% above
normal V/f curve, from 0 to
1/2 base frequency
Sets the frequency of the
V/f breakpoint A in graph
(top of previous page) for
torque boost
Sets the frequency of the
V/f breakpoint A in graph
(top of previous page) for
torque boost
Three torque control modes:
00 V/f constant torque
01 V/f variable torque
02 V/f free-setting curve
Three torque control modes:
00 V/f constant torque
01 V/f variable torque
02 V/f free-setting curve
Sets voltage gain of the
inverter from 20 to 100%

Output voltage

V7
Voltage to output or AVR voltage
V6
B101 to
B113
0
(odd)
B100 to B112
Defaults
Run
Mode
Edit
–FE2 –FU2 –FR
Lo Hi
(EU) (US) (JP)
✘ ✘
00 00 00
✘ ✘
00 00 00
✔ ✔
1.0 1.0 1.0
✔ ✔
1.0 1.0 1.0
✔ ✔
5.0 5.0 5.0
✔ ✔
5.0 5.0 5.0
✘ ✘
00 01 00
✘ ✘
00 01 00
✔ ✔
100. 100. 100.
Output
frequency
f6 f7 Hz
(even)
SRW Display
Units
— >A041 V-Boost
Mode MANUAL
—
>A241 2V-Boost
Mode MANUAL
— >A042 V-Boost
Code 01.0%
— >A242 2V-Boost
Code 01.0%
%
>A043 V-Boost
F 05.0%
% >A243 2V-Boost
F 05.0%
— >A044 Control
1st VC
—
>A244 2Control
2nd VC
% >A045 V-Gain
Gain 100%