E6580516 
,-
,-
,_,,-
.,-
(Fundamental Parameters #1) 
1·=··-
, 
,_ 
Related parameters 
V 
/f 
pattern 
CD 
IPc 
I V/fpattern 
lu 
b  I Voltage boost 
l,_,L 
I Maximum voltage frequency 
[, 
,-
.n 
l= 
In 
l= 
.P  No. of motor poles 
Inc.[ 
Motor rated capacity 
In 
l:: 
.t::  Motor type 
In 
l:: 
.u 
Motor rated voltage 
In 
l:: 
. F  Motor rated frequency 
Int::.,-
Motor rated RPM 
Constant torque, variable torque, automatic torque boost, automatic energy saving, and vector control can 
be selected for the V/f pattern. 
I 
Pc 
set to  :  I Constant torque 
characteristics 
Output 
voltage 
[%) 
100 
[Hz] 
I 
Pt:: 
set 
toe' 
I  Variable torque 
characteristics 
Output 
voltage 
[%] 
100 
[Hz] 
*If 
the voltage boost value 
is 
set too high, the motor will be overexcited, and 
an 
OL or OC trip may occur. 
In 
some cases, this may also shorten the life of the inverter. 
*  The 
voltage boost value is automatically initially set for the max. applicable motor according to the 
inverter capacity. 
If a standard motor matching the inverter capacity is used, the value does not 
necessarily need to be adjusted. Even when readjusting, setting to within 
+2% 
of the initial setting 
value 
is 
recommended. 
I 
Pc 
set to 
=:I 
Automatic torque boost 
Output 
voltage 
[%] 
100 
I 
wl 
:!output 
frequency 
[Hz] 
I 
Pc 
set to '-l I Automatic torque boost with 
automatic energy saving 
~, 
,-c•_c_s_e_t-to-S~I 
Vector control 
Motor speed fluctuations are suppressed, 
even with high torque at 
low frequencies. 
-, 
,-c•_c_s_e_t-to-E-, 
I Vector control with automatic energy saving 
The output 
voltage is closely monitored 
during the automatic torque boost (vector 
control) setting, and energy 
is 
saved by 
The 
load current is detected, and the inverter's 
output 
voltage (torque) 
is 
automatically adjusted. 
allowing only the proper amount of current 
to 
flow that is suitable for that output voltage. 
u=EJ 
andltlc.Picannot 
be changed while running.  Even iflf"J.'.:.C 
l.lnc.c 
l.lnt.,_,l.lllc.F 
I. 
Inc 
.• 
- lare changed while running, the changes will  not become valid until the motor is stopped 
(O.OOHz). 
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51 
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