A4-2 Setting Of V/F Pattern Selection (Sn-02) - YASKAWA Varispeed-616GII Instruction Manual

A4-2 Setting of V/f Pattern Selection (Sri-02)
The V/f pattern selector
switch (Sri-02) has been factory-set at the
notch Ol
for most applications .
For specific
applications such as fans and pumps,
high-starting torques, or machine
tools, select the optimum
V/f
pattern for
motor running, according
to the load
characteristics . (See Table 13 .)
IF Sn-02 is set to OF , arbitrary
V/f pattern can be selected
with control
constants
1 to 7 .
Table 13 V/f Pattern Selection (15 Patterns)
*See APPENDIX 5 on page 42 to change V/f pattern
Notes
1 Take account of the following conditions and others when selecting V/f pattern
" Pattern matching the voltage-frequency characteristic of the motor
" According to the maximum motor speed
2 V/f pattern for high starting torque should be selected for
" Long wiring distance .
" Large voltage drop at start.
" AC reactor connected to input or output of the inverter .
" Use of motor of the rating below the max
For details . contact Yaskawa representative .
aplli-
Specification
Sn-02 V/f Pattern
capon
Specification Sn-02
V/f Pattern
400
(V)
Starting
4w!_________
Torque
Low
50Hz o0
m
50Hz 0
Starting
8g -
'
28
14
1
.2
Torque
~g
'
24
2
0 12525
50(Ht)
High
0125 ' 25 50(11,1
C
a,
60Hz
4oo(v)_
_
°
Starting
400
(v) .
_ . . . . . .
a
Satu- * ©
Torque
ration
v
-
) Low
a
= 60Hz
o~
50Hz Qq
m
50Hz
Starting
3
6
6 -
.-
C
Satu-
T
28
__
14
Torque ®
20
;
ration
0 15 3 50 BO (H:)
High
0 1 5 3 60 (H,)
400-v)-----------
40o
(v)
_ _ __
72Hz ®
90Hz
28 --
O
30
14
0 18 96 80 72 NO
F-
C_
14
0 22545
60 90111,1
Variable 4
0
(
v
!___ ..
L
400'0. - .
F-.
Torque ( ;
0
1 © o
120Hz -r-
50Hz loo
,
a
Variable
7
°
a
70 - ,
0
E
Torque
0 0
32
,
(1)
a
2
0 125 25 50 0111 =
0 3 6 fio '20 (11,1
Q c +'
o
m
Variable
(v)
400 - ----------- , N
(v) 4
~
,-
m Torque © o
wv U ,
`
180Hz '
60Hz
Variable
100
70 .___
'
60
Torque
0
18
504 ;
1
0 15 30 80 (Ht) 0 4 5 6 60 1880 (Ht)