MA7200 PLUS Operating Manual
TECO – Westinghouse Motor Company Sn-02 Parameter Details
Sn-02
V/F curve selection (0 – 15)
First set the inverter input voltage (Cn-01) to match the power supply voltage. Then using parameter Sn-02 the V / f curve
can be set to any of the pre-set patterns 00 – 14 or can be customized by setting Sn-02 to 15.
The following tables show the various Sn-02 patterns 0 -14
Table 9.2.3.2a V/F curve of 1 - 2 HP, 230V Class Inverter *
Specifications
Sn-
02
V/F Pattern
†
Specifications
Sn-
02
V/F Pattern
†
Gene
ral Purp
ose
50Hz
00
High S
ta
ring
To
rque
‡
50Hz
Low
Starting
Torque
08
(09)
1.3 2.5
230
8.5
16.7
0
(Hz)
(V)
50
16.1
8.3
(08)
High
Starting
Torque
09
60Hz
60Hz
Satu-
ration
01
15
60Hz
Low
Starting
Torque
10
(11)
1.5 3.0
230
8.5
16.7
0
(Hz)
(V)
60
16.1
8.3
(10)
50Hz
Satu-
ration
02
High
Starting
Torque
11
72Hz
03
Rated O
utput
Operatio
n (M
achi
ne
Tool)
90Hz
12
V
aria
ble T
orq
ue
Ch
ara
cte
ristic
50Hz
Variable
Torque
1
04
(05)
1.3
25
230
8.2
57.5
0
(Hz)
(V)
50
40.2
7.4
(04)
120Hz
13
Variable
Torque
2
05
60Hz
Variable
Torque
3
06
(07)
1.5
30
230
8.2
57.5
0
(Hz)
(V)
60
40.2
7.4
(06)
180Hz
14
Variable
Torque
4
07
*
These values are for the 230V class; double the values for 460V class inverters.
†
Consider the following items as the conditions for selecting a V/f pattern.
(1) The voltage and frequency characteristic of motor.
(2) The maximum speed of motor.
‡
Select high starting torque only for the following conditions.
(1) The power cable length is > 492ft (150m).
(2) Voltage drop at startup is high.
(3) An AC reactor is inserted at the input side or output side of the inverter.
(4)
A motor with a capacity smaller than the maximum applicable inverter capacity is used.
Cont.