Yaskawa VCD 723 - Manual (Page 89)

Appendices
83 Motor Parameters
9/15/93
Motor Output: HP = 15
Motor Voltage: V
M =
230V
Motor Rated Speed: N
R =
1763 RPM
Motor Base Speed: N
S =
1800 RPM
No. of Poles: pp = 4
Full Load Amps: I
FLA
= 39.4 A
No-Load Amps: I
NLA
= 12.0 A
dn-01 (N
R
) = 1750
dn-02 (N
S
) = 1750
dn-03 (pp) = 4
dn-04 (V
NL
) = 210
dn-05 = 38 dn-05 =
√
( I
FLA
)
2
– ( I
NLA
)
2
dn-05 =
√
(39.4) 2 – (12) 2
dn-05 = 37.5
≈
38
dn-06 = 1.5 V
M
2 N
S
– N
R
dn-06 =
V
NL
N
S
x 60
230 2 1800 – 1763
dn-06 =
210 1800
x 60
dn-06 = 1.48
≈
1.5
dn-07 = 31.6 I
NLA
dn-07 =
dn-05
x 100%
12
dn-07 =
38
x 100%
dn-07 = 31.6%
Sample
Calculation
Motor Data
Calculate dn-XX’s
( )
] [
( )
] [