
2002 Microchip Technology Inc.
Preliminary
DS30485A-page 115
PIC18FXX39
TABLE 14-2:
ProMPT OUTPUT CHARACTERISTICS FOR VARIOUS V/F CURVES
Motor Type:
Rated Voltage:
Full Load Current:
Rated Frequency:
Rated Speed:
Rated Power:
Shaded Pole Blower
115V
3.5/3.25A
50/60 Hz
1570 RPM
1/10 HP
Input
Frequency (Hz)
Measured
Frequency (Hz)
Deviation (%)
Measured
Output
Voltage (RMS)
Measured
Output
Current (A)
Motor Speed
(RPM)
Linear V/F Curve (Pre-programmed)
15
14.8
1.3
22.8
1.59
348
18
17.8
1.1
28.2
1.75
445
20
19.8
1.0
33.5
1.92
505
25
24.7
1.2
42.0
2.08
651
30
29.7
1.0
52.6
2.26
794
35
34.6
1.1
62.0
2.40
926
40
39.6
1.0
72.3
2.57
1060
45
44.5
1.1
81.3
2.70
1185
50
49.5
1.0
90.7
2.79
1305
55
54.4
1.1
99.6
2.96
1421
60
59.4
1.0
107.8
3.10
1536
65
64.3
1.1
112.3
3.26
1565
70
69.3
1.0
111.5
3.53
1450
75
74.2
1.1
111.3
3.69
1070
Pump V/F Curve
15
14.8
1.3
15.0
1.00
3.5
18
17.8
1.1
18.4
1.10
396
20
19.8
1.0
21.4
1.23
456
25
24.7
1.2
29.5
1.44
602
30
29.7
1.0
36.6
1.60
722
35
34.6
1.1
44.7
1.79
852
40
39.6
1.0
53.9
2.01
979
45
44.5
1.1
62.9
2.21
1092
50
49.5
1.0
73.4
2.47
1221
55
54.4
1.1
88.2
2.79
1367
60
59.4
1.0
102.0
3.05
1488
65
64.3
1.1
108.8
3.25
1538
70
69.3
1.0
108.0
3.50
1385
75
74.3
0.9
109.1
3.58
994