74
|
SAMSUNG
DIAGRAM
7
7-3-2. Stepping Motor Control
■
As shown in the above figure, let the electric currents in sequence flow through the 4 windings to revolve the stepping motor. Of 3
methods of 4 couple stepping switch sequence, 1 Phase Exciter Method, 2 Phase Exciter Method, and 1-2 Phase Exciter Method,
the last method was adopted for this circuit. Based on this method, the signals come in the order of S1, S2, S3, and S4 to create
magnetic force and one frequency forms a cycle. When S1, S2, S3, and S4 receive the following signals respectively, the stepping
motor begins operation.
Power OFF
Power ON
S4
S2
S1
S3
M
1
1
0
0
0
2
1
1
0
0
3
0
1
0
0
4
0
1
1
0
5
0
0
1
0
6
0
0
1
1
7
0
0
0
1
8
0
0
0
1
S1
S2
S3
S4
1
0
0
0
1
2
0
0
1
1
3
0
0
1
0
4
0
1
1
0
5
0
1
0
0
6
1
1
0
0
7
1
0
0
0
8
1
0
0
0
Power OFF (Closing) CCW ("1"=HIGH)
Switch
Power ON (Opening) CW ("0"=LOW)
S1
S2
S3
S4
S1
S2
S3
S4
Circuit Description
(cont.)
DB98_16444A(1)_2 2/9/04 10:05 AM Page 74
Summary of Contents for SH07APG
Page 2: ...Model Line Up 1 1 Model Identification 1 2 Model Line Up 1 ...
Page 3: ......
Page 8: ...Specifications 2 1 Table 2 ...
Page 9: ......
Page 12: ...Outline Dimension 3 1 Indoor Unit 3 2 Outdoor Unit 3 ...
Page 13: ......
Page 17: ...MEMO 16 SAMSUNG ...
Page 18: ...SAMSUNG 17 Performance Data 4 1 Performance Data 4 ...
Page 19: ...18 SAMSUNG ...
Page 27: ...MEMO 26 SAMSUNG ...
Page 29: ......
Page 47: ......
Page 64: ...Diagram 7 1 Refrigerating Cycle Block Diagram 7 2 Circuit Diagram 7 3 Circuit Description 7 ...
Page 65: ......
Page 76: ...Troubleshooting 8 1 Troubleshooting for Non Inverter 8 2 Set up the Model Option 8 ...
Page 77: ......
Page 92: ...MEMO SAMSUNG 91 ...
Page 93: ...MEMO 92 SAMSUNG ...
Page 94: ...ELECTRONICS Samsung Electronics Co Ltd Feb 2004 Printed in Korea Code No DB98 16444A 1 ...