Double speed fan control system
The utility model discloses a double speed fan control system, include closely control system and long -range control system, closely control system includes hand automatic change -over SA1, and fan low -speed control branch road and fan high speed control branch road are connected respectively to h...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses a double speed fan control system, include closely control system and long -range control system, closely control system includes hand automatic change -over SA1, and fan low -speed control branch road and fan high speed control branch road are connected respectively to hand automatic change -over SA1's manual end, hand automatic change -over SA1's automatic end is connected to fan low -speed control branch road through auxiliary relay KA1's normally open contact, and hand automatic change -over SA1's automatic end is connected to fan high speed control branch roadthrough auxiliary relay KA2's normally open contact, and the action through auxiliary relay KA1 and auxiliary relay KA2 realizes that fan low -speed / high speed opens the stoppage in transit commentaries on classics, PLC's input is connected with starting switch and height / the low -speed change over switch among the remote control system, and starting switch is used for to the total enabling signal of PLC's input, and |
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