VSD-1MC-20(40)
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Figure 4: Logic Diagrams (Auto Mode)
AUTO MODE
Switch 1 = OFF (0-10 Volts or 0-20 mA)
Switch 2 = OFF (No shutoff at 5%)
Fan Speed
100%
Minimum
Speed
10 Volts
or 20 mA
Input
0
AUTO MODE
Switch 1 = ON (2-10 Volts or 4-20 mA)
Switch 2 = OFF (No shutoff at 5%)
Fan Speed
100%
Minimum
Speed
10 Volts
or 20 mA
Input
0
2 Volts
or 4 mA