VSD-1C
Page 7
Figure 3: Logic Diagrams
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
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
