Allen-Bradley PowerFlex 70 - Page 43

Analog Inputs 2-15
Configuration #5:
• [Anlg In Config], bit 0 = “0” (Voltage)
• [Speed Ref A Sel] = “Analog In 1”
• [Speed Ref A Hi] = 60 Hz
• [Speed Ref A Lo] = 0 Hz
• [Analog In 1 Hi] = 5V
• [Analog In 1 Lo] = 0V
This configuration is used when the input signal is 0-5 volts. Here,
minimum input (0 Volts) represents 0 Hz and maximum input (5 Volts)
represents 60 Hz. This allows full scale operation from a 0-5 volt source.
Analog Scaling
[Speed Reference A Sel] = “Analog In 1”
[Analog In 1 Hi]
10V
[Speed Ref A Hi]
0 Hz
[Analog In 1 Lo]
0V
[Speed Ref A Lo]
60 Hz
Analog Scaling
[Speed Reference A Sel] = “Analog In 1”
[Analog In 1 Hi]
5V
[Speed Ref A Hi]
60 Hz
[Analog In 1 Lo]
0V
[Speed Ref A Lo]
0Hz
2
4
6
8
10
601218
Output Hertz
Input Volts
24 30 36 42 48 54 60
1
2
3
4
5
6
601218
Output Hertz
Input Volts
24 30 36 42 48 54 60