Allen-Bradley powerflex 700 - Chapter 2 Start Up; Prepare For Drive Start-Up

Analog Inputs 2-13
Configuration #2:
• [Anlg In Config], bit 0 = “0” (Voltage)
• [Speed Ref A Sel] = “Analog In 1”
• [Speed Ref A Hi] = 30 Hz
• [Speed Ref A Lo] = 0 Hz
• [Analog In 1 Hi] = 10V
• [Analog In 1 Lo] = 0V
This is an application that only requires 30 Hz as a maximum output
frequency, but is still configured for full 10 volt input. The result is that the
resolution of the input has been doubled, providing only 3 Hz change per
input volt (Configuration #1 is 6 Hz/Volt).
Analog Scaling
[Speed Reference A Sel] = “Analog In 1”
[Analog In 1 Hi]
10V
[Speed Ref A Hi]
60 Hz
[Analog In 1 Lo]
0V
[Speed Ref A Lo]
0 Hz
Analog Scaling
[Speed Reference A Sel] = “Analog In 1”
[Analog In 1 Hi]
10V
[Speed Ref A Hi]
30 Hz
[Analog In 1 Lo]
0V
[Speed Ref A Lo]
0 Hz
2
4
6
8
10
12
601218
Output Hertz
Input Volts
24 30 36 42 48 54 60
2
4
6
8
10
12
601218
Output Hertz
Input Volts
24 30 36 42 48 54 60