Omron VARISPEED E7 User Manual page 161

Refer to
Frequency reference
Adjusting Frequency Bias Using an Analog Input
When parameter H3-09 is set to 0 (Frequency Bias), the frequency equivalent to the terminal A2 input voltage
is added to A1 as a bias.
For example, if H3-02 is 100%, H3-03 is 0%, and terminal A2 is set to 1 V, the frequency reference when 0 V
6
is input to A1 will be 10% of the maximum output frequency (E1-04).
22
6-
Fig 6.22 for adjusting the signal using the gain and bias functions.
Terminal
input voltage
Terminal A1 input
Fig 6.22 Terminals A1 and A2 Inputs
Frequency bias
0V (4 mA/0 mA)
Fig 6.23 Frequency Bias Adjustment (Terminal A2 Input)
Frequency reference
10 %
Bias
0 V
Frequency reference
A1
0V (4 mA/0 mA)
Terminal A2 input
Multi-function analog input
terminal A2 input level
H3-02
Terminal A1 input voltage
10 V
Terminal A2 input
voltage (current)