151
Inputs a 0 to 10 V signal. A negative signal by the gain and voltage bias is limited to 0%.
1 : -10 to 10 V
Inputs a -10V to 10 V signal. A forward Run command can be compensated by the gain and
voltage bias to become a negative signal and run the motor in the reverse direction.
E3- 01 Terminal A1 Function Selection
Select the function to terminal A1. Refer to Table 6.21 on page 166.
Terminal A1 Function Selection
E3-02/ E3-03 Terminal A1 Input Gain/ Voltage Bias
E3-02 sets the terminal A1 input gain as a percentage when inputting 10V. E3-03 sets the
terminal A1 input voltage bias as a percentage when inputting 0V. Terminal A1 input
characteristics are determined by E3-02 and E3-03.
Examples
Gain =200%, voltage bias = 0%, terminal A1 is used as frequency command input (E3-01
=0)
When inputting a 10 V signal, the frequency command will be 200%. When inputting a 5V
signal, the frequency command is 100%.
As the drive output is limited by d1-02 (Maximum Output Frequency), the frequency command
will be 100% when the signal is 5 V and above.
100%
d1-02
Gain = 200%
Frequency
command
0 V 5 V 10 V
Bias = 0%
0 V 5 V 10 V
-5 V-10 V
Gain = -200%
Gain = 200%
100%
d1-02
100%
d1-02
E3-00 = 0 E3-00 = 1
Figure 6.62 Frequency Command Adjusted by Input Gain and Bias