Hitachi WJ C1 Series

Chapter 9 Inverter Functions
9-16-8
[Ao1] terminal output gain/bias adjustment
 The gain/bias of the analog output can be adjusted to match the meter connected to the [Ao1]
terminal.
 When reset input is applied, the bias temporarily becomes 0%.
 After adjusting the bias with [C109], use [C106] to adjust the gain so that the meter is at the full
scale.
Code
Item
Description
Data
[C106]
[Ao1] gain adjustment
Sets the gain of the [Ao1] terminal output.
50 to 200 (%)
[C109]
[Ao1] bias adjustment
Sets the bias of the [Ao1] terminal output.
0 to 100 (%)
■ [Ao1] bias adjustment
■ [Ao1] gain adjustment
■ (Example 1) When the output
frequency from 0 to the maximum
frequency is the output of 0 to 5 VDC
■ (Example 2) When the output
current 0 to 100% is the output of
0 to 10 VDC
[Ao1] Output (VDC)
10
0
5
Full-scale
[C109]=50%
Parallel shift
[Ao1] Output (VDC)
10
0
5
Full-scale
[C106]=200%
[C106]=100%
[C106]=50%
Tilt
[Ao1] Output (VDC)
10
0
5
Maximum
frequency
of 60 Hz
Output
frequency
(Hz)
30
60
[Ao1] gain adjustment [C106] = 50%
[Ao1] Output (VDC)
10
0
5
Output
current
(%)
100%
200%
[Ao1] gain adjustment [C106] = 200%