Analog Input Settings - Hitachi WJ200 Series Instruction Manual
Wj200 series single-phase input 200v class three-phase input 200v class three-phase input 400v class
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Also See for WJ200 Series:
- Quick reference manual (131 pages) ,
- Instruction manual (30 pages) ,
- Installation manual (20 pages)
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3−16
Analog Input Settings
The inverter has the capability to accept an external analog input that can command
the output frequency to the motor. Voltage input (0-10 V) and current input (4-20mA)
are available on separate terminals ([O] and [OI] respectively). Terminal [L] serves as
signal ground for the two analog inputs. The analog input settings adjust the curve
characteristics between the analog input and the frequency output.
Adjusting [O-L] characteristics – In the
graph to the right, A013 and A014 select the
active portion of the input voltage range.
Parameters A011 and A012 select the start
and end frequency of the converted output
frequency range, respectively. Together,
these four parameters define the major line
segment as shown. When the line does not
begin at the origin (A011 and A013 > 0), then
A015 defines whether the inverter outputs
0Hz or the A011-specified frequency when
the analog input value is less than the A013
setting. When the input voltage is greater
than the A014 ending value, the inverter
outputs the ending frequency specified by
A012.
Adjusting [OI-L] characteristics – In the
graph to the right, A103 and A104 select the
active portion of the input current range.
Parameters A101 and A102 select the start
and end frequency of the converted output
frequency range, respectively. Together,
these four parameters define the major line
segment as shown. When the line does not
begin at the origin (A101 and A103 > 0), then
A105 defines whether the inverter outputs
0Hz or the A101-specified frequency when
the analog input value is less than the A103
setting. When the input voltage is greater
than the A104 ending value, the inverter
outputs the ending frequency specified by
A102.
If [AT] is not assigned to any of the intelligent input terminal, inverter recognizes the
input [O]+[OI].
Adjusting [VR-L] characteristics – This is used when an optional operator is used.
Refer to parameters A161 ~ A165 for the details.
Max frequency
A012
A015=00
A015=01
A011
0
0%
A013
A014
0V
Input scale
Max frequency
A102
A105=00
A105=01
A101
0
0%
A103
A104
0
Input scale
%
100%
10V
%
100%
20mA
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Troubleshooting
