Hitachi SJ Series, User Manual

Page: 150 / 786

11-5
Chapter 11
Adjustment of I/O terminals - Example 1
11.2.7 Adjusting analog inputs (Ai1/Ai2)
(Example) Adjusting the operation (example for Ai1)
• You can limit the operation range of command
frequency by setting the ratio to the input.
(where a frequency is given via terminal input)
Parameter
Parameter
Setting function
Ai1 Ai2
[Cb-03] [Cb-13]
Sets a frequency command ratio to a start ratio
for analog input.
[Cb-04] [Cb-14]
Sets a frequency command ratio to an end ratio
for analog input.
[Cb-05] [Cb-15]
Sets a start ratio for analog input for 0 to 10 V/0
to 20 mA.
[Cb-06] [Cb-16]
Sets the end ratio for analog input for 0 to 10 V/0
to 20 mA.
• Ai2 can be adjusted by substituting Ai1 parameter
of the example with Ai2 parameter.
(Example) Making fine adjustment (example for Ai1)
Parameter
Parameter
Setting function
Ai1 Ai2
[Cb-30] [Cb-32]
Adjusts the zero point of reference line to voltage
input 10 V / current input 20 mA and the
maximum frequency.
[Cb-31] [Cb-33]
Adjusts the inclination of reference line of
voltage input 10 V / current input 20 mA.
*) Voltage and current inputs can be switched using
the switch on the board.
Adjustment of I/O terminals - Example 2
11.2.8 Adjusting analog outputs
(Ao1/Ao2/FM)
(Example) Adjusting the operation (example for Ao1)
• Firstly, set a value equivalent to 0% output.
• Secondly, adjust a value equivalent to 100%
output.
Parameter
Parameter
Setting function
Ao1 Ao2 FM
[Cd-23] [Cd-33] -
Adjusts the zero point of reference
line to voltage output 10 V / current
output 20 mA and data at 100%.
[Cd-24] [Cd-34] -
Adjusts the inclination of voltage
output 10 V / current output 20 mA
and data at 100%.
- - [Cd-13]
Adjusts the zero point of reference
line to output 100% duty ratio and
data at 100%.
- - [Cd-14]
Adjusts the inclination of output
100% duty ratio and data at 100%.
Maximum
frequency
100%
[Cb-04]
[Cb-03]
0
[Cb-05] [Cb-06] 100
(0V/0mA) (10V/20mA)
Analog input
(V/mA)
Where [Cb-07]=00,
the command
frequency from 0% to
[Cb-05] is [Cb-03].
100(%)
0
Parallel movement
[Cb-30]=-50.0 (%)
[Cb-30]=0.0 (%)
Maximum
0
50
-50
Change in
[Cb-30]=50.0 (%)
[Cb-31]=200.0 (%)
[Cb-31]=50.0 (%)
[Cb-31]=100.0 (%)
Output scale
t/T (%)
100
0
Parallel movement
Outputting
will be made
in this range.
[Cd-23]=50.0(%)
[Cd-23]=-50.0 (%)
[Cd-23]=0.0 (%)
Maximum
0
50
-50
Full scale (FS)
t/T (%)
100
0
Outputting will
be made in this
range.
[Cd-24]=200.0 (%)
[Cd-24]=50.0 (%)
[Cd-24]=100.0 (%)
Maximum
0
50
-50
[Cd-24]=-50.0 (%)
Change in
inclination