Hitachi SJ Series, User Manual

Page: 462 / 786

12-25-15
Chapter 12
About the inverter function
Bias adjustment of analog output
Terminal Current/voltage Bias parameter
Ao1
Common to
voltage/current [Cd-23]
Ao2 Common to
voltage/current [Cd-33]
• You can bias Point 0 as shown in the below figure.
(Example) Outputting information on the "[dA-01]
output frequency monitor" to [Ao1] in a voltage
range from 0 to 10 V
• I want to perform outputting in a range from 0 Hz
to the maximum frequency (60 Hz).
[Cd-23]=0.0%, [Cd-24]=100.0%
(Example) Outputting information on the output
frequency monitor to [Ao1] in a current range
from 4 to 20 mA
• I want to perform outputting in a range from 0 Hz
to the maximum frequency (50Hz).
[Cd-23]=20.0%, [Cd-24]=80.0%
Gain adjustment of analog output
Terminal Current/voltage Gain parameter
Ao1
Common to
voltage/current [Cd-24]
Ao2 Common to
voltage/current [Cd-34]
• You can change an inclination as shown in the
below figure.
(Example) Outputting information on the output
current monitor to [Ao2] in a current range from 4
to 20 mA
• I want to monitor the current in a range from 0 A to
the inverter rated current.
[Cd-33]=20.0%, [Cd-34]=160.0%
(Example) Outputting information on the output
torque monitor to [Ao2] in a voltage range from 0
to 10 V
• I want to apply a voltage output range from 0 to 10
V in a torque range from -200 to 200%.
[Cd-32]=01, [Cd-33]=50.0%, [Cd-34]=50.0%
*) When [Cd-32]=00 is set in the above described
example, corresponding values in a range from 5 to
10 V will be output for a range from 0 to -200% on
the "(-) rated torque" side.
Output frequency (Hz)
(mA)
20
0
Maximum frequency
50Hz
0Hz
10
25Hz
[Cd-23]=20.0(%)
4
[Cd-24]=80.0(%)
Output torque (Nm)
(V)
10
-10
(+) rated torque × 2
0
0
(-) rated torque × 2
(+) rated torque (-) rated torque
Outputting will
be made in
this range.
[Cd-33]=50.0%
[Cd-34]=50.0%
Output current (A)
(mA)
20
0
Rated current × 2
0A
10
Rated current
[Cd-33]=20.0(%)
4
[Cd-34]=160.0(%)
Output frequency (Hz)
(V)
10
0
Maximum frequency
60Hz
0Hz
5
30Hz
Output scale
(V):(mA)
10:20
0:0
Parallel
movement
Outputting will
be made in this
range.
[Bias]=50.0(%)
[Bias]=-50.0(%)
[Bias]=0.0(%)
Maxim
um
0
5:10
-5:-10
Full scale (FS)
(V):(mA)
10:20
0:0
Outputting will
be made in this
range.
[Gain]=200.0(%)
[Gain]=50.0(%)
[Gain]=100.0(%)
Maximum
0
5:10
-5:-10
[Gain]=-50.0(%)
Change in