Hitachi SJ Series, User Manual

Page: 463 / 786

12-25-16
Chapter 12
About the inverter function
Analog monitor adjustment mode: [Ao1] and [Ao2]
output
• Setting the analog monitor adjustment mode
[Cd-10] to 01 fixes the outputs of the [Ao1] and
[Ao2] output terminals.
(Example) Outputting from [Ao1] information on the
output current monitor in a range from 4 to 20 mA
• I want to perform outputting in a range from 4 to 20
mA when a current ranging from 0 A to a current
value of Inverter rated current × 2 flows.
(The standard points are a current in a range from
0 A to a current value of Inverter rated current × 2)
Code Name
Output scale range
(Corresponding to 0 to 10 V
/ 0 to 20 mA)
dA-02
Output
current
monitor (0.00 to 2.00) × Inverter
rated current (A)
Check that [SW3] on the substrate is set to a
current of 20 mA, and then turn on the power
supply.
Set [Cd-04]=(dA-02). Setting [Cd-10] to 01 and
[Cd-25] to 0.0% sets the output from the [Ao1]
terminal to 0 mA.
When the standard point you want to output is 0
A, and when you want to output 4 mA from [Ao1],
adjust [Cd-23] to approximately 20.0%, and check
if 4 mA is output.
(For example, see and wait with a range from
15.0% to 25.0%.)
Setting [Cd-25] to 100.0% sets the output from
the [Ao2] terminal to approximately 20 mA.
• With the output fixed with [Ao1], an output set with
[Cd-25] is made for the full-scale value of the
monitor selected with [Cd-04].
• With the output fixed with [Ao2], an output set with
[Cd-35] is made for the full-scale value of the
monitor selected with [Cd-05].
Adjust the inclination with [Cd-24]. Change
[Cd-24] to make an adjustment immediately before
the point at which [Ao2] begins lowering from 20
mA.
(For example, see and wait with a range from
75.0 to 85.0%.)
[Cd-23]=20.0%, [Cd-24]=80.0%
Returning [Cd-10] to 00 starts current output of
[Ao1] that is adjusted.
1
2
3
4
4
Output current (A)
(mA)
20
0
Rated current
× 2 (A)
0A
10
Rated current
(A)
[Cd-23]=20.0%
4
Output current (A)
(mA)
20
0
Rated current
× 2 (A)
0A
10
Rated current
(A)
[Cd-24]=80.0%
4