Hitachi SH1-900H

3-6
Chapter 3
Operation Setting and Examples of I/O Adjustment
■ Example for adjusting I/O terminals 3
3.11 Adjust the analog input (Ai3)
E.g.1) Adjust operation (The frequency reference is set by
[Ai3])
• The frequency reference range corresponding to the analog
input can be set arbitrarily.
◼ Parameter
Parameter
Details
Ai3
[Cb-23]
Set the start frequency when the analog input is
[Cb-25]. Set the ratio (%) with the maximum frequency
as 100%.
[Cb-24]
Set the end frequency when the analog input is [Cb-26].
Set the ratio (%) with the maximum frequency as 100%.
[Cb-25]
Set the start voltage between the analog input -10V and
10V in the ratio (%) corresponding to -100% to 100%.
[Cb-26]
Set the end voltage between the analog input -10V and
10V in the ratio (%) corresponding to -100% to 100%.
E.g.2) Fine setting (The frequency reference is set by [Ai3] )
• If there is a deviation between the analog input and the
frequency reference in the above [Cb-23] to [Cb-26]
adjustment, fine adjustment is possible as follows.
At this time, set [Cb-23] to [Cb-26] to the default values as
possible. Typically, the gain / bias is adjusted within a few
percent.
■Parameter
Parameter
Details
Ai3
[Cb-34]
Fine adjustment of the analog input 0 V point is
performed by adding the bias value to the frequency
reference. Set the ratio (%) with the Maximum
frequency as 100%. If the frequency reference is
negative, the rotation is reverse.
[Cb-35]
As shown above figure, fine adjustment is performed by
multiplying the slope of the reference line by the gain.
Set the ratio (%) based on the ( Maximum frequency /
analog input (10V) ) = 100%.
■ Example for adjusting I/O terminals 4
3.12 Input terminal chatter prevention
• Set a response time for input terminal to prevent from
a malfunction due to noise or/and chatter.
◼ Parameter
Input
terminal
Response
time
Input
terminal
Response
time
1
[CA-41]
7
[CA-47]
2
[CA-42]
8
[CA-48]
3
[CA-43]
9
[CA-49]
4
[CA-44]
A
[CA-50]
5
[CA-45]
B
[CA-51]
6
[CA-46]
■ Example of adjusted I/O terminals 5
3.13 Output terminals stabilization
• Set the delay time to stabilize an output terminal from
a sensitive reaction of internal functions.
■Parameter
Output
terminal
On-delay time
Off-delay time
11
[CC-20]
[CC-21]
12
[CC-22]
[CC-23]
13
[CC-24]
[CC-25]
14
[CC-26]
[CC-27]
15
[CC-28]
[CC-29]
16A-16C *1)
[CC-30]
[CC-31]
AL1-AL0/
AL2-AL0
[CC-32]
[CC-33]
*1) SH1 Series do not have this terminal.
Selected output
function
Operation of
the output
terminal 11
[CC-20]
[CC-21]
ON
OFF
OFF
ON
Operation of
the input
terminal 1
Operation of
the internal
functions
[CA-41]
[CA-41]
ON
OFF
OFF
ON
Forward rotation
Maximum frequency
100%
[Cb-34]=-50.0(%)
Analog input(%)
(10V=100%)
0%
0%
Change the Slope angle
[Cb-35]=200.0(%)
[Cb-35]=100.0(%)
[Cb-35]=50.0(%)
Parallel slide
-50%
-100%
[Cb-34]=50.0(%)
100%
10V
-10V
50%
Reference Line
This range is
reverse
rotation
[Cb-34]=0.0(%)
100%
-100%
Reverse rotation
Maximum frequency
Forward rotation
Maximum frequency
Reverse rotation
Maximum frequency
[Cb-23]
[Cb-26]
[Cb-25]
[Cb-24]
(-10V)
-100%
100%
(+10V)
Analog input
(Ai3)
100%
-100%