Hitachi SJ Series, User Manual

Page: 428 / 786

Chapter 12
•
•
•
Chapter 12
Window comparator operation
• In the window comparator function, the signal will
be output when the input level is within the
specified range.
• In the break detection function, the signal will be
output when the input level is out of the specified
range.
• The logical values of
modified through [CC
Output operation in abnormal conditions
Example when [oE
02
Ａ
[WCAi1]/[WCAi2]/[WCAi3]
Max(100%)
Min(Ai4/Ai5:0%)
(Ai6 :
Ai4/Ai5/Ai6 inputs
Hysteresis width
[oE-37]/[oE-40]/
[oE-43]
[Ai4Dc]/[Ai5Dc]/[Ai6Dc]
[oE-45]
[oE-47]
[oE-49]
Max(100%)
Min(Ai4/Ai5:0%)
(Ai6 :-
Ai4/Ai5/Ai6 inputs
Hysteresis width
[oE-37]/[oE-40]/
[oE-43]
[Ai4Dc]/[Ai5Dc]/
[Ai6Dc]
[WCAi4]/[WCAi5]/
[WCAi6]
Chapter 12
Window comparator operation
In the window comparator function, the signal will
be output when the input level is within the
specified range.
In the break detection function, the signal will be
output when the input level is out of the specified
The logical values of the output signals can be
modified through [CC-11] to [CC
Output operation in abnormal conditions
Example when [oE
02
WCAi1]/[WCAi2]/[WCAi3]
Max(100%)
Min(Ai4/Ai5:0%)
(Ai6 :-100%)
Ai4/Ai5/Ai6 inputs
Hysteresis width
40]/
/[Ai5Dc]/[Ai6Dc]
00
01
02
Max(100%)
Min(Ai4/Ai5:0%)
-100%)
Ai4/Ai5/Ai6 inputs
Hysteresis width
40]/
[Ai4Dc]/[Ai5Dc]/
WCAi4]/[WCAi5]/
Window comparator operation
In the window comparator function, the signal will
be output when the input level is within the
In the break detection function, the signal will be
output when the input level is out of the specified
the output signals can be
11] to [CC-17].
Output operation in abnormal conditions
Example when [oE-45]/[oE
Analog input value
Analog input value
In the window comparator function, the signal will
be output when the input level is within the
In the break detection function, the signal will be
output when the input level is out of the specified
the output signals can be
17].
Output operation in abnormal conditions
45]/[oE-47]/[oE-49] =
Analog input value
Analog input value
12-22-5
In the window comparator function, the signal will
In the break detection function, the signal will be
output when the input level is out of the specified
the output signals can be
49] =
• Specify the analog operation level to maintain the
output level when the analog input becomes the
maximum value because of a short
the analog input becomes 0 V because of a break.
• To prevent the signal from being output at
power
[CC
[CC
5
Specify the analog operation level to maintain the
output level when the analog input becomes the
maximum value because of a short
the analog input becomes 0 V because of a break.
To prevent the signal from being output at
power-on, specify the on delay times [CC
[CC-22], [CC-
[CC-32] of the output terminals.
A short circuit occurred
Specify the analog operation level to maintain the
output level when the analog input becomes the
maximum value because of a short
the analog input becomes 0 V because of a break.
To prevent the signal from being output at
on, specify the on delay times [CC
-24], [CC-26], [CC
32] of the output terminals.
Analog adopted
A short circuit occurred
Inverter Function
Specify the analog operation level to maintain the
output level when the analog input becomes the
maximum value because of a short circuit or when
the analog input becomes 0 V because of a break.
To prevent the signal from being output at
on, specify the on delay times [CC
26], [CC-28], [CC
32] of the output terminals.
Window comparator
level
[oE-35]/[oE-38]/[oE
Window comparator
level
[oE-36]/[oE-39]/[oE
Analog adopted
Analog operation level in
abnormal conditions
[oE-44]/[oE-46]/[oE
Window comparator
level
[oE-35]/[oE-38]/[oE
Window comparator
level
[oE-36]/[oE-39]/[oE
Inverter Function
Specify the analog operation level to maintain the
output level when the analog input becomes the
circuit or when
the analog input becomes 0 V because of a break.
To prevent the signal from being output at
on, specify the on delay times [CC-20],
28], [CC-30], and
Window comparator upper limit
38]/[oE-41]
Window comparator lower limit
39]/[oE-42]
Analog operation level in
abnormal conditions
46]/[oE-48]
Window comparator upper limit
38]/[oE-41]
Window comparator lower limit
39]/[oE-42]
Inverter Function
Specify the analog operation level to maintain the
circuit or when
the analog input becomes 0 V because of a break.
30], and
upper limit
lower limit
upper limit
lower limit