Hitachi SJ Series User Manual page 428

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