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Chapter 5. Functions
CT operation type
Different operations can be set for CT inputs 1 and 2.
Item (bank) Display Description Initial value User level
CT1 operation type
(setup bank)
C 36
0: Heater burnout detection
1: Current measurement
0 Simple,
standard,
advanced
CT2 operation type
(setup bank)
C 39
0
• These items are displayed and the settings can be changed if a model with two CT
inputs is used.
• If current measurement is selected, the current when the output is ON is updated
regardless of the ON/OFF status of the output, and the current when the output is
OFF is always 0.0 A.
CT output
When the CT operation type is heater burnout detection, an output whose ON/OFF
is monitored can be specified.
Item (bank) Display Description Initial value User level
CT1 output
(setup bank)
C 37
0: Control output 1
1: Control output 2
2: Event output 1
3: Event output 2
4: Event output 3
0 Simple,
standard,
advanced
CT2 output
(setup bank)
C 40
0
• These items are displayed and the settings can be changed if a model with two CT
inputs is used and the CT operation type is set to heater burnout detection.
CT measurement wait time
When the CT operation type is heater burnout detection, the time from the change
in the output ON/OFF status to the start of the current measurement can be set.
Item (bank) Display Description Initial value User level
CT1 measurement wait time
(setup bank)
C 38
30 to 300 ms 30 ms Simple,
standard,
advanced
CT2 measurement wait time
(setup bank)
C 41
30 ms
• These items are displayed and the settings can be changed if a model with two CT
inputs is used and the CT operation type is set to heater burnout detection.
• Current measurement starts when the measurement waiting time elapses after the
change in the ON/OFF status of the monitored output, and it ends when 100 ms
elapses.