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Chapter 4. Functions
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Current measurement and error detection
The V-P (voltage pulse) blocks each have two CT inputs, and can be used for
continuous current measurement or heater and actuator burnout detection,
overcurrent detection, and short circuit detection.
Settings for both CT1 input and CT2 input groups must be made for each block:
A2, B2, A1, and B1.
Item (bank)
Display
Description
Initial value
CT operation
(CT bank)
MENU > CT
CT operation
0: Continuous current measurement
1: Detection of heater burnout for
terminal OUT
0
CT measurement wait time
(CT bank)
MENU > CT
CT measurement wait time
30 to 300 ms
30
Heater burnout detection
current value
(CT bank)
MENU > CT
Burnout detection value
0.0000 to 350.00 A
0.0000
Overcurrent detection
current value
(CT bank)
MENU > CT
Over-current detection value
0.0000 to 350.00 A
0.0000
Short-circuit detection
current value
(CT bank)
MENU > CT
Short-circuit detection value
0.0000 to 350.00 A
0.0000
Hysteresis
(CT bank)
MENU > CT
Hysteresis
0.0000 to 350.00 A
0.5000
Delay time
(CT bank)
MENU > CT
Delay time
0.0000 to 3200.0 s
2.0000
Condition for restoring
status before measurement
(CT bank)
MENU > CT
Unmeasured value condition
1024 to 2047 (standard bit codes)
1024