Omron KE1 User Manual page 14

Chapter 3 Functions .........................................................................3-1
3.1 List of functions......................................................................................... 3-2
3.2 Basic functions ......................................................................................... 3-3
■ Applicable phase wire ...................................................................................... 3-3
■ Synchronization selection for measuring block ................................................ 3-3
■ Dedicated CT type............................................................................................ 3-3
■ VT ratio ............................................................................................................. 3-4
■ CT ratio............................................................................................................. 3-4
■ Low-cut function ............................................................................................... 3-5
■ Leakage Low-cut current value ........................................................................ 3-5
■ Average count .................................................................................................. 3-5
■ Logging function ............................................................................................... 3-6
■ CT signal detection........................................................................................... 3-6
■ Measurement function...................................................................................... 3-7
3-3 Voltage sag (instantaneous voltage drop) detection function................. 3-10
■ Object subject to monitoring of voltage sag ................................................... 3-10
■ Setting of conditions for voltage sag detection............................................... 3-11
■ Voltage sag history .............................................................................................11
■ Operation at the time of power supply voltage sag (power failure)................ 3-12
■ Examples of operations for voltage sag detection ......................................... 3-13
3.4 Leakage detection function .................................................................... 3-14
■ Ouptut terminal 1/output terminal 2/output terminal 3 function setting .......... 3-14
■ Detection function........................................................................................... 3-14
■ Logging of measured value ............................................................................ 3-14
■ Available CT ................................................................................................... 3-14
■ Notes .............................................................................................................. 3-14
■ Installation examples...................................................................................... 3-15
3.5 Voltage/current monitoring function........................................................ 3-16
■ Overvoltage/undervoltage .............................................................................. 3-16
■ Overcurrent/undercurrent ............................................................................... 3-16
■ Open phase (Fixed unbalance factor)............................................................ 3-17
■ Opposite phase .............................................................................................. 3-17
3.6 Output function ....................................................................................... 3-18
■ Ouptut terminal 1/output terminal 2/output terminal 3 function setting .......... 3-18
■ Integrated power amount pulse output........................................................... 3-18
■ Voltage sag alarm output................................................................................ 3-19
■ Leakage alarm output..................................................................................... 3-20
■ Open phase (fixed unbalance factor) alarm output........................................ 3-20
■ Opposite phase alarm output ......................................................................... 3-20
■ Alarm output ................................................................................................... 3-21
3.7 Other functions ....................................................................................... 3-25
■ Simple measurement ..................................................................................... 3-25
■ Electric energy conversion coefficient ............................................................ 3-25
■ Time................................................................................................................ 3-25
■ Initialization..................................................................................................... 3-26
XII