E-38
18. Procedures for operating Display (LCD)
18.1 List of display items
18.2 LCD display
A protective sheet has been affixed on the Display (LCD) to prevent scratches. Remove the sheet before
starting the operation.
When removing the protective sheet, static electricity may be generated to light the LCD. However, it will go
off in a short time by self-discharge. Also, the display may flicker due to internal processing for refreshing the
display. This is not a malfunction.
List of measurement items
Liquid crystal display (LCD) screen
▼
(Down), and
▶
(Right) keys
Used to select and determine the display menu on the LCD screen.
(Press the key with a force of 3 N or less.)
Displays the measured value of load current,
harmonic current, trip information, and LCD setting.
The back light changes from white to red in the following cases:
• Trip operation
• Pre-alarm output
18.3 Basic operation
Press the “
▼
” and “ ” keys under the liquid crystal display (LCD) screen to operate the screen.
▼
(Down) key: Selects the item in the screen in descending order. The selected item is displayed with blinking.
(Right) key: Fixes the selected item and opens the display screen for the item.
The screen for the high-order item is displayed by selecting the “RETURN” item and pressing the key.
Option
Measuring items
Measuring
Display indication
Remark
Load
current (A)
Current of each phase
0 to 200% In
***** A (In = 630 A to 1600 A)
Indication of 1 to N-phase concurrently
(Bar graph display is also available)
Maximum value
ー
Harmonics
current (HI)
Fundamental harmonics of
each phase
0 to 100% In
***** A (In = 630 A to 1600 A)
Indication of 1 to N-phase
Harmonics of each phase
(3rd, 5th, 7th, 9th)
Each phase total value
Each phase total distortion
rate
***.* %
Content rate of each phase
Fault
memory
Trip cause/Fault current
0 to 2000% In
LTD
STD
INST
***** A (0-19999 A)
ー
***.* kA (20000 A and more)
0 to 200% In
GF
***** A
GF is an option
Elapsed time since tripping
0 to 24: 00
h: m
Time is recorded up to 24 hours
