Mitsubishi Electric NF250-HEV, Инструкция по эксплуатации, Страница: 41 / 64

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(3) Rated Sensitivity Current I Δ n, Maximum Operating Time Te Check
* No fuse breaker will be displayed as “-”.
PROTECT
SETTING
AL_RST
ERASE
INFO
MENU
SETTING MEASURE
ALARM
LCD
ITEM_S
DATE
EP/EQ
MENU
[Main menu screen]
[Setting item
selection screen]
MENU
SETTING MEASURE PHASE
DEMAND
PULSE
LINE_S
[Measurement setting
selection screen]
To [Measurement setting selection screen]
MENU
SETTING MEASURE PHASE
[Phase switching
display screen]
To [Phase switching display screen]
[Allow changes screen]
7.1.2 Method for various settings
7.1.2-1 Setting method for measurement-related items
• Select SETTING from the main menu screen and press ENTER to switch to the setting item selection screen.
• Switches through MEASURE
⇔ ALARM ⇔ LCD ⇔ DATE ⇔ EP/EQ ⇔ ITEM_S ⇔ FREE_S ⇔ MEASURE....
• Select MEASURE from the setting item selection screen and press ENTER to switch to the measurement setting selection screen.
Screen [1] Screen [2]
NORMAL
INVERS
Select NO ⇔ YES
with UP/DOWN
MENU
SETTING MEASURE PHASE
OK?
NO
YES
N
OW
S
ETTING....
To [Measurement setting selection screen]
ENTER
MENU
ENTER
MENU
ENTER
MENU
ENTER
MENU
Phase switching
setting value
Select with UP/DOWN
ENTER
Select with UP/DOWN
Select with UP/DOWN
[Earth leakage characteristics
ER setting value display screen]
● Ir
● Ii
● TL
● Is
● Ts
●
I
6
t
● I
2
t
● I ⊿ n
● Te
: Current setting
: Instantaneous tripping current
: Long time delay operating time (at 200%)
: Short time delay tripping current
: Short time delay operating time (at Is
× 1.5)
: Long time delay lamp characteristics (*)
: Short time delay lamp characteristics (*)
: Rated sensitivity current
: Maximum operating time
PROTECT
--- ---
ER
MENU
I ⊿ n and Te setting values
I 6 t ON
I
6
t OFF
Current
Operating
time
TL
T
Is
I
2
t ON
I
2
t OFF
Ts
Ii
I
* For 400/800 A frame,
ON is set always.
● PHASE : Phase switching ON/OFF setting
● LINE_S : Phase and wire setting
● DEMAND : Demand time limit setting
● PULSE : Pulse unit setting
(1) Phase switching setting
[Default value: NORMAL (no phase switching)]
• Select PHASE on the measurement setting selection screen and press ENTER to switch to
the phase switching display screen. (Screen [1])
This allows the phase switching setting value to be changed. Select INVERS
(phase switching) and press ENTER to decide.
• Select YES on the allow changes screen and press ENTER to change
the setting. (Screen [2])
* “NOW SETTING...” is displayed until the setting is completed.
• Once setting is complete, the screen will return to the measurement
setting selection screen.
• Select MEASURE from the setting item selection screen and press ENTER to switch to the measurement setting selection screen.
• Switches through PHASE
⇔ LINE_S ⇔ DEMAND ⇔ PULSE ⇔ PHASE.... (PULSE is only for models with electric energy pulse output.)