Setting Procedure For The Electronic Trip Characteristics - Mitsubishi Electric AE-SW Series Instruction Manual

Setting procedure for the electronic trip characteristics

< Setting procedure >
Note) Move the screwdriver in the direction of the arrow.
ETR cover
Operating hole for RESET button
Fig. 30-1
Test terminal
Fig. 30-2
E-30
① Prepare a small flat tipped screwdriver.
② Insert a flat tipped screwdriver into the upper opening of
③ There are 2 types of switches. Operate them accordingly.
Sealing hole
(a) Stepping type
④ After changing a characteristic setting, check the tripping
RESET
button
(b) Push button type
Before changing the setting, turn off the breaker's
CAUTION
main power supply and, the ETR's control power
supply, and confirm that no current is flowing.
0.8 mm or less
6 mm or less
the ETR cover. Then, lightly push the handle as shown in
Fig. 28-1 to open the ETR cover.
(a) Stepping type
• This is a rotary stepping switch. Do not stop in be-
tween steps.
• If the dial is in the middle, the settings on either side
are enabled.
• Operate in the range of 0.02N.m torque or less.
• When MCR (option) is not attached, Ii is set as
shown in Fig. 30-3.
Do not set to the "Do not set" area. Always set to
the INST side.
(For the function descriptions of MCR, refer to P.21.)
• In the bold line area, where there is a range, the set-
ting is the same for the entire area. (Fig. 30-4)
INST 2
6 4
Do not
8
10
set
12
16
l i （xlr）
Fig. 30-3
(b) Push button type
This is a self-recovering push button switch. Push
with 3N force or less.
characteristic with a field testing device.
Characteristics can be checked through the ETR test ter-
minal by using a dedicated field testing device. For the
check procedure, refer to the instruction manual of the
testing device.
Speci cations of the eld testing device Y-2005
Test item LTD, STD, INST, GFR, PAL
Testable range 1% to 2500% × In
External dimensions mm 220 (width) × 150 (height) × 340 (depth)
Counter 0.000 to 999.999 s
Control voltage 100-240 V AC (50/60 Hz)
Mass 4.8 kg
Side view of the tip
(With T )
L
Fig. 30-4