Setting The Operation Characteristics - Mitsubishi Electric AE-SW Series Instruction Manual

Setting the operation characteristics

< Setting procedure >
Note: Press the screwdriver in the direction of the arrow to open the cover.
ETR cover
Operating hole for resetting
Fig. 27-1
RUN LED
(ETR)
ERR LED
TAL LED
Test terminal (a) Adjustable in step (b) Push button
Fig. 27-2
< Relay sealing >
Seal the ETR cover by using the sealing hole at the top of the ETR cover, if it is necessary.
CAUTION
1
Prepare a small flat tipped screwdriver.
6 mm or less
0.8 mm or less
2
Insert the flat tipped screwdriver into the opening of the
ETR (Electronic trip relay) cover. Then, lightly turn the
screwdriver to the upside as shown in Fig. 27-1, and the
ETR cover will open.
3
The following two types of switches are used. Operate
the switches in accordance with the following procedures.
(a) Adjustable in step
A rotary step switch. Do not stop turning the switch at
a point between steps. As for set in the between steps,
it is work at one of two adjacent. The setting is the
same in the zone between two continuous readings
on the heavy line. (Operating torque: 0.02 N·m or less)
Sealing hole
INST
10
12
(b) Pushbutton switch
A restorable pushbutton switch. Press the switch with
a force of 3N or less.
4
When any characteristic setting has been changed, check
the tripping characteristics using a field test device. A dedi-
cated field test device is available to check the character-
istics through the test terminal of ETR. As for the check-
ing procedures, see the instruction manual of the field test
device.
Specifications for field test device Y-2005
Test item
Testable range
Outside dimension (mm)
Counter
Control voltage
Weight
RESET
button
Before setting, turn off the breaker
and the ETR switch then make sure
of no current conducting.
When MCR (optional) is not provided, Ii
is set as shown below. Do not set the
2
6 4
Do not
switch in the "Do not set" range indicated
8
set
by the arrows. Set the switch on the INST
16
l i （xlr） side. As for the functions of MCR, see
page 20.
LTD, STD, INST, GFR, PAL
1% to 2500%
230(W) ✕ 120(H) ✕ 290(D)
0.000 to 999.999s
100 – 240V AC 50 / 60Hz
4.5kg
Sealing hole
Side view of the flat tip
Fig. 27-3
E − 27