Characteristics Setting For The Wm Type - Mitsubishi Electric AE-SW Series Instruction Manual

Characteristics setting for the WM type

1
2
Note) The figure shows a model with an optional G1
setting module, a display, and an MCR switch.
Table 24
Setting item Symbol
No.
①
Rated current
Ir
②
LTD pick-up current
I
L
③
LTD time T
L
④
STD pick-up current
Isd
⑤
STD time Tsd
AE630-SW ~ AE1600-SW
AE2000-SW ~ AE3200-SW
AE4000-SW
INST/MCR
⑥
Ii
pick-up current
AE6300-SW
⑦
Pre-alarm current Ip
⑧
Pre-alarm time Tp
Remark (1) For WM relay only, when Pre-alarm current Ip is set a "OVER" the Ip value
becomes equal to "I x 1.0".
L
Remark (2) The table shows data obtained on the breakers provided with MCR (optional).
Systematic diagram of setting dial coordination
In (CT rating) Ir (Fixed) I
L
Isd
E-24
Ig (P.28) Ii
6
3
5
4
7
Characteristic setting range
Set to the specified value at the factory
1.0-1.05-1.1-1.15-1.2 x Ir
15-20-25-30-40-60s
1.5-2-2.5-3-3.5-4-4.5-5 x Ir
0.5-0.4-0.3-0.2-0.1-0.06-0.06-0.1-0.2-0.3-0.4-0.5s
(I 2 t ON)
16-12-10-8-6-4-2-2-4-6-8-10-12-16
(INST)
10-8-6-4-2-2-4-6-8-10
(INST)
I × 0.68 to 1.0 (0.04 step) -OVER
L
1/2 T at IL × 1.2 (PAL contact output after passing 1/2 of T
L
Ip
Ip2 (P.29)
Load current LED (40, 60, 80, 100%)
⑦
Pre-alarm
current: Ip
②
LTD pick-up
current: I
L
④
STD pick-up
current: Isd
⑤
STD time: Tsd
I 2 t ON
(ramp)
2
I t OFF
⑥
Current (%)
Note 1)
at I x 1.2
L
It operates in the range
(I 2 t OFF)
and 0.08s when the time
at Isd x 1.5
x Ir
(MCR)
WM1
WM2
x Ir
(MCR)
WM3
)
L
Note 1) CT rating 250 A and 315 A can be set in 0.1 A steps, and
500 A or higher can be set in 1 A steps.
Note 2) When used without voltage applied to the control power
supply (ETR power supply module) Tsd, Ii operation time
may increase max. 20ms.
③
LTD time: T
L
⑧
Pre-alarm
time: Tp
With MCR
Max. breaking time
INST/MCR pick-up
(In case of AE4000-SW~
current: Ii
6300-SW, it is 0.05s)
Accuracy Factory default value
To be complied with ordering indication
—
±5% 1.15
±20% 20
±15% 5
±20% Note 2)
between 0.04 0.5 (I 2 t ON)
set at 0.06s.
WM1 ... 16 (INST)
WM2 ... 12 (INST)
±15% Note 2)
WM3 ... 10 (INST)
±5% OVER
±20%
—