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

Characteristics setting for the WF type

12
G 7
4
8
5
9
6
10
2
1 11
3
13
16 15
14
①
Trip indicator LED
②
Pre-alarm LED
③
Temperature alarm LED
④
Load current LED
⑤
RUN LED
⑥
ERR. LED
⑦
Current setting dial
⑧
LTD time setting dial
⑨
LTD curve setting dial
⑩
STD pick-up setting dial
⑪
STD time setting dial
⑫
INST/MCR pick-up current setting dial
⑬
Optional setting module
⑭
Pre-alarm current setting dial
⑮
RESET button (TEST L/S LOCK button)
⑯
TEST terminal
Note) The figure shows WF1 type with G1 module, Display (DP1) and MCR switch.
G1, DP1 and MCR are optional equipments.
Table 26
No. Setting item Symbol
⑦
Current setting Ir
⑧
LTD time T
L
⑨
a
LTD curve setting
STD pick-up
⑩
Isd
current
⑪
STD time Tsd
INST/MCR
⑫
Ii
pick-up current
⑭
Pre-alarm current Ip
—
Pre-alarm time Tp
Remark (1) The table and the figure include both optional display and MCR.
Remark (2) For WF relay, when Pre-alarm current Ip is set at "OVER", the Ip value is "Ir x 1.15".
Relation of setting dial
In (CT rating) Ir
Ig (P.28) Isd
Ii
E-26
The selectable
characteristics are the
following five curves.
(I 4 -1)t = const.
(I 3 -1)t = const.
(I 2 -1)t = const.
(I -1)t = const.
( I 0.02 -1)t = const.
I (current)
LTD characteristics curves
LTD curve can be selected
by the LTD curve setting dial.
Characteristic setting range
0.5 ~ 1.0 (0.05step) x In (CT rating)
LTD pick-up current : 1.15 x Ir
1–2–3–4–5–6–8–10–12–15–18s
0.02–1–2–3–4
1.5–2–2.5–3–4–5–6–7–8–9–10 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 t ON)
2
AE630-SW~AE1600-SW
16-12-10-8-6-4-2-2-4-6-8-10-12-16
AE2000-SW~AE3200-SW
AE4000-SW
AE2000-SWA, AE4000-SWA
AE5000-SW
AE6300-SW
Ir x 0.68 ~ 1.0 (0.04step) –OVER
1/2 T at Ir x 4 (after 1/2 T
L
Ip
Ip2 (P.29)
Load current LED (60, 80, 100%, OVER)
[LTD curve setting "a=2"]
a=2
10000
5000
4000
Pre-alarm current : Ip
3000 Ir x 0.68~1.0(0.04step)-OVER 5%
2000
Current setting : Ir
0.5~1.0(0.05step) x In(CT rating)
1.10 x Ir ... Non pick-up
LTD pick-up
1.20 x Ir ... Pick-up
1000
500
400
300
200
100
LTD operating time t Note1
LTD
a
(4/1.1155) -1
60
t = x T
LTD L
a
50 (I/1.1155Ir) -1
Accuracy :
40
a = 2
30%(1.5Ir load current<4Ir)
I = load current (A)
30
20%(4Ir load current)
Ir= 0.5~1.0 x In (A)
T = 1~18 (s)
L
20
PAL operating time t Note2
PAL
a
(4Ir/0.97lp) -1
t = x T
PAL L
a
10 (I/0.97lp) -1
Accuracy :
a = 2
30%(1.5Ir load current<4Ir)
I = load current (A)
20%(4Ir load current)
Ip= 0.68~1.15 x Ir (A)
5
T = 1~18 (s)
L
4
3
2
1
STD time : Tsd
0.06-0.1-0.2-0.3-0.4-0.5(s) 20%
.5
.4
.3
STD pick-up current : Isd
Ir x 1.5-2-2.5-3-4-5-6-7-8-9-10 15%
.2
.1
.05
.04
Note1 : LTD operating time is 0.8s(FLAT)when the operating
.03 time becomes 0.8s or less.
Note2 : PAL operating time is 0.5s(FLAT) when the operating
.02
time becomes 0.5s or less.
Note3 : When Tsd ="0.06" setting,operating time is 0.04~0.08s.
I 2 t is selectable ON or OFF.
.01
1 2 5 10 20
at Ir x 4
(I t OFF)
2
at Isd x 1.5
x Ir
(INST) (MCR)
12-10-8-6-4-2-2-4-6-8-10-12 x Ir
(INST) (MCR)
10-8-6-4-2-2-4-6-8-10 x Ir
(INST) (MCR)
, PAL contact output turns on.)
L
Pre-alarm time : Tp
T /2 20%
L
LTD time : T
L
1-2-3-4-5-6-8-10-12-15-18(s) 20%
Note3
(at Isd x 1.5)
I 2 t ON
(ramp)
I 2 t OFF
INST/MCR pick-up current : Ii
Max. breaking time
Ir x 2-4-6-8-10-12-16 15% : WF1
(In case of AE4000-SW~
Ir x 2-4-6-8-10-12 15% : WF2
6300-SW, it is 0.05s)
Ir x 2-4-6-8-10 15% : WF3
50 100 150 500 1000 2000
125 200 1600
Current (%)
Accuracy
1.10 x Ir ... Non Pick-up
1.20 x Ir ... Pick-up
±30% (1.5Ir≦load current<4Ir)
±20% (4Ir≦load current)
—
±15%
±20%
It operates in the range
between 0.04 and 0.08
when the time set at 0.06s.
WF1
±15%
WF2
WF3
±5%
±30% (1.5Ir≦load current<4Ir)
±20% (4Ir≦load current)
(at Ir x 4)
(at Ir x 4)
With MCR
5000 10000
Factory default
value
1.0
18
2
10
0.5 (I 2 t ON)
WF1 ... 16 (INST)
WF2 ... 12 (INST)
WF3 ... 10 (INST)
OVER
—