Mitsubishi Electric AE-SW Series Instruction Manual page 26

Characteristic setting of optional setting module
< Characteristic setting of AP module >
By combining with the Pre-alarm function already installed in
standard ETR, the two step pre-alarm functions can be con-
structed.
In case of AE630-SW low rating type, the control supply is
necessary for this function.
For type WS relay
2 2nd Pre-alarm operating
time: Tp2 (✕T )
L
Current (% of Iu)
Table 26
No. Setting item Mark
2nd pre-alarm
1 Ip2
current
2nd pre-alarm
Tp2
2
time
< N5 module >
The LTD and pre-alarm characteristics of neutral pole be-
come 50% of other poles. The STD and INST characteris-
tics, however, are same as other poles (100% of other poles).
In case of AE630-SW low rating type, the control supply is
necessary for this function.
E − 26
1 2nd Pre-alarm
current: Ip2
LTD operating time: T
L
12-25-50-100-150s (at Iu✕2)
2 2nd Pre-alarm operating
time: Tp2 (FLAT)
Adjustable setting range
0.5-0.6-0.7-0.8-0.84-0.88-0.92-0.96-1.0✕Iu
0.5-0.6-0.7-0.8-0.84-0.88-0.92-0.96-1.0✕I
0.9-0.8-0.7-0.6-0.5-0.4-0.3✕T - 5-10-15-20-30-40-60s
L
(✕T )
L
1
For type WM relay
2 2nd Pre-alarm operating
time: Tp2 (✕T )
L
Current (% of I
WS
WM
L
(FLAT)
2
1 2nd Pre-alarm
current: Ip2
LTD operating time: T
L
✕1.2)
15-20-25-30-40-60s (at I
L
2 2nd Pre-alarm operating
time: Tp2 (FLAT)
)
L
Accuracy Setting for shipment
±10% WS
1.0
±5% WM
±20% 0.9 (✕T )
L