VAMP 257 - Page 72

VAMP 257 Feeder and motor manager
Technical description
VAMP Ltd
30
VAMP 24h support phone : +358 (0)20 753 3264
VM257.EN002
Setting parameters of directional overcurrent stages:
I
dir
>, I
dir
>>, I
dir
>>> and I
dir
>>>> (67)
Pickup setting
Unit:
xI
mode
I
dir
>
I
dir
>>
0.10 ... 4.00
I
dir
>>>
Param.
I
dir
>>>>
Range
0.10 … 20.00
Default
1.20
Directional / Undirectional mode
Param.
Mode
Range
Dir / Undir
Default
Dir
Base angle offset Unit:
°
Param.
Offset
Range
-180 … +179
Default
0
Operation delay selection (only for I
dir
> and I
dir
>>)
Curve
Curve
Type
A…E
- curve family selection
- delay type selection
- formula parameters
DT
IEC
IEEE
IEEE2
RI
Prg1 Prg2 Prg3
DT
Definite time
X
NI
Normal inverse
X X
VI
Very inverse
X X X
EI
Extremely inverse
X X X
LTI
Long time inverse
X X
LTEI
Long time extremely inverse
X
LTVI
Long time very inverse
X
MI
Moderately inverse
X X
STI
Short time inverse
X
STEI
Short time extremely inverse
X
RI
X
RXIDG
X
Type
Parameters
Function parameters
X X X
Programmable curve 1
X
Programmable curve 2
X
Programmable curve 3
16 programmable
[current, time] points
for each curve
X
A
X X X
B
X X X
C
X X
D
X
Parameters
Active only, when
Type = Parameters
Usage of these parameters are defined by
the delay formulas
E
X