VAMP Ltd
Feeder and motor manager
Technical description
VAMP 257
VM257.EN002
VAMP 24h support phone : +358 (0)20 753 3264
15
Operation delay selection (only for I>)
Curve
Curve
Type
A…E
- curve family selection
- delay type selection
- formula parameters
DT
IE
C
IEEE
IEEE
2
RI
Prg1
Prg2
Prg3
RXIDG
X
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
P
ar
ame
ter
s
Active only, when
Type = Parameters
Usage of these parameters are defined by
the delay formulas
E
X
Definite operating time
Unit:
Seconds
t>
0.08 ... 300.00
0.3
t>>
0.04 … 300.00
0.6
Pa
ra
m
.
t>>>
Ra
nge
0.04 … 300.00
Default
0.1
Inverse time multiplier (only for I>)
0.05 ... 20.00
(IEC)
(IEEE)
(IEEE2)
Pa
ra
m
.
k
Ra
nge
0.5 … 20.00
(RI)
Default
1.0
Event enabling
Range:
Enabled/disabled
S_On
Start on event
Enabled
S_Off
Start off event
Enabled
T_On
Trip on event
Enabled
Pa
ra
m
.
T_Off
Trip off event
Default
Enabled
Inverse operation time formulas (only for I>)
Curve family:
IEC
Parameters:
A, B
1
−
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
=
B
pickup
I
I
A
k
t
Standard delays
A
B
NI Normal
inverse
0.14
0.02
EI Extremely
inverse
80
2
VI Very
inverse
13.5
1
LTI
Long time inverse
120
1
