VAMP Ltd
Feeder and motor manager
Technical description
VAMP 257
VM257.EN002
VAMP 24h support phone : +358 (0)20 753 3264
31
Definite operating time
Unit:
Seconds
t>
t>>
t>>>
Pa
ra
m
.
t>>>>
Ra
nge
0.06 ... 300.00
Default
0.3
Inverse time multiplier (only for I
dir
> and I
dir
>>)
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
dir
> and I
dir
>>)
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