Functional Software description
74
DCS 500 Software Description
4
3
2
1
0.8
0.6
0.5
0.4
0.3
0.2
0.1
0.07
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
0.98
0.9
0.8
0.7
0.5
M
O
T
O
R’
S
SHO
R
T
T
IME OVERL
O
A
D
CURR
ENT
FA
CTOR
NORMALIZED TIME CONSTANT
PA
RA
M
E
T
E
R
VA
LU
E
O
F
M
O
D
E
Lx.
T
C (
xxxx)
Motor’s PRELOAD factor
MOTOR TRIPPING TIME SECONDS
30
50
100
150 200
300
500
1000
2000
1000
2000
2400
900
800
700
600
500
400
300
200
100
80
70
60
50
40
30
20
10
1500
25
15
150
30
50
10
0
15
0
20
0
30
0
500
10
00
0
1.06
0.95
60
60
125
250
Figure
51
MODELx.TC selection curves with tripping base level 106%.
Summary of Contents for DCS 500B
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