5
DETAILED PARAMETER DESCRIPTION
Motor current (P0003)
Overload current
I(A)
Time (s)
4
3
2.5
2
1.5
1.1
1.3
0.5
0
0 15 30 60 75 100 150 300
t =
30
I-1
Figure 5.18: Function I x t - overload detection
Curve for motor with independent ventilation
Curve for self-ventilated motor
P0156
0
10
20
30
40
50
60
70
80
90
100
110
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140
Rated speed (%)
P0401 (Motor rated current) (%)
P0157
P0158
P0158
P0156
P0157
Figure 5.19: Overload protection levels
✓
NOTE!
When P0295 or P0401 are changed, the values of P0156 to P0158 are changed according to the
new current:
P0156 = 1.10 × (P0295 or P0401)
P0157 = 0.90 × (P0295 or P0401)
P0158 = 0.50 × (P0295 or P0401)
P0159 - Temperature alarm I x t
Adjustable range: 0 to 100 % Factory setting: 80 %
Acesso: Menu → Configurations → Protections
Description:
When the value of P0076 reaches the value given in this parameter, alarm A0046 (Motor Ixt function overload)
is indicated on the HMI.
MVW3000 | 5-25
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