apfiff09 marine
VACON®
•
241
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7.12.6
Over Load Protection
With this function it is possible to select if Current, Torque or Power is used for overload protection.
Overload is based on internal counter that is increased when the input value is above 105% level
and decreased when below 105% level. The increase and decrease occurs every 100 ms.
Tripping occurs when overload counter value is over 10 000.
With parameters, you can be define the amount of increase (Overload maximum step) at maximum
defined input level (Overload Maximum Input). These points define the slope for the function. For
example, if the input value is in the middle of 105% and Overload Maximum Input values, the
counter is increased by half of the Over Load Maximum step.
2.12.5.7
Response to over load ID1838
“OverLoadResponse”
0
= No response
1
= Warning
2
= Fault
2.12.5.8
Over Load Signal
ID1837
“OverLoadSignal”
0
= Not Used
1
= Output Current (FW: MotorCurrentPU_100ms)
2
= Motor Torque
3
= Motor Power
2.12.5.9
Over Load Maximum Input
ID1839
“OverLoadMaxIN”
Input value level where overload counter is increased with maximum step defined by
P2.12.5.10
2.12.5.10 Over Load Maximum Step
ID1840
“OverLoadMaxStep”
Step in the overload counter when input value is at maximum input level defined by
P2.12.5.9.
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