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CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
b) Diagram of the Load Detection Logic
Figure 6.46 b)
- Details of the operation of digital functions
To = Time in N = 0 rpm
Is = Output Current (P003)
Th = Ramp Hold Time
Im = Average Current
N* = Speed Reference
Iq = Torque Current
N = Real Speed
Start
Repeat
Detection
End
Im < P366
P364 >0
N* = N* x P368
S
Calculate Im
Th = 0
Cable OK
Ramp Hold
N > P362
P361 = 1?
N = 0
To = 0
Repeat
Detection
Is > P365
Show
Overweight
Th = Th-1
Show Slack
Cable
Cable OK
Increase To
To > 1 s
Repeat
Detection
Slack Cable
Counter = 0
P364 > 0
Is > P365
1
Th > P363
1
Im > P367
S
S
S
S
S
S
S
S
S
S
S
S