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Appendix A - ACS380 in crane applications 541
Timing diagrams
The diagram shows the operation of the
Speed match
fault.
The diagram shows the operation of the
Brake slip at standstill2
warning.
Speed (rpm)
76.32
(+30 rpm)
76.32
(+30 rpm)
76.33
(+50 rpm)
t (s)
t (s)
76.34
76.34
90.01
24.01
D105
Speed match
Speed (rpm)
t (s)
t (s)
t (s)
t (s)
Drive
stopped
Brake
control
active
D200
Brake slip at standstill2
76.32
(+30 rpm)
76.34
90.01
24.01
Because the drive is stopped, the
ramped and shaped speed
reference (
24.01
) is zero.
ACS380 FW.book Page 541 Friday, May 4, 2018 4:18 PM
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