(ii) When an analog speed command (Not reversible) is enabled (F01 = 1)
As soon as run command is ON DC braking operation starts. After the DC braking operation, the
inverter activates a soft start to the starting speed. After H64 timer is elapsed, inverter accelerates the
motor up to starting speed (F23) by means of soft start acceleration ramp (H65). When the reference
speed (pre-ramp) exceeds the starting speed, the inverter immediately accelerates from the current
speed up to the reference speed (pre-ramp).
Speed
0
Starting Speed
FWD
ON
SW52-2
ON
Output Gate
ON
L85 H64 H65
Analog speed
command
Reference
Speed
DC
(iii) When an analog speed command (Reversible) is enabled (F01 = 2)
During this operation, no DC braking neither soft start operations are available. When the reference
speed (pre-ramp) exceeds the starting speed, the inverter starts acceleration from starting speed to the
reference speed (pre-ramp).
Speed
0
Starting Speed
FWD
ON
SW52-2
ON
Output Gate
ON
L85
Analog speed
command
Reference
Speed
2-44
Содержание Frenic lift
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