Fuji Electric Frenic lift, Справочное руководство

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2.3 Overview of Function Code
C
hap.
2
FUN
CT
IO
N
C
O
D
E
S
F20 DC Braking(Starting Speed)
F21 DC Braking(Operation Level)
F22 DC Braking(Operation Time)
H64
(
Zero speed holding time)
The starting speed, the operation level, and the operation time of the DC braking are set. The DC
braking doesn't operate when using it by the vector control with PG.
■
DC Braking (Starting Speed)(F20)
The starting speed of the DC braking when decelerating to stop is set.
 Data setting range changes depending on the number of poles of motor etc. For details, refer to
section 2.2.
■
DC Braking (Operation Level)(F21)
Sets the output current of the DC braking. This level is used at start (during H64) and at stop (during
F22).
- Data setting range: 0 to 100 (%)
■
DC Braking (Operation Time)(F22)
The operation time of the DC braking is set. This timer will start to count only when decelerating to
stop, in other words, when decelerating F20 speed level is reached. The stop speed operation is
carried out when set to 0.00 s.
- Data setting range: 0.00 to 30.00 (s)
Timing diagram at stop Timing diagram at start
DC braking operates at the stop speed when the stop speed (F25) is bigger than DCB
starting speed (F20).
Reference speed
DC Brake
Output voltage
Motor speed
ON OFF OFF
0 Hz
0 V
0 rpm
F22
F21
F20
ON OFF OFF
0 Hz
0 V
0 rpm
H64
F21
F23
F24 H65
Reference speed
DC Brake
Output voltage
Motor speed
2-39