User`s manual

apfiff09 marine vacon • 99
24-
6
7.3 Ramp control
SEL
G
IN 0
IN 1
R Final Ramp Time
P Ramp time 1
P Ramp time 2
DI Ramp time 1/2
SEL
G
IN 0
IN 1
DI Inching Active
P Inching Ramp
MULDIV
VALUE
MULTIP
DIVIS
F
Ramp Reduction
P 100 %
SEL
G
IN 0
IN 1
MULDIV
VALUE
MULTIP
DIVIS
F Prohibited area
P
1,0
P Prohibited Factor
SEL
G
IN 0
IN 1
F Ramp Follower
P
0,0 s
P2.3.1 Start function ID505
Ramp:
0 The frequency converter starts from 0 Hz and accelerates to the set reference
frequency within the set acceleration time.
Flying start:
1 The frequency converter is able to start with motor running by applying
current to motor and searching for the frequency corresponding to the speed
the motor is running at. Searching starts from the maximum frequency
towards the zero frequency until the correct value is detected.
Use this mode if the motor is coasting when the start command is given. With
the flying start it is possible to start motor form actual speed without forcing
the speed to zero before ramping to reference.
Closed loop control will always start like flying start because exact speed of the motor is
known from encoder feedback.
P2.3.2 Stop function ID506
Coasting:
0 Drive stops controlling the motor immediately and motor rotate freely.
Ramp:
1 After the Stop command, the speed of the motor is decelerated according to
the set deceleration parameters to zero speed.
coasting stop regardless of selected stop function.
P2.3.3 Acceleration time 1 ID103
This parameter defines the time required for the output frequency to increase from the
zero frequency to maximum frequency.
P2.3.4 Deceleration time 1 ID104
This parameter defines the time required for the output frequency to decrease from the
maximum frequency to zero frequency.