REXROTH Fv Series, Instruction Manual

Page: 97 / 222

b1.15
Time of S-curve falling section 6 Factory default 20.0 %
Setting range
0.0 % − 40.0 % (of ‘Decelera‐
tion time 1’ [b1.10])
Minimum unit 0.1 %
b1.16
Start mode Factory default 0
Setting range
0: Start mode 1
1: Start mode 2
2: Rotation speed capture
mode
Minimum unit 1
b1.17
Start frequency Factory default 0.5 Hz
Setting range 0.00 − 15.00 Hz Minimum unit 0.01 Hz
b1.18
Start frequency hold time Factory default 0.0s
Setting range 0.0 − 10.0 s Minimum unit 0.1s
● 0: Start mode 1
–
The converter runs at ‘Start frequency’ [b1.17], for ‘Start frequency
hold time’ [b1.18], accelerates for ‘Acceleration time 1’ [b109] to set
frequency.
– This mode is suitable for circumstances with high static friction tor‐
que and low load inertia.
● 1: Start mode 2
–
If ‘Startup DC brake time’ [b1.20] ≠0, DC brake is executed before
accelerating to ‘Start frequency’[b1.17]. If ‘Startup DC brake time’
[b1.20] = 0, the converter accelerates without braking to ‘Start fre‐
quency’[b1.17].
– This mode is suitable for circumstances where the load may en‐
counter forward/reverse rotation when the converter is in stop
mode.
● 2: Rotation speed capture mode
–
The converter detects the rotation speed and direction of the motor
and then starts with the current frequency of the motor.
– This mode is suitable for restarting after instantaneous power fault
in the case of a large inertia or freewheeling load.
● At startup, if the ‘Start frequency’ [b1.17] is lower than the
set frequency, the converter first accelerates to ‘Start fre‐
quency’ [b1.17], after ‘Start frequency hold time’ [b1.18], the
converter decelerates to the set frequency.
● For rotation speed capture mode, a pulse encoder is neces‐
sary.
b1.19
Stop mode Factory default 0
Setting range
0: Decelerate to stop
1: Freewheel to stop
Minimum unit 1
● 0: Decelerate to stop
–
The converter decelerates to stop according the deceleration time.
DOK-RCON02-FV*********IB01-EN-P
Rexroth Frequency Converter Fv Bosch Rexroth AG 95/219
Parameter Settings