Group 3.4: Ramp & Brakes Setup - Siemens BT300 Applications Manual

Siemens Application
3.5.6 Group 3.4: Ramp & Brakes Setup
Two ramps are available (two sets of acceleration time, deceleration time and ramp shape). The second
ramp can be activated by a digital input.
NOTE:
Ramp 2 always has higher priority and is used if a digital input for ramp selection is activated or
the Ramp 2 threshold is smaller than RampFreqOut.
Code Parameter
P3.4.1 Ramp 1 shape
P3.4.2 Acceleration time 1
P3.4.3 Deceleration time 1
P3.4.4 Ramp 2 shape
P3.4.5 Acceleration time 2
P3.4.6 Deceleration time 2
P3.4.7 Start magnetizing time
Start magnetizing cur-
P3.4.8
rent
DC braking time at
P3.4.9
stop
P3.4.10 DC brake current
Frequency to start DC
P3.4.11
braking at ramp stop
P3.4.12 Flux braking
P3.4.13 Flux braking current
24-hour support +1-800-877-7545 (Dial 2)
Table 28: Ramp and brakes setup.
Min Max Unit
0.0 10.0 s
0.1 3000.0 s
0.1 3000.0 s
0.0 10.0 s
0.1 3000.0 s
0.1 3000.0 s
0,00 600,00 s
Varies Varies A
0,00 600,00 s
Varies Varies A
0,10 10,00 Hz
0 1
0 Varies A
Siemens Industry, Inc. • 39
Default ID
0.0 500 S-curve time ramp 1
Defines the time required for
the output frequency to
20.0 103
increase from zero frequency
to maximum frequency.
Defines the time required for
the output frequency to
20.0 104
decrease from maximum fre-
quency to zero frequency.
S-curve time ramp 2. See
0.0 501
P3.4.1.
10.0 502 See P3.4.2.
10.0 503 See P3.4.3.
This parameter defines the
time for how long DC current
0,00 516
is fed to motor before accel-
eration starts.
Varies 517
Determines if braking is ON
or OFF and the braking time
0,00 508
of the DC-brake when the
motor is stopping.
Defines the current injected
into the motor during DC-
Varies 507
braking.
0 = Disabled
The output frequency at
1,50 515 which the DC-braking is
applied.
0 = Disabled
0 520
1 = Enabled
Defines the current level for
Varies 519
flux braking.
Description
3