Ramp - Danfoss VLT HVAC Basic Drive FC 100 Series Programming Manual

Parameters
3-16 Reference 2 Source
Option: Function:
Select the input to be used for the
second reference signal. 3-15 Reference
1 Source, 3-16 Reference 2 Source and
3-17 Reference 3 Source define up to
three different reference signals. The
sum of these reference signals defines
the actual reference. See also
1-93 Thermistor Source.
[0] No function
[1] Analog in 53
[2] Analog in 54
[7] Pulse input 29
[11] Local bus
reference
3-17 Reference 3 Source
Option: Function:
Select the reference input to be used for
the third reference signal. 3-15 Reference 1
Source, 3-16 Reference 2 Source and
3-17 Reference 3 Source define up to three
different reference signals. The sum of
these reference signals defines the actual
reference.
This parameter cannot be adjusted while
the motor is running. The option [1] PM is
not accessible, if 3-17 Reference 3 Source =
[1] PM.
[0] No function
[1] Analog in 53
[2] Analog in 54
[7] Pulse input 29
[11] Local bus
reference

3.4.3 3-4* Ramp 1

Configure the ramp parameter, ramping times, for each of
the two ramps (parameter group 3-4* and parameter
group 3-5*).
®
VLT HVAC Basic Drive Programming Guide
Figure 3.6
3-41 Ramp 1 Ramp Up Time
Range:
Size
related
3-42 Ramp 1 Ramp Down Time
Range:
Size
related
3.4.4 3-5* Ramp 2
Choosing ramp parameters, see parameter group 3-4*.
3-51 Ramp 2 Ramp Up Time
Range:
Size
related
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MG18B222 - VLT is a registered Danfoss trademark
RPM
P 4-14
High-limit
Reference
P 1-23
Motor
frequency
P 4-12
Low limit
P 3-*1
Ramp (X)Up
Time (Acc)
t
acc
Function:
[0.05 - Enter acceleration time from 0 Hz to
3600 s] 1-23 Motor Frequency if Asynchronous
*
motor is selected. Enter acceleration time
from 0 RPM to 1-25 Motor Nominal
Speed if PM motor is selected. Choose a
ramp-up time such that the output
current does not exceed the current limit
in 4-18 Current Limit during ramping. See
ramp-down time in 3-42 Ramp 1 Ramp-
down Time.
Function:
[0.05 - Enter deceleration time from 1-23 Motor
3600 s] Frequency to 0 Hz if Asynchronous motor
*
is selected. Enter deceleration time from
1-25 Motor Nominal Speed to 0 RPM if
PM motor is selected. Choose a ramp-up
time such that the output current does
not exceed the current limit in
4-18 Current Limit Current Limit during
ramping. See ramp-up time in 3-41 Ramp
1 Ramp-up Time.
Function:
[0.05 - Enter acceleration time from 0 Hz to
3600 s] 1-23 Motor Frequency if Asynchronous
*
motor is selected. Enter acceleration time
from 0 RPM to 1-25 Motor Nominal
Speed if PM motor is selected. Choose a
ramp-down time such that the output
3 3
Time
P 3-*2
Ramp (X)
Down
Time (Dec)
t
dec
3-15