Danfoss VLT FC 103 Programming Manual page 53

Parameter Description
3-17 Reference 3 Source
Option:
3 3
[0] No function
*
[1] Analog Input 53
[2] Analog Input 54
[7] Pulse input 29
[8] Pulse input 33
[20] Digital pot.meter
[21] Analog input X30/11
[22] Analog input X30/12
[23] Analog Input X42/1
[24] Analog Input X42/3
[25] Analog Input X42/5
[30] Ext. Closed Loop 1
[31] Ext. Closed Loop 2
[32] Ext. Closed Loop 3
NOTE
This parameter cannot be changed while the motor is
running.
3-19 Jog Speed [RPM]
Range:
Size
related 4-13 RPM]
*
52
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.
Function:
[ 0 - par. Enter a value for the jog speed n
which is a fixed output speed. The
frequency converter runs at this speed
when the jog function is activated. The
maximum limit is defined in 4-13 Motor
Speed High Limit [RPM].
See also 3-80 Jog Ramp Time.
MG16H102 - VLT
®
VLT Refrigeration Drive Programming Guide
3.5.3 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*).
P 4-13
High-limit
Reference
P 1-25
Motor
speed
P 4-11
Low limit
Illustration 3.15
3-41 Ramp 1 Ramp Up Time
Range:
Size
related
*
,
JOG
par .3 − 41 =
3-42 Ramp 1 Ramp Down Time
Range:
Size
related
*
par .3 − 42 =
®
is a registered Danfoss trademark
RPM
P 3-*1
Ramp (X)Up
Time (Acc)
t
acc
Function:
[ 1.00 - Enter the ramp-up time, i.e. the
3600 s] acceleration time from 0 RPM to
1-25 Motor Nominal Speed. 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.
tacc × nnom par .1 − 25
s
ref rpm
Function:
[ 1.00 - Enter the ramp-down time, i.e. the
3600 s] deceleration time from 1-25 Motor
Nominal Speed to 0 RPM. Choose a ramp-
down time such that no over-voltage
arises in the inverter due to regenerative
operation of the motor, and such that
the generated current does not exceed
the current limit set in 4-18 Current Limit.
See ramp-up time in 3-41 Ramp 1 Ramp
Up Time.
tdec × nnom par .1 − 25
s
ref rpm
Time
P 3-*2
Ramp (X)
Down
Time (Dec)
t
dec