3-19 Jog Speed [RPM]
Range:
Function:
Size
related
*
[ 0 -
par. 4-13
RPM]
Enter a value for the jog speed n
JOG
, 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
parameter 4-13 Motor Speed High
.
See also
and
.
3.5.3 3-4* Ramp 1
Configure the ramp times for each of the 2 ramps
(
parameter group 3-4* Ramp 1
and
parameter group 3-5*
Ramp 2
).
t
acc
t
dec
130BA169.11
P 3-*2
Ramp (X)
Down
Time (Dec)
P 4-13
High-limit
RPM
Reference
P 1-25
Motor
speed
P 4-11
Low limit
Time
P 3-*1
Ramp (X)Up
Time (Acc)
Illustration 3.21 Ramp 1
3-41 Ramp 1 Ramp Up Time
Range:
Function:
Size
related
*
[ 0.10
- 3600
s]
Enter the ramp-up time, that is the
acceleration time from 0 RPM–
parameter 1-25 Motor Nominal Speed
. Select a
ramp-up time such that the output current
does not exceed the current limit in
parameter 4-18 Current Limit
during ramping.
See ramp-down time in
.
par . 3 − 41 = tacc × nnom par . 1 − 25
ref RPM
s
3-42 Ramp 1 Ramp Down Time
Range:
Function:
Size
related
*
[ 0.10 -
3600 s]
Enter the ramp-down time, that is the
deceleration time from
parameter 1-25 Motor Nominal Speed
–0 RPM.
Select a ramp-down time preventing
overvoltage from arising in the inverter due
to regenerative operation of the motor. The
ramp-down time should also be long
enough to prevent that the generated
current exceeds the current limit set in
3-42 Ramp 1 Ramp Down Time
Range:
Function:
parameter 4-18 Current Limit
. See ramp-up
time in
.
par . 3 − 42 =
tdec × nnom
par . 1 − 25
ref RPM
s
3.5.4 3-5* Ramp 2
To select ramp parameters, see
parameter group 3-4* Ramp
1
.
3-51 Ramp 2 Ramp Up Time
Range:
Function:
Size
related
*
[ 0.10 -
3600 s]
Enter the ramp-up time, that is the
acceleration time from 0 RPM–
parameter 1-25 Motor Nominal Speed
. Select
a ramp-up time such that the output
current does not exceed the current limit in
parameter 4-18 Current Limit
during
ramping. See ramp-down time in
parameter 3-52 Ramp 2 Ramp Down Time
.
par . 3 − 51 =
tacc × nnom par . 1 − 25
ref rpm
s
3-52 Ramp 2 Ramp Down Time
Range:
Function:
Size
related
*
[ 0.10 -
3600 s]
Enter the ramp-down time, that is the
deceleration time from
parameter 1-25 Motor Nominal Speed
–0 RPM.
Select a ramp-down time such that no
overvoltage occurs in the inverter due to
regenerative operation of the motor, and
such that the generated current does not
exceed the current limit set in
parameter 4-18 Current Limit
. See ramp-up
time in
par . 3 − 52 =
tdec × nnom par . 1 − 25
ref rpm
s
Parameter Description
Programming Guide
MG20OB02
Danfoss A/S © 05/2018 All rights reserved.
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