Fantech VLT 2800 Series Instruction Manual page 54

211 Jog ramp time
(JOG RAMP TIME)
Value:
0.02 - 3600.00 sec.
Function:
The jog ramp time is the acceleration/deceleration
time from 0 Hz to the rated motor frequency f
(parameter 104 Motor frequency, f
that the output current will not reach the current limit
(set in parameter 221 Current limit I
The jog ramp time starts if a jog-signal is given
via the LCP control panel, one of the digital inputs
or the serial communication port.
Description of choice:
Set the required ramp time.
212 Quick stop ramp-down time
(Q STOP RAMP TIME)
Value:
0.02 - 3600.00 sec.
Function:
The quick-stop ramp-down time is the deceleration
time from the rated motor frequency to 0 Hz, provided
no overvoltage arises in the inverter because of
generating operation of the motor, or if the generated
current exceeds the current limit in parameter 221
Current limit I . Quick stop is activated via one of
LIM
the digital inputs or the serial communication.
Description of choice:
Set the required ramp-down time.
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A8.22 - VLT is a registered Danfoss trademark
3.00 sec (VLT 2803-2875)
10.00 sec (VLT 2880-2882)
M,N
). It is assumed
M,N
).
LIM
3.00 sec (VLT 2803-2875)
10.00 sec (VLT 2880-2882)
VLT® 2800 Series
213 Jog frequency
(JOG FREQUENCY)
Value:
0.0 - Par. 202 Output frequency high limit, f
Function:
Jog frequency f means a fixed output frequency
JOG
that the variable frequency drive supplies to the motor
when the Jog function is activated. Jog can be
activated via the digital inputs, serial communication
or via the LCP control panel, on the condition that
this is active in parameter 015 Local jog.
Description of choice:
Set the required frequency.
214 Reference function
(REF FUNCTION)
Value:
Sum (SUM)
Relative (RELATIVE)
External/preset (EXTERNAL/PRESET)
Function:
It is possible to define how preset references are to
be added to the other references; for this purpose,
use Sum or Relative. It is also possible by using the
External/preset to select whether a shift between
external references and preset references is required.
External reference is the sum of the analog
references, pulse references and any references
from serial communication.
Description of choice:
If Sum [0] is selected, one of the adjusted
preset references (parameters 215-218 Preset
reference) is summarized as a percentage of
the reference range (Ref
MIN
the other external references.
If Relative [1] is selected, one of the added preset
references (parameters 215-218 Preset reference)
is summarized as a percentage of the sum of
present external references.
If External/preset [2] is selected, it is possible via
a digital input to shift between external references
or preset references. Preset references will be a
percentage value of the reference range.
MAX
10.0 Hz
[0]
[1]
[2]
- Ref ), added to
MAX
53