Danfoss VT2800 Series User Manual

VLT
®
2800 Series
Programming
Pulse current 0 - I
INV.
.
An output signal is obtained, which is proportional
to the output current in the interval 0 - I
INV
.
Pulse power 0 - P
M,N
.
An output signal is obtained, which is proportional to
the present output power. Par. 342 corresponds to
the value set in parameter 102 Motor power, P
M,N
.
Pulse temperature 0 - Temp.
MAX
.
An output signal is obtained, which is proportional to
the present heatsink temperature. 0 H z corresponds
to a heatsink temperature of less tha n 20° C , and
parameter 342 corresponds to 100° C.
NB!:
Output terminal 46 is not available on
DeviceNet. Minimum output frequency at
frequency output = 16 Hz
342 Terminal 46, max. pulse scaling
(DO 46 MAX. PULS)
Value:
150 - 10000 Hz
✭ 5000 Hz
Function:
This parameter is used for setting the pulse
output signal’s maximum frequency.
Description of choice:
Set the required frequency.
343 Precise stop function
(PRECISE STOP)
Value:
✭Precise ramp stop (NORMAL)
[0]
Counter stop with reset
(COUNT STOP RESET)
[1]
Counter stop w ithout reset
(COUNT STOP N O RESET)
[2]
Speed-compensated stop (SPD CMP STOP)
[3]
Speed-compensated counter stop with reset
(SP D CMP CSTOP W. RES)
[4]
Speed-compensated co unter stop without reset
(SPD CMP CSTOP NO RES)
[5]
Function:
In this parameter you select which stop function is
performed in response to a stop command. All six
data selections contain a precise stop routine, thus
ensuring a high level of repeat accuracy.
The selections are a combination of the
functions described below.
NB!:
Pulse start [8] may n
ot be used together
with the p rec ise stop funct ion.
Description of choice:
Precise ramp stop [0] is selected to achieve high
repetitive precision at the stopping point.
Counter stop. Once it has received a pulse start
signal the frequency converter runs unt il the number of
pulses programmed by the user have been received at
input terminal 33. In this way an internal stop signal will
activate the normal ramp down time (parameter 208).
The counter funct ion is activated (starts t iming) at
the flank of the start signal (when it changes
from stop to start).
Speed compensated stop. To stop at precisely
the same point, regardless of the present speed,
a stop signal received is delayed internally when
the present speed is lower than the maximum
speed (set in parame ter 202).
Reset. Counter stop and Speed-compensated stop
can be combined with or without reset.
Counter stop with reset [1]. After each precise
stop the number of pulses counted during
ramp down 0 Hz is reset.
Counter stop without reset [2]. The number of pulses
counted during ramp down to 0 Hz is deducted
from the counter value in parameter 344.
344 Counter value
(PULSE COUNT PRE.)
Value:
0 - 999999
✭ 100000 pulses
Function:
In this parameter you can select the counter
value to be used in the integrated precise stop
function (parameter 343).
Description of choice:
The factory setting is 100000 pulses. The highest
frequency (max. resolution) that c an be registered
at terminal 33 is 67.6 kHz.
✭ = factory setting. () = di splay text [] = value for use in communication via serial communicat ion port
MG.28.E9.02 - VLT is a registered Danfoss trademark
95

Danfoss VT2800 Series Specifications

General

Brand	Danfoss
Model	VT2800 Series
Category	Controller
Language	English