Danfoss VLT 2800 Series, Руководство по эксплуатации

Страница: 35 / 103

minal 46 and via the relay output. The unit for feedback
in Closed loop is programmed in parameter 416
Proc-
ess units .
Description of choice:
Set the required value within the feedback range (pa-
rameter 414
Minimum feedback, FB
MIN
and 415 Max-
imum feedback, FB
MAX
).
229 Frequence bypass, bandwidth
(FREQ BYPASS B.W.)
Value:
0 (OFF) - 100 Hz
0 Hz
Function:
Some systems call for some output frequencies to be
avoided because of mechanical resonance problems
in the system. In parameters 230-231
Frequency by-
pass these output frequencies can be programmed. In
this parameter a bandwidth can be defined on either
side of these frequencies.
Description of choice:
The frequency set in this parameter will be centered
around parameters 230 Frequency bypass 1 and 231
Frequency bypass 2 .
230 Frequency bypass 1 (FREQ. BYPASS 1)
231 Frequency bypass 2 (FREQ. BYPASS 2)
Value:
0 - 1000 Hz
0.0 Hz
Function:
Some SYSTEMs call for some output frequencies to
be avoided because of mechanical resonance prob-
lems in the SYSTEM.
Description of choice:
Enter the frequencies to be avoided. See also param-
eter 229
Frequency bypass, bandwidth .
VLT
®
2800 Series
= factory setting, () = display text, [] = value for use in communication via serial communication port
34 MG.27.A2.02 - VLT
®
is a registered Danfoss trademark