Fantech VLT 2800 Series Instruction Manual page 57

normal operating range. See drawing at parameter
223 Warning: Low current, I
227 Warning: Low feedback, FB
(WARN.FEEDB. LOW)
Value:
-100,000.000 - par. 228 Warn.: FB
Function:
If the feedback signal falls below the preset limit
FB , a warning is given.
LOW
Parameters 223-228 Warning functions are out of
function during ramp-up after a start command and
after a stop command or during stop. The warning
functions are activated when the output frequency has
reached the resulting reference.The signal outputs can
be programmed to give a warning signal via terminal 46
and via the relay output.The unit for feedback in Closed
loop is programmed in parameter 416 Process units.
Description of choice:
Set the required value within the feedback range
(parameter 414 Minimum feedback, FB
415 Maximum feedback, FB
228 Warning: High feedback, FB
(WARN.FEEDB HIGH)
Value:
Par. 227 Warn.: FB
LOW
Function:
If the feedback signal gets above the preset
limit FB , a warning is given.
HIGH
Parameters 223-228 Warning functions are out of
function during ramp-up after a start command and
after a stop command or during stop. The warning
functions are activated when the output frequency has
reached the resulting reference. The signal outputs can
be programmed to give a warning signal via terminal 46
and via the relay output. The unit for feedback in Closed
loop is programmed in parameter 416 Process units.
Description of choice:
Set the required value within the feedback range
(parameter 414 Minimum feedback, FB
415 Maximum feedback, FB
= factory setting. () = display text [] = value for use in communication via serial communication port
56
.
LOW
LOW
-4000.000
HIGH
and
MIN
).
MAX
HIGH
- 100,000.000
4000.000
and
MIN
).
MAX
VLT® 2800 Series
229 Frequence bypass, bandwidth
(FREQ BYPASS B.W.)
Value:
0 (OFF) - 100 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 bypass 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
Function:
Some systems call for some output frequencies
to be avoided because of mechanical resonance
problems in the system.
Description of choice:
Enter the frequencies to be avoided. See also
parameter 229 Frequency bypass, bandwidth.
MG.28.A8.22 - VLT is a registered Danfoss trademark
0 Hz
0.0 Hz