Description of choice:
The lower signal limit of the output frequency f
LOW
must
be programmed within the normal operating range of the
frequency converter. See
for more details.
226
Warning: High frequency f
HIGH
Value:
Par.
200 Frequency range
= 0-132 Hz [0]/
[1].par. 225 f
LOW
- 132 Hz
132.0 Hz
Par.
200 Frequency range
= 0-590 Hz
[2]/[3].par. 225 f
LOW
- 590 Hz
132.0 Hz
Function:
If the output frequency exceeds the preset limit f
HIGH
, a
warning is given.
Parameters 223-228 Warning functions
do not work during
ramp-up after a start command and after 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.
Description of choice:
Programme the output frequency's upper signal limit f
HIGH
within the frequency converter's normal operating range.
See
for more details.
227
Warning: Low feedback, FB
LOW
Value:
-100,000.000 - par.
228 Warn.:FB
HIGH
-4000.000
Function:
If the feedback signal drops below the preset limit FB
LOW
, a
warning is given.
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
(
parameters 414 Minimum feedback, FB
MIN
and
415
Maximum feedback, FB
MAX
).
228
Warning: High feedback, FB
HIGH
Value:
Parameter 227 Warn.: FB
LOW
- 100,000.000
4000.000
Function:
If the feedback signal gets above the preset limit FB
HIGH
, a
warning is given.
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
MIN
and
415 Maximum
feedback, FB
MAX
).
229
Frequence bypass, bandwidth
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 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 is 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 problems in the
system.
Description of choice:
Enter the frequencies to be avoided. See also
Frequency bypass, bandwidth parameter229
for more details.
Programming
Design Guide
MG27E402
Danfoss A/S © Rev. May/2014 All rights reserved.
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