Danfoss VLT FCD 311 Design Manual page 72

puts can be programmed to give a warning signal
via terminal 46 and via the relay output.
Description of choice:
The lower signal limit of the output frequency f
must be programmed within the normal operating
range of the frequency converter. See drawing at
parameter 223 Warning: Low current, I
226 Warning: High frequency f
226
(WARN.FREQ.HIGH)
Value:
Par. 200 Frequency range = 0-132 Hz [0]/[1].
par. 225 f - 132 Hz
LOW
Par. 200 Frequency range = 0-1000 Hz [2]/[3].
par. 225 f - 1000 Hz
LOW
Function:
If the output frequency exceeds the preset limit f
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:
The output frequency's upper signal limit f
be programmed within the frequency converter's nor-
mal operating range. See drawing at parameter 223
Warning: Low current, I
LOW
227 Warning: Low feedback, FB
227
(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 out-
puts 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 parame-
ter 416 Process units.
= factory setting. () = display text [] = value for use in communication via serial communication port
72
LOW
.
LOW
HIGH
132.0 Hz
132.0 Hz
HIGH
must
HIGH
.
LOW
-4000.000
HIGH
®
VLT FCD Series
Description of choice:
Set the required value within the feedback range
(parameter 414 Minimum feedback, FB
Maximum feedback, FB
MAX
228 Warning: High feedback, FB
228
(WARN.FEEDB HIGH)
Value:
Par. 227 Warn.: FB - 100,000.000
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 out-
puts 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 parame-
ter 416 Process units.
Description of choice:
Set the required value within the feedback range
(parameter 414 Minimum feedback, FB
Maximum feedback, FB
MAX
229 Frequence bypass, bandwidth
229
(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 Fre-
quency bypass these output frequencies can be
programmed. In this parameter a bandwidth can be
defined on either side of these frequencies.
MG.04.A1.02 - VLT is a registered Danfoss trade mark
and 415
MIN
).
HIGH
4000.000
and 415
MIN
).
0 Hz