Danfoss VLT AutomationDrive FC 300 Programming Manual page 78

Parameter Descriptions
4-56 Warning Feedback Low
Range:
-999999.999
ReferenceFeed-
backUnit
*
3 3
4-57 Warning Feedback High
Range:
999999.999
ReferenceFeed-
backUnit
*
4-58 Missing Motor Phase Function
Option:
[0] Disabled
[1] Trip 100 ms
[2] Trip 1000 ms
[3] Trip 100ms
3ph detec.
[5] Motor Check
76
®
VLT
Function:
[ -999999.999 - Enter the lower feedback
par. 4-57 limit. When the feedback
ReferenceFeed- falls below this limit, the
backUnit] display reads Feedb Low.
The signal outputs can
be programmed to
produce a status signal
on terminal 27 or 29 (FC
302 only) and on relay
output 01 or 02 (FC 302
only).
Function:
[ par. 4-56 - Enter the upper
999999.999 feedback limit. When the
ReferenceFeed- feedback exceeds this
backUnit] limit, the display reads
Feedb High. The signal
outputs can be
programmed to produce
a status signal on
terminal 27 or 29 (FC
302 only) and on relay
output 01 or 02 (FC 302
only).
Function:
NOTE
This parameter cannot be adjusted while
the motor is running.
Displays alarm 30, 31 or 32 in the event of a
missing motor phase. It is strongly
recommended to enable to avoid motor
damage.
The frequency converter does not issue a
missing motor phase alarm. Not
recommended due to risk of motor damage.
For a quick detection time and alarm in the
event of a missing motor phase.
For a slow detection time and alarm in the
event of a missing motor phase.
The frequency converter detects automatically
when the motor is disconnected and resumes
operation once the motor is connected again.
MG33MG02 - VLT
AutomationDrive Programming Guide
3.6.4 4-6* Speed Bypass
Some systems call for avoiding certain output frequencies
or speeds, due to resonance problems in the system. A
maximum of four frequency or speed ranges can be
avoided.
4-60 Bypass Speed From [RPM]
Array [4]
Range:
Size related
*
4-61 Bypass Speed From [Hz]
Array [4]
Range:
Size related
*
4-62 Bypass Speed To [RPM]
Array [4]
Range:
Size related
*
4-63 Bypass Speed To [Hz]
Array [4]
Range:
Size related
*
®
is a registered Danfoss trademark
Function:
[ 0 - par. 4-13 Some systems call for avoiding
RPM] certain output speeds due to
resonance problems in the system.
Enter the lower limits of the
speeds to be avoided.
Function:
[ 0 - par. Some systems call for avoiding
4-14 Hz] certain output speeds due to
resonance problems in the system.
Enter the lower limits of the speeds
to be avoided.
Function:
[ 0 - par. 4-13 Some systems call for avoiding
RPM] certain output speeds due to
resonance problems in the system.
Enter the upper limits of the
speeds to be avoided.
Function:
[ 0 - par. Some systems call for avoiding
4-14 Hz] certain output speeds due to
resonance problems in the system.
Enter the upper limits of the
speeds to be avoided.