4-56 Warning Feedback Low
Range:
Function:
Size
related
*
[ -999999.999
- par. 4-57
Reference-
FeedbackUnit]
Enter the lower feedback limit.
When the feedback drops below
this limit, the display reads
Feedb
Low
. The signal outputs can be
programmed to produce a status
signal on terminal 27 or 29 and on
relay output 01 or 02.
4-57 Warning Feedback High
Range:
Function:
Size
related
*
[ par. 4-56 -
999999.999
Reference-
FeedbackUnit]
Enter the upper feedback limit.
When the feedback exceeds this
limit, the display reads Feedb
High
.
The signal outputs can be
programmed to produce a status
signal on terminal 27 or 29 and on
relay output 01 or 02.
4-58 Missing Motor Phase Function
Option:
Function:
NOTICE
This parameter cannot be
adjusted while the motor is
running.
The missing motor phase function
detects whether the motor phase is
missing during motor rotation.
Shows alarm 30, 31, or 32 in the
event of a missing motor phase.
Enable this function to avoid motor
damage.
[0]
Disabled
The frequency converter does not
issue a missing motor phase alarm.
Not recommended due to risk of
motor damage.
[1]
Trip 100 ms
For a quick detection time and
alarm in the event of a missing
motor phase.
[2]
*
Trip 1000 ms
[3]
Trip 100ms
3ph detec.
Special option relevant for crane
applications when lowering a small
load that lets the frequency
converter avoid false detections of
missing motor phase.
This option is a reduced version of
option
[1] Trip 100 ms
.
1-phase missing is handled as in
option
[1] Trip 100 ms
. 3-phase
detection is reduced compared to
option
[1] Trip 100 ms
.
The 3-phase detection is only
working at start-up and in the low
4-58 Missing Motor Phase Function
Option:
Function:
speed range where a significant
current is running, avoiding false
trips during small motor current.
4.5.6 4-6* Speed Bypass
Some systems require that certain output frequencies or
speeds are avoided due to resonance problems in the
system. A maximum of 4 frequency or speed ranges can
be avoided.
4-60 Bypass Speed From [RPM]
Array [4]
Range:
Function:
Size
related
*
[ 0 - par. 4-13
RPM]
Some systems call for avoiding
certain output speeds due to
resonance problems in the system.
Enter the lower limits of the speeds
to be avoided.
4-61 Bypass Speed From [Hz]
Array [4]
Range:
Function:
Size
related
*
[ 0 - par. 4-14
Hz]
Some systems require that certain
output frequencies or speeds are
avoided due to resonance problems
in the system. Enter the lower limits
of the speeds to be avoided.
4-62 Bypass Speed To [RPM]
Array [4]
Range:
Function:
Size
related
*
[ 0 - par. 4-13
RPM]
Some systems call for avoiding
certain output speeds due to
resonance problems in the system.
Enter the upper limits of the speeds
to be avoided.
4-63 Bypass Speed To [Hz]
Array [4]
Range:
Function:
Size
related
*
[ 0 - par. 4-14
Hz]
Some systems call for avoiding
certain output speeds due to
resonance problems in the system.
Enter the upper limits of the speeds
to be avoided.
Parameter Descriptions
Programming Guide
MG06J202
Danfoss A/S © 03/2019 All rights reserved.
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Summary of Contents for VLT AutomationDrive FC 361
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