Danfoss VLT FC 103 Programming Guide

4-52 Warning Speed Low
Range: Function:
0 RPM* [ 0
-
par.
4-53
RPM]
Enter the n
LOW
value. When the motor speed
falls below this limit (n
LOW
) the display reads
SPEED LOW. The signal outputs can be
programmed to produce a status signal on
terminal 27 or 29 and on relay output 01 or
02. Programme the lower signal limit of the
motor speed, n
LOW
, within the normal
working range of the frequency converter.
Refer to the drawing in this section.
4-53 Warning Speed High
Range: Function:
Size
related*
[ par.
4-52
-
par. 4-13
RPM]
Enter the n
HIGH
value. When the motor
speed exceeds this limit (n
HIGH
), the
display reads SPEED HIGH. The signal
outputs can be programmed to produce a
status signal on terminal 27 or 29 and on
relay output 01 or 02. Programme the
upper signal limit of the motor speed,
n
HIGH
, within the normal working range of
the frequency converter. Refer to
Illustration 3.20.
NOTE
Any
changes in 4-13 Motor Speed High Limit [RPM] will reset
the value in 4-53 Warning Speed High to the same value as
set in 4-13 Motor Speed High Limit [RPM].
If a different value is needed in 4-53 Warning Speed High, it
must be set after programming of 4-13 Motor Speed High
Limit [RPM]
4-54 Warning Reference Low
Range: Function:
-999999 * [ -999999.999
-
par.
4-55 ]
Enter the lower reference limit.
When the actual reference falls
below this limit, the display
indicates Ref
Low
. The signal outputs
can be programmed to produce a
status signal on terminal 27 or 29
and on relay output 01 or 02.
4-55 Warning Reference High
Range: Function:
999999 * [ par.
4-54
-
999999.999 ]
Enter the upper reference limit.
When the actual reference exceeds
this limit, the display reads Ref
High
.
The signal outputs can be
programmed to produce a status
signal on terminal 27 or 29 and on
relay output 01 or 02.
4-56 Warning Feedback Low
Range: Function:
-999999 Referen-
ceFeedbackUnit*
[ -999999.999
-
par.
4-57
ReferenceFeed-
backUnit]
Enter the lower
feedback limit. When
the feedback falls 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:
999999 Reference-
FeedbackUnit*
[ par.
4-56
-
999999.999
ReferenceFeed-
backUnit]
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:
Displays an alarm in the event of a missing
motor
phase.
[0] Disabled No alarm is displayed if a missing motor
phase
occurs.
[2] * Trip 1000 ms
NOTE
This
parameter cannot be adjusted while the motor is
running.
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: 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.
Parameter Description
VLT
®
Refrigeration Drive Programming Guide
MG16H102 - VLT
®
is a registered Danfoss trademark
57
3 3

Danfoss VLT FC 103 Specifications

General

Brand	Danfoss
Model	VLT FC 103
Category	DC Drives
Language	English