Danfoss VLT Series Programming Manual page 61

Parameter Description
4-53 Warning Speed High
Range:
Size [
related 4-52 -
*
par. 4-13
3 3
RPM]
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:
-999999.999
*
4-55 Warning Reference High
Range:
999999.999
*
4-56 Warning Feedback Low
Range:
-999999.999
ProcessCtrlUnit
60
Function:
par. Enter the n value. When the motor
HIGH
speed exceeds this limit (n
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 , within the normal working range of
HIGH
the frequency converter. Refer to .
Function:
[ -999999.999 - Enter the lower reference limit.
par. 4-55 ] 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.
Function:
[ par. 4-54 - Enter the upper reference limit.
999999.999 ] 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.
Function:
[ -999999.999 - Enter the lower feedback
par. 4-57 limit. When the feedback
*
ProcessCtrlUnit] 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.
MG.11.CC.02 - VLT
®
VLT HVAC Drive Programming Guide
4-57 Warning Feedback High
Range:
999999.999
), the ProcessCtrlUnit
HIGH
4-58 Missing Motor Phase Function
Option:
[0] Disabled
[2] Trip 1000 ms
*
NOTE
This parameter cannot be adjusted while the motor is
running.
3.6.3 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
Application
dependent
®
is a registered Danfoss trademark
Function:
[ par. 4-56 - Enter the upper feedback
999999.999 limit. When the feedback
*
ProcessCtrlUnit] 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.
Function:
Displays an alarm in the event of a missing
motor phase.
No alarm is displayed if a missing motor
phase occurs.
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:
[ 0.0 - par. 4-14 Some systems call for
*
Hz] avoiding certain output
[Application speeds due to resonance
*
dependant] problems in the system.
Enter the lower limits of
the speeds to be
avoided.