Danfoss VLT FC 100 Series Programming Manual page 63

®
VLT HVAC Drive Programming Guide
4-54 Warning Reference Low
Range:
*
-999999.999 [-999999.999 -
999999.999]
4-55 Warning Reference High
Range:
*
999999.999 [-999999.999 -
999999.999]
4-56 Warning Feedback Low
Option:
[-999999.999 -999999.999
* +999999.999
]
4-57 Warning Feedback High
Range:
*
+999999.999 [-999999.999 to
+999999.999]
4-58 Missing Motor Phase Function
Option:
[0] Disabled
[1] Trip 100 ms
*
Trip 1000 ms
[2]
This parameter cannot be adjusted while the motor is running.
3.6.4. 4-6* Speed Bypass
Define the Speed Bypass areas for the ramps.
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]
*
0 RPM [0 - par. 4-13 RPM]
4-61 Bypass Speed From [Hz]
Array [4]
*
0 Hz [0 - par. 4-14 Hz]
Function:
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.
Function:
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.
Function:
to 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.
Function:
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.
Function:
Displays an alarm in the event of a missing motor phase.
Select [0] for no missing motor phase alarm. However the [On] setting is strongly recommended to avoid motor
damage.
Select 100 ms to have a short detection time and alarm in the event of a missing motor phase. 100 ms is
recommended for hoisting applications.
Select 1000 ms to have a long detection time and alarm in the event of a missing motor phase.
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.
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.
MG.11.C5.02 - VLT ® is a registered Danfoss trademark
3. Parameter Description
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