Danfoss VLT FC 100 Series Programming Guide

4-54 Warning Reference Low
Range: Function:
-999999.999 * [-999999.999 -
999999.999]
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:
999999.999 * [-999999.999 -
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
Option: Function:
[-999999.999
]
*
-999999.999 to
+999999.999
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:
+999999.999 * [-999999.999 to
+999999.999]
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 Select [0] for no missing motor phase alarm. However the [On] setting is strongly recommended to avoid motor
damage.
[1] Trip 100 ms 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.
[2]
*
Trip 1000 ms Select 1000 ms to have a long detection time and alarm in the event of a missing motor phase.
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]
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]
0 Hz * [0 - par. 4-14 Hz]
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.
VLT
®
HVAC Drive Programming Guide 3. Parameter Description
MG.11.C5.02 - VLT
®
is a registered Danfoss trademark 63
3

Danfoss VLT FC 100 Series Specifications

General

Brand	Danfoss
Model	VLT FC 100 Series
Category	DC Drives
Language	English