Danfoss VLT HVAC Series User Manual

4-53 Warning Speed High
Range: Function:
par. 4-13
RPM*
[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. Program the upper signal limit of the motor speed, n
HIGH
, within the normal
working range of the adjustable frequency drive. Refer to the drawing in this section.
NOTE!
Any changes in par.4-13
Motor Speed High Limit [RPM] will reset the value in par.4-53 Warning Speed High to the same value as set
in par.4-13
Motor Speed High Limit [RPM] .
If a different value is needed in par.4-53
Warning Speed High , it must be set after programming of par.4-13 Motor Speed High Limit
[RPM]
!
4-54 Warning Reference Low
Range: Function:
-999999.99
9 N/A*
[-999999.999 - par. 4-55 N/A] 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
N/A*
[par. 4-54 - 999999.999 N/A] 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:
-999999.99
9 Proc-
essCtrlU-
nit*
[-999999.999 - par. 4-57 Proc-
essCtrlUnit]
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
ProcessCtr-
lUnit*
[par. 4-56 - 999999.999 ProcessCtr-
lUnit]
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.
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.
[0] Off No alarm is displayed if a missing motor phase occurs.
[1] * On An alarm is displayed if a missing motor phase occurs.
3 Parameter Description VLT
®
HVAC Drive Programming Guide
3-44 MG.11.C6.22 - VLT
®
is a registered Danfoss trademark
3

Danfoss VLT HVAC Series Specifications

General

Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short circuit
Communication Interfaces	Profibus, Ethernet
Cooling Method	Forced convection
Ambient Temperature	-10°C to +40°C
Enclosure Rating	IP20, IP21, IP55
Output Voltage	0 - 100% of supply voltage