Danfoss VLT AQUA Drive FC 200 Operating Instructions Manual page 117

6 How to Programme the Low Harmonic Drive
22-46 Maximum Boost Time
Range:
60 s* [0 - 600 s]
22-50 End of Curve Function
Option:
[0] * Off
[1] Warning
[2] Alarm
[3] Man. Reset Alarm
6
NB!
Automatic restart will reset the alarm and start the system again.
NB!
Do not set par. 14-20
cause the drive to continuously cycle between running and stopping when a End of Curve condition is detected.
NB!
If the drive is equipped with a constant speed bypass with an automatic bypass function that starts the bypass if the drive experiences
a persistent alarm condition, be sure to disable the bypass's automatic bypass function, if [2] Alarm or [3] Man. Reset Alarm is selected
as the End of Curve Function.
22-51 End of Curve Delay
Range:
10 s* [0 - 600 s]
22-80 Flow Compensation
Option:
[0] * Disabled
[1] Enabled
22-81 Square-linear Curve Approximation
Range:
100 %* [0 - 100 %]
116
Function:
Only to be used if par. 1-00
is used for controlling the pressure.
Set the maximum time for which boost mode will be allowed. If the set time is exceeded, Sleep
Mode will be entered, not waiting for the set boost pressure to be reached.
Function:
End of Curve monitoring not active.
The drive will continue to run, but activate a End of Curve warning [W94]. A drive digital output or
a serial communication bus can communicate a warning to other equipment.
The drive will stop running and activate a End of Curve alarm [A 94]. A drive digital output or a
serial communication bus can communicate an alarm to other equipment.
The drive will stop running and activate a End of Curve alarm [A 94]. A drive digital output or a
serial communication bus can communicate an alarm to other equipment.
Reset Mode , to [13] Infinite auto reset, when par. 22-50 End of Curve Function is set to [2] Alarm. Doing so will
Function:
When an End of Curve condition is detected, a timer is activated. When the time set in this parameter
expires, and the End of Curve condition has been steady in the entire period, the function set in
par. 22-50 End of Curve Function will be activated. If the condition disappears before the timer
expires, the timer will be reset.
Function:
Disabled : Set-Point compensation not active.
[0]
[1] Enabled :Set-Point compensation is active. Enabling this parameter allows the Flow Compensated
Setpoint operation.
Function:
Example 1:
Adjustment of this parameter allows the shape of the control curve to be adjusted.
0 = Linear
100% = Ideal shape (theoretical).
MG.20.T1.02 - VLT
VLT AQUA Low Harmonic Drive Operating In-
Configuration Mode is set for Closed Loop and the integrated PI controller
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is a registered Danfoss trademark
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