Danfoss VLT AutomationDrive FC 360 Programming Manual page 280

Programming Guide | VLT® AutomationDrive FC 360
22-44 Wake-Up Ref./FB Diff
Default value:
10%
Setup:
All setups
Data type:
Uint8
Only to be used if parameter 1-00 Configuration Mode is set to [1] Speed closed loop, and the integrated PI controller is used for
controlling the pressure. Set the pressure drop allowed in percentage of setpoint for the pressure (P
22-45 Setpoint Boost
Default value:
0%
Setup:
All setups
Data type:
Int8
Only to be used if parameter 1-00 Configuration Mode is set to [1] Speed closed loop, and the integrated PI controller is used. In systems
with, for example, constant pressure control, it is advantageous to increase the system pressure before the motor is stopped. This
extends the time in which the motor is stopped and helps to avoid frequent start/stop. Set the desired overpressure/temperature in
percentage of setpoint for the pressure (P
The negative values can be used for cooling tower control where a negative change is needed.
22-46 Maximum Boost Time
Default value:
60 s
Setup:
All setups
Data type:
Uint16
Only to be used if parameter 1-00 Configuration Mode is set to [1] Speed closed loop, and the integrated PI controller is used for
controlling the pressure. Set the maximum time for which boost mode is allowed. If the set time is exceeded, sleep mode is entered, not
waiting for the set boost pressure to be reached.
22-47 Sleep Speed [Hz]
Default value:
0.0
Setup:
All setups
Data type:
Uint16
Set the speed below which the drive goes into sleep mode. The sleep speed must not exceed the setting in parameter 22-43 Wake-Up
Speed [Hz].
22-48 Sleep Delay Time
Default value:
0 s
Setup:
All setups
Data type:
Uint16
Set the delay time that the motor waits before entering sleep mode when the condition to enter sleep mode is met.
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Parameter type:
Conversion index:
Change during operation:
Parameter type:
Conversion index:
Change during operation:
)/ temperature before entering the sleep mode. If set to 5%, the boost pressure is P
set
Parameter type:
Conversion index:
Change during operation:
Parameter type:
Conversion index:
Change during operation:
Parameter type:
Conversion index:
Change during operation:
Range (0–100%)
0
True
) before canceling the sleep mode.
set
Range (-100–100%)
0
True
set
Range (0–600 s)
0
True
Range (0.0–400.0)
-1
True
Range (0–3600 s)
0
True
AU275649936274en-001401 / 130R0507
x 1.05.