Danfoss VLT Flow Drive FC 111 User Manual

Table 398: Range:
Min: 0%
Max: 100%
Default value: 10%
22-45 Setpoint Boost
Default value: 0%
Parameter type: Range
2-setup: All setups
Conversion index: 0
Data type: int8
Change during operation: True
Only to be used if parameter 1-00 Configuration Mode is set for [3] 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
increase extends the time the motor is stopped and helps to avoid frequent start/stop. Set the required overpressure/overtempera-
ture in percentage of setpoint for the pressure (P
set
)/ temperature before entering the sleep mode. If setting for 5%, the boost pres-
sure is P
set
x1.05. The negative values can be used for cooling tower control where a negative change is needed.
Table 399: Range:
Min: -100 %
Max: 100 %
Default value: 0%
22-46 Maximum Boost Time
Default value: 60 s
Parameter type: Range
2-setup: All setups
Conversion index: 0
Data type: u_int16
Change during operation: True
Only to be used if parameter 1-00 Configuration Mode is set for [3] 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, the drive enters the sleep mode
without waiting for the set boost pressure to be reached.
Table 400: Range:
Min: 0 s
Max: 600 s
Default value: 60 s
22-47 Sleep Speed [Hz]
Default value: 0
Parameter type: Range
2-setup: All setups
Conversion index: -1
Data type: u_int16
Change during operation: True
Set the speed below which the drive goes into sleep mode.
Table 401: Range:
Min: 0
Max: 400.0
Default value: 0
22-48 Sleep Delay Time
Default value: 0 s
Parameter type: Range
2-setup: All setups
Conversion index: 0
Data type: u_int16
Change during operation: True
Set the delay time that the motor waits before entering sleep mode when the condition to enter sleep mode is met.
Table 402: Range:
Min: 0 s
Max: 3600 s
Default value: 0 s
22-49 Wake-Up Delay Time
Default value: 0 s
Parameter type: Range
2-setup: All setups
Conversion index: 0
Data type: u_int16
Change during operation: True
Set the delay time that the motor waits before waking up from sleep mode when the condition for wake-up is met.
AU363928304090en-000101 / 130R0982 | 171Danfoss A/S © 2021.07
Parameters
VLT® Flow Drive FC 111
Programming Guide

Danfoss VLT Flow Drive FC 111 Specifications

General

Brand	Danfoss
Model	VLT Flow Drive FC 111
Category	DC Drives
Language	English