Danfoss VLT AutomationDrive FC 360 Programming Manual page 118

Parameter Descriptions
22-45 Setpoint Boost
Range:
0 % [-100
-
*
100 %]
4 4
22-46 Maximum Boost Time
Range:
60 [0 -
s 600 s]
*
22-47 Sleep Speed [Hz]
Range:
0 [ 0 -
*
400.0 ]
22-48 Sleep Delay Time
Range:
0 s [0 - 3600 s] Set the delay time that the motor waits
*
22-49 Wake-Up Delay Time
Range:
0 s [0 - 3600 s] Set the delay time that the motor waits
*
116
Function:
Only to be used if parameter 1-00 Configuration
Mode is set for [1] 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
temperature before entering the sleep mode.
If setting for 5%, the boost pressure is P
The negative values can be used for cooling tower
control where a negative change is needed.
Function:
Only to be used when parameter 1-00 Configu-
ration Mode is set for [1] 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.
Function:
Set the speed below which the frequency
converter goes into sleep mode.
The sleep speed must not exceed the setting in
parameter 22-43 Wake-Up Speed [Hz].
Function:
before entering sleep mode when the
condition to enter sleep mode is met.
Function:
before waking up from sleep mode when the
condition to wake up is met.
Danfoss A/S © 06/2017 All rights reserved.
®
VLT AutomationDrive FC 360
4.19.2 22-6* Broken-belt Detection
Use broken-belt detection in both closed-loop systems and
open-loop systems for pumps and fans. If the estimated
motor torque (current) is below the broken-belt torque
(current) value (parameter 22-61 Broken Belt Torque), and
the frequency converter output frequency is above or
equal to 15 Hz, parameter 22-60 Broken Belt Function is
performed.
22-60 Broken Belt Function
)/
set
Option:
x 1.05.
set
[0] Off
*
[1] Warning The frequency converter continues to run, but
[2] Trip
22-61 Broken Belt Torque
Range:
10 %
*
22-62 Broken Belt Delay
Range:
10 s
*
s]
Function:
Select the actions to be performed if the broken-
belt condition is detected.
activates warning 95, Broken belt. A frequency
converter digital output or a serial communication
bus communicates a warning to other equipment.
The frequency converter stops running and
activates alarm 95, Broken belt. A frequency
converter digital output or a serial communication
bus communicates an alarm to other equipment.
Function:
[5 - 100 %] Set the broken-belt torque as a percentage
of the rated motor torque.
Function:
[0 - 600 Set the time for which the broken-belt
conditions must be active before carrying out
the action selected in parameter 22-60 Broken
Belt Function.
MG06C702