Danfoss VLT Automation Drive FC 360 Programming Manual page 113

Parameter Descriptions
22-46 Maximum Boost Time
Range: Function:
60 [0 - Only to be used when parameter 1-00 Configu-
s 600 s] ration Mode is set for 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]
Range: Function:
0 [ 0 - 400.0 ] Set the speed below which the frequency
*
converter goes into sleep mode.
4.19.2 22-6* Broken Belt Detection
Use broken belt detection in both closed 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
Option: Function:
Select the actions to be performed if the broken
belt condition is detected.
[0] Off
*
[1] Warning The frequency converter continues to run, but
activates a broken belt warning [W95]. A
frequency converter digital output, or a serial
communication bus communicates, a warning to
other equipment.
[2] Trip The frequency converter stops running and
activates a broken belt alarm [A95]. A frequency
converter digital outputs or a serial communi-
cation bus communicates an alarm to other
equipment.
22-61 Broken Belt Torque
Range: Function:
10 % [5 - 100 %] Sets the broken belt torque as a percentage
*
of the rated motor torque.
22-62 Broken Belt Delay
Range: Function:
10 s [0 - 600 Set the time for which the broken belt
*
s] conditions must be active before carrying out
the action selected in parameter 22-60 Broken
Belt Function.
MG06C602
Programming Guide
Danfoss A/S © 7/2015 All rights reserved.
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