Danfoss ADAP-KOOL Drive, Руководство по программированию, Страница: 179 / 262

It is possible to get a signal on one of the digital outputs by selecting End of Curve [192] in par. 5-3*
Digital Outputs
and/or par. 5-4*
Relays
. The signal
will be present, when an End of Curve condition occurs and the selection in par.22-50
End of Curve Function
, is different from Off. The end of curve
function can only be used when operating with the built-in PID controller (Closed loop in par.1-00
Configuration Mode
).
22-50 End of Curve Function
Option: Function:
[0] * Off End of Curve monitoring not active.
[1] Warning A warning is issued in the display [W94].
[2] Alarm An alarm is issued and the frequency converter trips. A message [A94] appears in the display.
NB!
Automatic restart will reset the alarm and start the system again.
22-51 End of Curve Delay
Range: Function:
10 s* [0 - 600 s] 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.
3.17.5 22-6* Broken Belt Detection
The Broken Belt Detection can be used in both closed and open loop systems for pumps, fans and compressors. If the estimated motor torque is below
the broken belt torque value (par.22-61
Broken Belt Torque
) and the frequency converter output frequency is above or equal to 15 Hz, the broken belt
function (par.22-60
Broken Belt Function
) is performed
22-60 Broken Belt Function
Option: Function:
Selects the action to be performed if the Broken Belt condition is detected
[0] * Off
[1] Warning
[2] Trip
22-61 Broken Belt Torque
Range: Function:
10 %* [0 - 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 s] Sets the time for which the Broken Belt conditions must be active before carrying out the action
selected in par.22-60
Broken Belt Function
.
3.17.6 22-7* Short Cycle Protection
When controlling refrigeration compressors, often there will be a need for limiting the numbers of starts. One way to do this is to ensure a minimum run
time (time between a start and a stop) and a minimum interval between starts.
This means that any normal stop command can be overridden by the
Minimum Run Time function (par.22-77 Minimum Run Time ) and any normal start
command (Start/Jog/Freeze) can be overridden by the Interval Between Starts function (par. 22-76 Interval between Starts ).
ADAP-KOOL ® Drive Programming Guide 3 Parameter Description
MG.11.N1.02 - VLT ® is a registered Danfoss trademark
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