Danfoss ADAP-KOOL Drive Programming Manual page 179

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ADAP-KOOL Drive Programming Guide
It is possible to get a signal on one of the digital outputs by selecting End of Curve [192] in par. 5-3*
will be present, when an End of Curve condition occurs and the selection in par.22-50
function can only be used when operating with the built-in PID controller (Closed loop in par.1-00
22-50 End of Curve Function
Option:
[0] * Off
[1] Warning
[2] Alarm
NB!
Automatic restart will reset the alarm and start the system again.
22-51 End of Curve Delay
Range:
10 s* [0 - 600 s]
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 Function
function (par.22-60
22-60 Broken Belt Function
Option:
[0] * Off
[1] Warning
[2] Trip
22-61 Broken Belt Torque
Range:
10 %* [0 - 100 %]
22-62 Broken Belt Delay
Range:
10 s [0 - 600 s]
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
command (Start/Jog/Freeze) can be overridden by the
Function:
End of Curve monitoring not active.
A warning is issued in the display [W94].
An alarm is issued and the frequency converter trips. A message [A94] appears in the display.
Function:
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
expires, the timer will be reset.
Broken Belt Torque
) and the frequency converter output frequency is above or equal to 15 Hz, the broken belt
) is performed
Function:
Selects the action to be performed if the Broken Belt condition is detected
Function:
Sets the broken belt torque as a percentage of the rated motor torque.
Function:
Sets the time for which the Broken Belt conditions must be active before carrying out the action
Broken Belt Function
selected in par.22-60
Minimum Run Time
Interval Between Starts
MG.11.N1.02 - VLT ® is a registered Danfoss trademark
Digital Outputs
End of Curve Function
, is different from Off. The end of curve
Configuration Mode
will be activated. If the condition disappears before the timer
.
function (par.22-77 Minimum Run Time
function (par. 22-76 Interval between Starts
3 Parameter Description
Relays
and/or par. 5-4* . The signal
).
) and any normal start
).
3
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