B&R ACOPOSinverter P84, User Manual

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Programming guidelines
296 ACOPOSinverter P84 User's Manual 2.10
2.8.12.6 Delayed stop at a thermal overload alarm
This function is particularly for elevator applications. This function prevents the inverter from stopping between two
floors if the inverter or motor overheats, by authorizing operation until the next stop. At the next stop, the inverter
is locked until the thermal state falls back to a value, which undershoots the set threshold by 20%.
Example: A trip threshold set at 80% enables reactivation at 60%.
One thermal state threshold must be defined for the inverter, and one thermal state threshold for the motor(s),
which will trip the deferred stop.
[THERMAL ALARM STOP] (SAt-)
Code Name/Description Setting range Factory settings
SAt- [THERMAL ALARM STOP]
SAt [THERMAL ALARM STOP] [No] (nO)
nO [No] (nO) : Function inactive (in this case, the following parameters cannot be accessed)
YES [Yes] (YES) : Freewheel stop due to inverter or motor thermal alarm
Caution!
The inverter and the motor are no longer protected at stops due to thermal alarm. This invalidates the warranty. Check that the
possible consequences do not present any risk.
Failure to follow this instruction can result in equipment damage.
tHA [Drv therm. state al] 0 to 118% 100%
Thermal state threshold of the inverter tripping a deferred stop.
ttd [Motor therm. level] 0 to 118% 100%
Thermal state threshold of the motor tripping a deferred stop.
ttd2 [Motor2 therm. level] 0 to 118% 100%
Thermal state threshold of motor 2 tripping a deferred stop.
ttd3 [Motor3 therm. level] 0 to 118% 100%
Thermal state threshold of motor 3 tripping a deferred stop.
Parameter that can be modified during operation or when stopped.