Trane TR200 - Main Menu - Adjustable Frequency Drive Information - Group 15

Select Function at Inverter Overload , par.14-61 Function at Inverter Overload to automatically reduce pump speed
until the output current is below 100% of the rated current (set in par.14-62
Inv. Overload Derate Current).
The
Function at Inverter Overload is an alternative to letting the adjustable frequency drive trip.
The adjustable frequency drive estimates the load on the power section by means of an inverter load counter,
which will cause a warning at 98% and a reset of the warning at 90%. At the value 100%, the adjustable frequency
drive trips and provides an alarm.
Status for the counter can be read in par.16-35
Inverter Thermal.
If par.14-61
Function at Inverter Overload is set to Derate, the pump speed will be reduced when the counter
exceeds 98, and stay reduced until the counter has dropped below 90.7.
If par.14-62
Inv. Overload Derate Current is set, for example, to 95% a steady overload will cause the pump speed
to fluctuate between values corresponding to 110% and 95% of rated output current for the adjustable frequency
drive.
14-61 Function at Inverter Overload
Option: Function:
Is used in case of steady overload beyond the thermal limits (110% for
60 sec.).
[0] * Trip Choose Trip [0] to make the adjustable frequency drive trip and provide
an alarm.
[1] Derate Derate [1] to reduce pump speed in order to decrease the load on the
power section and allowing this to cool down.
14-62 Inv. Overload Derate Current
Range: Function:
95 %* [50 - 100 %] Defines the desired current level (in % of rated output current for the
adjustable frequency drive) when running with reduced pump speed af-
ter load on the adjustable frequency drive has exceeded the allowable
limit (110% for 60 sec.).
Main Menu - Adjustable Frequency Drive Information - Group 15
15-** Drive Information
Parameter group containing adjustable frequency drive information such as operating data, hardware config-
uration and software versions.
15-0* Operating Data
Parameter group containing operating data, such as operating hours, kWh counters, power-ups, etc.
15-00 Operating Hours
Range: Function:
0 h* [0 - 2147483647 h] View how many hours the adjustable frequency drive has run. The value
is saved when the adjustable frequency drive is turned off.
Parameter Description
4-130 TR200 Programming Guide