P47 Motor Overload Cooling Time PFN 17
LED Display LCD Display
Range 1.0 – 999.9 minutes (Default 30.0)
Description The Motor Overload Cooling Time parameter is the time to cool from 100% to less than (<) 1%. When the
motor is stopped, the overload content reduces exponentially based on Motor Overload Cooling Time
parameter.
Refer to the following equation:
So, a motor with a set cooling time of 30 minutes (1800 sec) with 100% accumulated OL content cools to
<1% OL content in 30 minutes.
z NOTE: Consult motor manufacturer data to determine the correct motor cooling time.
See Also Motor Running Overload Class (P3 / QST 03) parameter on page 76.
Independent Starting/Running Overload (P44 / PFN 13) parameter on page 106.
Motor Starting Overload Class (P45 / PFN 14) parameter on page 107.
Motor Overload Hot/Cold Ratio (P46 / PFN 16) parameter on page 108.
Theory of Operation section 7.1.8, Motor Cooling While Stopped on page 137.
Theory of Operation section 7.1.9, Motor Cooling While Running on page 138.
109
6 - PARAMETER DESCRIPTION
t
e
eCoolingTim
5
* Stopped enContent wh OL Content OL =
PFN: OL Cool Tim
17 30.0 min
To Next Page
Loading...
Need help?
General
