F-10 Electronic Overload - GE AF-600 FP Operating Instructions Manual

[30] Ext. Closed Loop 1
[31] Ext. Closed Loop 2
[32] Ext. Closed Loop 3

F-10 Electronic Overload

Option:
[0] No protection
[1] Thermistor warning
[2] Thermistor trip
7
[3] Elec. OL Warning 1
[4] * Elec. OL Trip 1
[5] Elec. OL Warning 2
[6] Elec. OL Trip 2
[7] Elec. OL Warning 3
[8] Elec. OL Trip 3
[9] Elec. OL Warning 4
[10] Elec. OL Trip 4
Electronic Overload functions 1-4 will calculate the load when set-up where they were selected is active. For example Elec. OL Warning 3 or Trip 3 starts calculating
when set-up 3 is selected. For the North American market: The Electronic Overload functions provide class 20 motor overload protection in accordance with NEC.
110
Function:
The frequency converter determines the motor temperature for motor protection in two different ways:
• Via a thermistor sensor connected to one of the analog or digital inputs (par. F-12 Motor Ther-
mistor Input).
• Via calculation of the thermal load, based on the actual load and time. The calculated thermal
load is compared with the rated motor current I
calculations estimate the need for a lower load at lower speed due to less cooling from the fan
incorporated in the motor.
If the motor is continuously overloaded and no warning or trip of frequency converter is wanted.
Activates a warning when the connected thermistor in the motor reacts in the event of motor over-
temperature.
Stops (trips) the frequency converter when the connected thermistor in the motor reacts in the event of
motor over-temperature.
AF-600 FP High Power Operating Instructions
and the rated motor frequency f
M,N
. The
M,N