GE Industrial Solutions AF-650 GP General Purpose Drive (460_575_690V 125HP and above) - Manual (Page 78)

Using an analog input and 10 V as power supply:
Example: The frequency converter trips when the motor temperature is too high.
Parameter set-up:
Set par. F-10 Electronic Overload to Thermistor Trip [2]
Set par. F-12 Motor Thermistor Input to Analog Input 54 [2]
Input
Digital/analog Supply Voltage
Volt Threshold
Cut-out Values
Digital 24 V < 6.6 kΩ - > 10.8 kΩ
Digital 10 V < 800Ω - > 2.7 kΩ
Analog 10 V < 3.0 kΩ - > 3.0 kΩ
NB!
Check that the chosen supply voltage follows the specification of the used thermistor element.
Select Electronic Overload Warning 1-4, to activate a warning on the display when the motor is overloaded.
Select Electronic Overload Trip 1-4 to trip the frequency converter when the motor is overloaded.
Programme a warning signal via one of the digital outputs. The signal appears in the event of a warning and if the frequency converter trips (thermal warning).
Electronic Overload functions 1-4 will calculate the load when the set-up where they were selected is active. For example Electronic Overload 3 starts calculating
when setup 3 is selected. For the North American market: The Electronic Overload functions provide class 20 motor overload protection in accordance with NEC.
F-15 Motor Speed High Limit (Hz)
Range: Function:
50/60.0 Hz* [par. H-12 - par. H-19 Hz] Enter the maximum limit for motor speed. The Motor Speed High Limit can be set to correspond to the
manufacturer’s recommended maximum of the motor shaft. The Motor Speed High Limit must exceed
the in par. F-16 Frequency Limiter (Low). Only par. F-18 Speed Limiter (Low) or par. F-16 Frequency Limiter
(Low) will be displayed depending on other parameters in the Main Menu and depending on default
settings dependant on global location.
NB!
Max. output frequency cannot exceed 10% of the inverter frequency (par. F-26 Motor Noise (Carrier Freq)).
AF-650 GP High Power Operating Instructions
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