Hi,
How to determine the required resistor for a given app. ?
What I have:
1.5kw (2hp) Inverter Duty motor, Fugi 2hp VFD.
Looked at Automation Direct catalog for a GS2 2hp VFD and 2 hp motor for reference and they call for a :
GS22PO-BR (resistor) which is:
230v/2hp,
Braking Torque ED 125% 100 ohm
POWER 300W
Duty Cycle 10%
Is there any ill effect from using a higher wattage than listed/necessary ? (sometimes, higher wattage ones are cheaper)
Must the resistance be kept at 100 ? I notice as the HP goes up, the res. goes down... 1 hp = 200 ohm
2 hp = 100, 3=70, 5=40, 10=20...and so on..
How critical is the selection ?
Is there a simple formula for determination ?
I like to "mix n' match" where I can.
Thanks