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Adjust and Function Specification
Ex. Motor: 60Hz, 4-pole, 1 horsepower, 220V, no-load current 1.2Arms
Inverter: 1 horsepower, 220V, rated current 4.2Arms, Cd06=100
Cd52 = Motor no-load current / (Inverter rated current ×Motor rated
current ratio Cd06 ) ×100%
= 1.2 / (4.2 ×100%) ×100%
= 28.5%
§Cd53 Motor slip differential compensation (Settable range 0-100)
This function is to compensate speed variation produced by load variation.
This function must accommodate the content of Cd52.
Setting value 0-100 in relative slip differential 0.0-10.0%
Ex. 60HZ, 4-pole 1700 rpm
Synchronous speed = 1800 rpm
Full-load speed = 1700 rpm
Slip differential speed = 1800-1700=100 rpm
Slip differential % = Slip differential speed / Synchronous speed ×100%
= 100 / 1800 ×100%
= 5.5%, Setting Cd52=55
Slip
differential
compensation
Load
variation
Time
Motor
speed
Motor
speed
Output
frequency
Without slip
differential
compensation
With slip
differential
compensation
With slip
differential
compensation
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