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Prohibited frequency control (Fn_65 - Fn_68)
Fn_65 : Setting prohibited freq. 1 : 0 - 400 Hz
Fn_66 : Setting prohibited freq. 2 : 0 - 400 Hz
Fn_67 : Setting prohibited freq. 3 : 0 - 400 Hz
Fn_68 : Setting prohibited freq. range : 0 - 10 Hz
Example : When Fn_65 = 10.0 Hz, Fn_66 = 20.0 Hz, Fn_67 = 30.0 Hz, Fn_68 = 2.0 Hz
The skip freq. ranges are : 10 Hz
±
2 Hz = 8 - 12 Hz
20 Hz
±
2 Hz = 18 - 22 Hz
30 Hz
±
2 Hz = 28 - 32 Hz
Electronic thermal protection (motor & inverter) (Fn_69 - Fn_71)
Fn_69 : xxx0 - Electronic thermal motor protection effective
xxx1 - Electronic thermal motor protection ineffective
xx0x - Electronic thermal characteristics in accordance with standard motor
xx1x - Electronic thermal characteristics in accordance with special motor
x0xx - Motor protection OL : 103% continues, 150% for one minute
x1xx - Motor protection OL : 113% continues, 123% for one minute
0xxx - Free run to stop after electronic thermal motor protection is energized
1xxx - Operation continued after electronic thermal motor protection is energized
Fn_70 : Electronic thermal overload reference current (Motor rated current)
Fn_71 : xxx0 - Free run to stop after electronic thermal inverter protection is energized
xxx1 - Operation continued after electronic thermal inverter protection is
energized
1. The functions of electronic thermal motor protection are as follows:
a. Fn_69 = x0xx : To protect motor under normal machinery load
When motor output current exceeds 103%, motor protection electronic thermal
characteristics start operating. Motor protection (OL1) operates at 150% for one
minute to shut off inverter output. [ refer to curve (1) of Fig 4]
Fn_69 = x1xx : To protect motor under HVAC load (Fan, Pump,...etc.)
When motor output current exceeds 113%, motor protection electronic thermal
characteristics start operating. Motor protection (OL1) operates at 123% for one
minute to shut off inverter output.
