Fuji Electric FRENIC MEGA G2 Series - Page 274

5.3 Description of Function Codes 5.3.1 F codes (Fundamental functions)
5-90
Table When P99 = 1 or 3 (motor characteristic 1, 3)
Motor capacity
Thermal time
constant τ
(factory default)
Thermal time
constant setting
Standard current
value Imax
Characteristics coefficient
switch frequency
Characteristics
coefficient
f2
f3
1
2
3
0.2 to 22 kW
5 min
Continuous
allowance current
value x 150 %
Base
frequency x
33 %
Base
frequency x
33 %
69 %
90 %
90 %
30 to 45 kW
10 min
Base
frequency x
83 %
54 %
85 %
95 %
55 to 90 kW
51 %
95 %
95 %
110 kW or more
53 %
85 %
90 %
When F10=2 is set, cooling effect by output frequency will not decrease, therefore, overload detection level
becomes constant value (F11) without decrease.
Table If P99 = 20, 21, 22, or 23 (permanent magnet synchronous motor)
Motor capacity
Thermal time
constant τ
(Factory default)
Thermal time
constant setting
Standard current
value Imax
Characteristics coefficient
switch frequency
Characteristics
coefficient
f2
f3
1
2
3
90 kW or lower
5 min
Continuous
allowance current
value x 150 %
Base
frequency
F04 x 33%
Base
frequency
F04 x 83%
53%
85%
95%
110 kW or more
10 min
53%
85%
90%
 Operation level (F11)
F11 sets operation level of electronic thermal.
Normally, set the motor continuous allowance current (in general, about 1.0 to 1.1 times of motor rated current)
when operating at base frequency in ampere units.
For disabling electronic thermal as disable, set F11 = 0.00: Disable.