Motor Characteristics; Cooling Characteristics Of Motor With Shaft-Driven Cooling Fan - Fuji Electric FRN0001C2S-2A FRN0002C2S-2A FRN0004C2S-2A FRN0006C2S-2A FRN0010C2S-2A FRN0012C2S-2A FRN0020C2S-2A FRN0025C2S-2A FRN0033C2S-2A FR Instruction Manual

 Motor characteristics (F10)
F10 selects the cooling mechanism of the motor-- shaft-driven or separately powered cooling
fan.
Data for F10
1 For a general-purpose motor and Fuji standard permanent magnet synchronous
motor with shaft-driven cooling fan.
(The cooling effect will decrease in low frequency operation.)
2 For an inverter-driven motor with separately powered cooling fan.
(The cooling effect will be kept constant regardless of the output frequency.)
The figure below shows operating characteristics of the electronic thermal overload protection
when F10 = 1. The characteristic factors
switching frequencies f
The tables below list the factors determined by the motor capacity (P02) and the motor
characteristics (P99).

Cooling Characteristics of Motor with Shaft-driven Cooling Fan

Nominal Applied Motor and Characteristic Factors when P99 (Motor 1 selection) = 0 or 4
Nominal Thermal time
constant 
applied motor
kW (HP) (Factory default)
0.1 to 0.75
(1/8 to 1)
1.5 to 4.0
(2 to 5)
5.5 to 11 5 min
(7.5 to 15)
15 (20)
18.5 (25),
22 (30)
30 (40) 10 min

and f vary with the characteristics of the motor.
2 3
Reference current
for setting the
thermal time
constant (Imax)
Allowable
continuous current
 150%
5-29
Function

1 through 3 as well as their corresponding
Output frequency for
motor characteristic factor
f2 f3
7 Hz
5 Hz
6 Hz
7 Hz
5 Hz
Base Base
frequency frequency
 33%  33%
Characteristic
factor
1 2 3
75% 85% 100%
85% 85% 100%
90% 95% 100%
85% 85% 100%
92% 100% 100%
54% 85% 90%