5.3 Description of Function Codes 5.3.1 F codes (Fundamental functions)
Switching between HHD and HND specification
The HHD specification is standard by default, and therefore use is possible with motor standard rated current one
to two ranks higher by switching to the HND specification. However, the overload capability will drop. The
specification for motor 2 to 4 will also change.
The HD specification for Fuji’s inverter FRENIC-MEGA (G1) series is equivalent to the HHD specification for this
model, and the LD specification is equivalent to the HND specification.
Double key operation ( key + / keys) is required to change function code F80 data.
High, Heavy
Duty
applications
Capable of driving a
motor whose capacity is
the same as the inverter
capacity.
150% for 1
min
200% for 3.0 s
High, Normal
Duty
applications
Capable of driving a
motor whose capacity is
one to two ranks higher
than the inverter capacity.
Refer to Chapter 12 “12.1 Standard Specifications” for details on specific rated current values. The factory default
is 0: HHD.
HND specification inverters are subject to restrictions on the function code data setting range and internal
processing as listed below.
DC braking 1 (Braking level)
DC braking 2 (Braking level)
DC braking 3 (Braking level)
DC braking 4 (Braking level)
Motor sound (Carrier frequency)
Default setting, setting value
Brake Signal Brake-release current
Brake signal brake-release current (REV)
Refer to explanation of each function code and selection guidance in Chapter 10 “10.4.2 Guideline for selecting
inverter drive mode and capacity.”
Due to the above restriction, if writing function codes continuously in ascending order by communication
with RS-485, etc., be sure to write F80 first.
Motor capacity 1 (P02) does not automatically move one rank up. Configure to match the applied motor
rating as required. Furthermore, if motor constants are initialized, set the motor type with P99 after setting
P02, and initialize the motor with H03. The same applies to motor 2 to 4.