5.4 Details of Function Codes
5-121
Chapter 5 Function Code
Details of
Function Codes
F50 to F80
E codes
C codes
P codes
H codes
A codes
b codes
r codes
J codes
d codes
U codes
y codes
F80
Switching between HD, MD and LD drive modes
F80 specifies whether to drive the inverter in the high duty (HD), medium duty (MD) or low duty (LD) mode.
To change the F80 data, it is necessary to press the
+ keys or + keys (simultaneous keying).
Table 5.4-60
Data
for
F80
Drive mode Application Continuous current rating level
Overload
capability
Maximum
output
frequency
0
HD (High Duty)
mode
Heavy load
Capable of driving a motor whose
capacity is the same as the inverter's
150% for 1 min.
200% for 3 s
500 Hz
1
LD (Low Duty)
mode
Light load
Capable of driving a motor whose
capacity is one or two ranks higher
than the inverter's.
120% for 1 min. 120 Hz
2
MD (Medium
Duty) mode
Medium load
Capable of driving a motor whose
capacity is one rank higher than the
inverter's.
150% for 1 min. 120 Hz
In the MD/LD mode, the continuous current rating allows the inverter to drive a motor with one or two ranks
higher capacity, but the overload capability (%) against the continuous current rating is lower than that of the
HD mode. For the rated current level, see Chapter 12 "SPECIFICATIONS."
The MD- and LD-mode inverters are subject to restrictions on the function code data setting range and
internal processing as listed below.
Table 5.4-61
Function
codes
Name HD mode MD mode LD mode Remarks
F21
DC braking 1
(Braking level)
Setting range: 0 to
100%
Setting range: 0 to 80%
F26
Motor sound
(Carrier
frequency)
Setting range:
0.75 to 16 kHz
(0.4 to 55 kW)
0.75 to 10 kHz
(75 to 220 kW)
Setting range:
0.75 to 2 kHz
(90 to 220 kW)
Setting range:
0.75 to 16 kHz
(5.5 to 18.5 kW)
0.75 to 10 kHz
(22 to 55 kW)
0.75 to 6 kHz
(75 to 220 kW)
In the MD/LD mode, a
value out of the range, if
specified, automatically
changes to the
maximum value
allowable in the MD/LD
mode.
F44
Current limiter
(Operation level)
Initial value: 160%
Initial value:
145%
Initial value:
130%
Switching the drive
mode between HD, MD
and LD with function
code F80 automatically
initializes the F44 data to
the value specified at
left.
F03
Maximum output
frequency 1
Setting range: 25 to 500
Hz
Upper limit: 500 Hz
Setting range: 25 to 500 Hz
Upper limit: 120 Hz
In the MD/LD mode, if
the maximum frequency
exceeds 120 Hz, the
actual output frequency
is internally limited to
120 Hz.
―
Current
indication and
output
Based on the rated
current level for HD
mode
Based on the
rated current level
for MD mode
Based on the
rated current level
for LD mode
The rated capacity of motor 1 (P02) is not automatically changed to the one for the motor with one rank
higher capacity, so configure the P02 data to match the applied motor rating as required.
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