5-66
F codes
E codes
C codes
P codes
H codes
A codes
b codes
r codes
J codes
d codes
U codes
y codes
Chap. 5 FUNCTION 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).
Data for
F80
Drive mode Application Continuous current rating level
Overload
capability
Maximum
frequency
0
HD (High Duty)
mode
(default)
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 8 "SPECIFICATIONS."
The MD- and LD-mode inverters are subject to restrictions on the function code data setting range and internal
processing as listed below.
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 400 kW)
0.75 to 6 kHz
(500 and 630 kW)
Setting range:
0.75 to 2 kHz
(90 to 400 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 500 kW)
0.75 to 4 kHz
(630 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
(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
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
―
Switching to the LD mode does not automatically change the motor rated capacity (P02) 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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