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Multi-Speed Select
The inverter can store up to 16 different target
frequencies (speeds) that the motor output uses for
steady-state run condition. These speeds are
accessible through programming five of the intelligent
terminals as binary-encoded inputs CF1 to CF4 per
the table to the right. These can be any of the six
inputs, and in any order. You can use fewer inputs if
you need eight or fewer speeds.
N
OTE: When choosing a subset of speeds to use,
always start at the top of the table, and with the
least-significant bit: CF1, CF2, etc.
The example with eight speeds in the
figure below shows how input switches
configured for CF1–CF3 functions can
change the motor speed in real time.
N
OTE: Speed 0 is set by the A020
parameter value.
Option
Code
Terminal
Symbol
Function Name State Description
ON Binary encoded speed select, Bit 0, logical 102 CF1 Multi-speed Select,
Bit 0 (LSB)
OFF Binary encoded speed select, Bit 0, logical 0
ON Binary encoded speed select, Bit 1, logical 103 CF2 Multi-speed Select,
Bit 1
OFF Binary encoded speed select, Bit 1, logical 0
ON Binary encoded speed select, Bit 2, logical 104 CF3 Multi-speed Select,
Bit 2
OFF Binary encoded speed select, Bit 2, logical 0
ON Binary encoded speed select, Bit 3, logical 105 CF4 Multi-speed Select,
Bit 3 (MSB)
OFF Binary encoded speed select, Bit 3, logical 0
Valid for inputs: C001~C005
Required settings
F001, A001=02,
A020 to A035
Notes:
x When programming the multi-speed settings, be
sure to press the Store key each time and then
set the next multi-speed setting. Note that when
the key is not pressed, no data will be set.
x When a multi-speed setting more than 50Hz
(60Hz) is to be set, it is necessary to program the
maximum frequency A004 high enough to allow
that speed
Example (some CF inputs require input
configuration; some are default inputs—see page 3–
49):
See I/O specs on page 4–6.
Multi-
speed
Input Function
CF4 CF3 CF2 CF1
Speed 0 0 0 0 0
Speed 1 0 0 0 1
Speed 2 0 0 1 0
Speed 3 0 0 1 1
Speed 4 0 1 0 0
Speed 5 0 1 0 1
Speed 6 0 1 1 0
Speed 7 0 1 1 1
Speed 8 1 0 0 0
Speed 9 1 0 0 1
Speed 10 1 0 1 0
Speed 11 1 0 1 1
Speed 12 1 1 0 0
Speed 13 1 1 0 1
Speed 14 1 1 1 0
Speed 15 1 1 1 1
Speed
0th
4th
6th
1st
2nd
5th
7th
3rd
1
0
1
0
1
0
1
0
[CF1]
[CF2]
[CF3]
[FW]
5 4 3 2 1 L
PCS
P24
CF1CF2CF3CF4
412
Operations and
Monitoring
4 12
Operations and
Monitoring