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Multi-Speed Select ~Binary Operation
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 four 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.
NOTE: 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.
Speed
3rd
7th
5th
2nd
1st
6th
4th
0th
1
[CF1]
0
1
[CF2]
0
1
[CF3]
0
1
[FW]
0
Option
Terminal
Code
Symbol
CF1
02
CF2
03
CF3
04
CF4
05
Valid for inputs:
Required settings
Notes:
•
When programming the multi-speed settings,
be sure to press the SET key each time and then
set the next multi-speed setting. Note that when
the key is not pressed, no data will be set.
•
When a multi-speed setting more than 50Hz
(60Hz) is to be set, it is necessary to program the
maximum frequency
that speed
Function Name
Multi-speed Select,
Bit 0 (LSB)
Multi-speed Select,
Bit 1
Multi-speed Select,
Bit 2
Multi-speed Select,
Bit 3 (MSB)
C001~C007
F001, A001=02,
A020
to
A035
A004
high enough to allow
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.
NOTE: Speed 0 depends on
parameter value.
State
ON
Binary encoded speed select, Bit 0, logical 1
OFF
Binary encoded speed select, Bit 0, logical 0
ON
Binary encoded speed select, Bit 1, logical 1
OFF
Binary encoded speed select, Bit 1, logical 0
ON
Binary encoded speed select, Bit 2, logical 1
OFF
Binary encoded speed select, Bit 2, logical 0
ON
Binary encoded speed select, Bit 3, logical 1
OFF
Binary encoded speed select, Bit 3, logical 0
Example (some CF inputs require input
configuration; some are default inputs):
7
6
See I/O specs on
26
Multi-
Input Function
speed
CF4 CF3 CF2 CF1
Speed 0
0
0
Speed 1
0
0
Speed 2
0
0
Speed 3
0
0
Speed 4
0
1
Speed 5
0
1
Speed 6
0
1
Speed 7
0
1
Speed 8
1
0
Speed 9
1
0
Speed 10
1
0
Speed 11
1
0
Speed 12
1
1
Speed 13
1
1
Speed 14
1
1
Speed 15
1
1
Description
CF4 CF3 CF2 CF1
5
4
3
2
1
L
page 16,17.
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
A001
P24
PCS
PLC
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