Hitachi SJ100 Instruction Manual page 127

4–10
Using Intelligent Input Terminals
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 acces-
sible 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.
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.
3rd
7th
5th
2nd
1st
6th
4th
0th
1
[CF1]
0
1
[CF2]
0
1
[CF3]
0
1
[FWD]
0
Option Terminal
Code Symbol
02 CF1
03 CF2
04 CF3
05 CF4
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)
Multi-
speed
Speed 0
Speed 1
Speed 2
Speed 3
Speed 4
Speed 5
Speed 6
Speed 7
Speed 8
Speed 9
Speed 10
Speed 11
Speed 12
Speed 13
Speed 14
Speed 15
NOTE: Speed 0 is set by the A_20
parameter value.
t
Input
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
Input Function
CF4 CF3 CF2 CF1
0 0 0
0 0 0
0 0 1
0 0 1
0 1 0
0 1 0
0 1 1
0 1 1
1 0 0
1 0 0
1 0 1
1 0 1
1 1 0
1 1 0
1 1 1
1 1 1
Description
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1