Hitachi SJ2002 Series Instruction Manual page 155

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.
Speed
3rd
7th
5th
2nd
1st
6th
4th
0th
1
[CF1]
0
1
[CF2]
0
1
[CF3]
0
1
[FWD]
0
Multi-speed Override Feature - The multi-speed function can selectively override the
external analog speed reference input. When the Frequency Source Setting parameter
A001=01, the control terminal inputs determine the output frequency. At the same time,
the inverter can use multi-speed select for output frequency if one or more intelligent
inputs are configured as a CF type (CF1 to CF4). When all CF input(s) are OFF, the
control terminal input determines the output frequency normally. When one or more CF
input(s) are ON, then the corresponding multi-speed setting (see the table above)
overrides and becomes the output frequency.
SJ200 Inverter
2
Input Function
Multi-
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
NOTE: Speed 0 is set by the A020
parameter value.
t
4–13
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