Hitachi SJ300-037HFE Benutzerhandbuch

SJ300 Inverter

Oper

ati
ons

and Monitor

ing

The Bit Operation method of speed control uses up to seven intelligent inputs to select from up 
to eight speeds. Since the all-switches-OFF combination selects the first speed, you only need 
N-1 switches to select N speeds. With Bit Operation speed control, only one input is normally 
active at a time. If multiple switches are ON, the lower numbered input takes precedence 
(determines the speed). The table and figure below show how the input combinations work.

The following table lists the option codes for assigning [SF1 to [SF7] to the intelligent inputs.

0th

SF1

SF2

SF3

3rd

4th

2nd

5th

1st

7th
6th

Speed

Switches

Fwd Run

SF4

SF5

SF6

SF7

Speed  0

0

0

0

0

0

0

0

Speed  1

—

—

—

—

—

—

1

Speed  2

—

—

—

—

—

1

0

Speed 3

—

—

—

—

1

0

0

Speed  4

—

—

—

1

0

0

0

Speed  5

—

—

1

0

0

0

0

Speed  6

—

1

0

0

0

0

0

Speed  7

1

0

0

0

0

0

0

32

SF1

Bit-level speed select 1

Bit-level speed select, Bit 0

33

SF2

Bit-level speed select 2

Bit-level speed select, Bit 1

34

SF3

Bit-level speed select 3

Bit-level speed select, Bit 2

35

SF4

Bit-level speed select 4

Bit-level speed select, Bit 3

36

SF5

Bit-level speed select 5

Bit-level speed select, Bit 4

37

SF6

Bit-level speed select 6

Bit-level speed select, Bit 5

38

SF7

Bit-level speed select 7

Bit-level speed select, Bit 6

C001, C002, C003, C004, 
C005, C006, C007, C008

F001, A020 to A035
A019=00

Notes: 
• When all [SFx] inputs are OFF, the speed is 

set by default to the value in F001.

• 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.

5

3

1

7

6

4

2

8

FW

TH

PLC

CM1

P24

CM1

Example: (Requires input configuration—
see page 

. Jumper position shown is 

for –xFU/-xFR models; for –xFE models, 
see page 

SF1

SF3

SF5

SF7

SF2

SF4

SF6