2 frequency set-point/ actual frequency, Chapter5 operating, Figure 5-2 profidrive state diagram – Hitachi SJ-PB(T) User Manual

Page 19: Resolution 2, Bit after sign bit in 1, Byte 2 2

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CHAPTER5 OPERATING

15

START

Voltage

switched-off,

SW=0

OFF3 Active

Voltage on

CW: bit 0=0

bit 10=1

Not ready for

switch-on

SW: bit 5=0

SW: bit 0=0

bit 2=0
bit 6=0

CW: bit 0=0

bit 1=1
bit 2=1

bit 10=1

Ready for
switch-on

SW: bit 0=1

bit 4=1
bit 5=1

CW: bit 0=1

bit 10=1

Ready

SW: bit 1=1

Inhibit operation

active

Operation

inhibit

SW: bit 0=1

bit 4=1
bit 5=1

CW: bit 3=0

bit 10=1

A

C

B

D

Enable operation

CW: bit 3=1

bit 10=1

SW: bit 2=1

CW: bit 4=1

bit 10=1

CW: bit 4=0

C

B

D

Ready A B

C D

CW: bit 0=0

bit 10=1

OFF1 Active

Stage 1

OFF1 Active

Stage 2

SW: bit 1=0

n(f)=0, I=0

Load contactor open

Ready A B

C D

Ready to

switch-on

OFF2 Active

SW: bit 4=0

CW: bit 1=0

bit 10=1

Ready A B

C D

Ready to

switch-on

CW: bit 2=0

bit 10=1

Fault

Ready A B

C D

Ready to

switch-on

Fault

SW: bit 3=1

CW: bit 7=1

A

RFG enabled

output

C D

CW: bit 5=0

bit 10=1

B

CW: bit 5=1

bit 10=1

RFG Acc

enabled

D

CW: bit 6=0

bit 10=1

D

CW: bit 6=1

bit 10=1

Operating status

Outputing
frequency
(bit 10=1)

Switch-on inhibit

SW: bit0=0

bit1=0
bit2=0

bit 6=1

Drive running

Jogging active

Jog setpoint

to speed

controller

CW: bit 8=1

bit4=0
bit5=0
bit6=0

bit 10=1

CW: bit 8=0 or

bit 10=1

Jogging-pause

monitoring

n(f)=0, I=0

CW: bit 8=1

bit4=0
bit5=0
bit6=0

bit 10=1

n(f)=0, I=0

Figure 5-2 Profidrive state diagram

5.3.2 Frequency set-point/ Actual frequency

The data format is “Standardized value”, where 0 hex = 0 % and 4000 hex is 100% of Maximum frequency
specified in parameter A004.
Standardized value

A linear value.
0%=0 (0h), 100% is 2

14

(4000h)

Data type

N2

Range

-200%…200%-2

-14

Resolution

2

-14

= 0.0061%

Length

2 bytes

Notation: 2’s complement notation.

MSB is 1

st

bit after sign bit in 1

st

byte.

Sign bit = 0 = positive number
Sign bit = 1 = negative number

Bit

8

7

6

5

4

3

2

1

Byte 1

SIGN

2

0

2

-1

2

-2

2

-3

2

-4

2

-5

2

-6

Byte 2

2

-7

2

-8

2

-9

2

-10

2

-11

2

-12

2

-13

2

-14

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