Hitachi NJI-350B manual FUN instructions-16, Pulse output with acceleration/deceleration, 919, 143

Chapter 5 Instruction Specifications

Item number

FUN instructions-16

Name

Pulse output with acceleration/deceleration

Ladder format

Condition code

Processing time (∝s)

Remark

R7F4

R7F3

R7F2

R7F1

R7F0

Average

Maximum

FUN 151 (s)

DER

ERR

SD

V

C

↕

z

z

z

z

Instruction format

Number of steps

919



Condition

Steps

FUN 151 (s)

Bit

Word

Double word

Constant

Usable I/O

Other

L,

TMR, CU,

WR,

DR,

TD, SS,

R,

WDT, MS,

X

Y

M

RCU, CT

WX

WY

WM

TC

DX

DY

DM

s

Pulse output No.

{

s+1

Total No. of output

{

pulses

s+2

Maximum frequency

{

(Hz)

s+3

Initial frequency (Hz)

{

s+4

Acceleration/deceleration

{

time (ms)

Function

	15	8	7	0
s	Pulse output No.			* *
s+1		Total No. of output pulses N
s+2		Maximum frequency F (Hz)
s+3		Initial frequency F0 (Hz)
s+4	Acceleration/deceleration time T (ms)

Pulse output No.:	H01 to H04
**:	Invalid area
Total No. of output pulses:	H0000 to HFFFF (0 to 65535)
Maximum frequency (Hz):	HA to H1388 (10 to 5000)
Initial frequency (Hz):	HA to H1388 (10 to 5000)
Acceleration/deceleration time (ms):	H0000 to HFFFF (0 to 65535)

This instruction outputs pulses with the acceleration/deceleration function.

It outputs pulses from the pulse output terminal set with the pulse output number s until the total number of output pulses set with s+1 is reached.

Since the output of pulses starts from the one having the frequency set with s+3, set the parameters so that the stepping motor and other devices will not become out of tune.

Acceleration is performed at the acceleration time set with s+4 in 10 steps until the maximum frequency set with s+2 is reached. Deceleration is performed at the deceleration time set with s+4 until the total number of output pulses set with s+1 is reached. The ratio of frequency change for the deceleration is the same as for the acceleration.

Pulse frequency (Hz)

F:S+2
	T / 10	9	1
		8	2
		7	3
	(F-F0) / 10	6	4
	5		5
	4		6
	3		7
	2		8
F0:S+3	1		9
	0		10
			Time (sec)
	Acceleration time		Deceleration time
	T:S+4		T:S+4
			5-143

FUN 151 (s)