LG Electronics 120S user manual PWM output PWM, Pwm, SV1 SV2

Chapter 7 Usage of Various Functions

5) PWM output (PWM)

PWM

PWM(Pulse Width Modulation) output

Instruction

Available device

No. of

Flag

M

P

K

L

F

T

C

S

D

#D

integer

steps

Error

Zero

Carry

(F110)

(F111)

(F112)

S

○

SV1

○

○

○

○

○

○

○

○

○

○

7

○

SV2

○

○

○

○

○

○

○

○

○

○

Flag set

Error	Error flag turns on when designating area is over
(F110)	and the instruction isn’t executed

Designation

SCh. for PWM output(0~1)

SV1	PWM output period( 1 ~ 20000)[ms]
SV2	Off Duty(0 ~ 100%)

■ PWM S SV1 SV2

(1)Functions

•When input condition turns on, Output pulses which have period as SV1.

•Duty ratio of pulses is assigned by SV2.

•When input condition turns off, PWM operation stops

(2)Example program

•When input condition turns on, Output pulses as below

Positioning Ch 1(P41)

450ms 50ms

Input condition(M0000)

500ms

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