Omron FQM1-CM001 Manuel D’Utilisation

• Set the clock speed for pulse outputs 1 and 2.

4.

Create the necessary ladder programming. 

• Use PULS(886) to set number of output pulses for the specified port.

• Use SPED(885) to start pulse output control without acceleration/deceler-

ation from the specified port.

• Use INI(880) to stop pulse output from the specified port.

• Use PRV(881) to read the pulse output PV of the specified port.

This procedure shows how to use PULS(886) and ACC(888) to generate a
pulse output with acceleration or deceleration. The number of output pulses
cannot be changed during positioning.

1.

Determine pulse output port.

• Select pulse output 1 or 2.

2.

Wire the output.

• Output: CW and CCW

• Output power supply: 5 V DC

3.

Make the necessary System Setup settings (Pulse Output Tab Page 

− Op-

eration Mode).

• Set the pulse output operation mode (in the Pulse Output Tab Page 

−

Operation Mode) to relative pulse output, absolute linear pulse output, or
absolute circular pulse output.

• Set the clock speed for pulse outputs 1 and 2.

4.

Create the necessary ladder programming. 

• Use PULS(886) to set number of output pulses for the specified port.

• Use ACC(888) to start pulse output control with acceleration or decelera-

tion from the specified port (acceleration and deceleration are specified
separately).

• Use INI(880) to stop pulse output from the specified port.

PULS

INI

SPED

A621

A620

A623

A622

A624
A625

CW

CCW

CW

CCW

Pulse output function

Pulse output mode

System Setup

Pulse output
port 1

Pulse output
port 2

Single-phase output 
without acceleration/
deceleration
(fixed duty ratio)

Start
output

Ladder program

Ladder program

Set the number of
output pulses.

Stop pulse output.

Output mode:
CW/CCW, independent/continuous

Target frequency

Start pulse output

Refresh status (once each cycle
just after instruction execution)

Refresh PV (once each cycle)

Pulse output status

Pulse output PV

Port 1

Port 1

Port 2

Port 2

SET PULSES

MODE CONTROL

SPEED OUTPUT