Program description – Omron HOME SECURITY SYSTEM - MOTION SENSOR FQM1-MMA21 User Manual

Page 232

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209

Functions for Servo Drivers Compatible with Absolute Encoders

Section 7-7

7-7-11 Timing Chart of the Functions for Servo Drivers Compatible with

Absolute Encoders

7-7-12 Sample Programs (Connecting an OMRON W-series Servo Driver)

Program Description

1,2,3...

1.

With the Motion Control Module set to MONITOR mode, turning ON
CIO 0000.01 (absolute origin define) presets the absolute origin as the ab-
solute offset.

2.

With the Motion Control Module set to MONITOR mode, turning ON
CIO 0000.00 (absolute servo operation start) presets the absolute present
value in A600 and A601.

Counter value is not changed
while reading rotation data.

Min: (50+60) ms
Typ: (50+90) ms
Max: (50+260) ms

1 to 3 ms

Preset after 30 to 62.5 ms

50 ms

RUN Signal Output Bit

Absolute No. of Rotations

Read (A610.07)

High-speed Counter Start Bit

(A610.00)

Absolute PV Preset Bit

(A610.06)

SEN output

Phase A

Phase B

Absolute Present value

ON during 1 cycle

Initial incremental pulses

30 to 62.5 ms

User program
processing

Signals from
Servo Driver

The
latest
value

Absolute No. of Rotations

Read Completed Flag

If the absolute No. of
rotations read was
successful, SEN output
stays ON.

The high-speed counter
starts 50 ms after start of
the absolute No. of
rotations read.

Perform absolute PV preset
within 30 to 50 ms after the
read is completed.

Rotation data:

Motion
Control
Module's
internal
processing

Serial data (rotation data)
approx.15 ms

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