Synchronous Encoder - Mitsubishi Electric MELSEC Q Series Programming Manual

7 AUXILIARY AND APPLIED FUNCTIONS

7.6 Synchronous Encoder

[Control details]
Ver.!
The synchronous encoder can be used in real mode by setting the synchronous
encoder used in the system setting.
The synchronous encoder set in the system setting can be used the following functions
in both of the real mode and virtual mode regardless of whether or not the
synchronous encoder is set in the mechanical program.
Functions
Current value storage register
(D1120+10n, D1121+10n)
Synchronous encoder current value change
• Servo instruction of Motion SFC (CHGA-E)
• Motion dedicated PLC instruction (D(P).CHGA)
Error reset command
(M5440+4n)
The input pulse from external synchronous encoder is always input after Multiple CPU
system's power supply ON. The input pulse is always input in real mode regardless of
the state for the clutch of mechanical system program or external signal.
Refer to the "Q173D(S)CPU/Q172D(S)CPU Motion controller Programming Manual
(VIRTUAL MODE)" for operation in virtual mode.
PLC ready (M2000)
Real mode/virtual mode
switching request flag (M2043)
Real mode/virtual mode
switching status flag (M2044)
Input pulse from external
synchronous encoder
Feed current value of
synchronous encoder axis
[pulse]
Ver.! : Refer to Section 1.3 for the software version that supports this function.
Multiple CPU system's power ON
ON
OFF
OFF
OFF
Real mode
Operation (drive of virtual axis) start
of synchronous encoder axis
7 - 13
Description
A current value of synchronous encoder is
updated for operation cycle.
A current value change of synchronous
encoder axis is executed.
An error reset of synchronous encoder axis
is executed.
ON
ON
Virtual mode
(2 -1)
31
(-2 )
31