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Setting Method For Synchronous Encoder - Mitsubishi Electric RD77MS2 User Manual

Melsec iq-r simple motion module.
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Setting method for synchronous encoder

Incremental synchronous encoder
■Setting method
Connect the synchronous encoder to the "Manual pulse generator/Incremental synchronous encoder input" of the Simple
Motion module.
Set the input method for the incremental synchronous encoder signal using the following parameters. (It may be common to
use the same set up for the manual pulse generator input.)
• "[Pr.24] Manual pulse generator/Incremental synchronous encoder input selection"
• "[Pr.89] Manual pulse generator/Incremental synchronous encoder input type selection"
• "[Pr.151] Manual pulse generator/Incremental synchronous encoder input logic selection"
The synchronous encoder axis operates completely independently with the manual pulse generator operation.
The parameter and control data for the manual pulse generator operation except the 3 parameters listed
above has not influence on control of synchronous encoder axis. Therefore, they can also be controlled
simultaneously by common input pulses.
When the synchronous encoder axis connection is valid after the system's power supply is ON, it will be "Synchronous
encoder axis current value = 0", "Synchronous encoder axis current value per cycle = 0" and "Counter enabling status".
■Setting example
The following shows an example for setting an incremental synchronous encoder as synchronous encoder axis 2 of the
Simple Motion module.
RD77MS
RD77MS4
RUN
ERR
3
1
AX
AX
4
2
Set "1: Incremental synchronous encoder" in "[Pr.320] Synchronous encoder axis type" for the synchronous encoder axis 2.
And, set the input method for incremental synchronous encoder signal in the following parameters.
• "[Pr.24] Manual pulse generator/Incremental synchronous encoder input selection": "0: A-phase/B-phase multiplied by 4"
• "[Pr.89] Manual pulse generator/Incremental synchronous encoder input type selection": "0: Differential output type"
• "[Pr.151] Manual pulse generator/Incremental synchronous encoder input logic selection": "0: Differential output type"
2 INPUT AXIS MODULE
2.2 Synchronous Encoder Axis
Axis 1
Axis 2
Incremental
synchronous
encoder
Synchronous encoder axis 2
Axis 3

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