Mitsubishi Electric Q172CPU User Manual download pdf (Page 73)

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2 SYSTEM CONFIGURATION

(3) Select to number of the synchronous encoder modules

Synchronous encoders are available in voltage output type(incremental),

differential output type(incremental) and serial absolute output type(MR-HENC).

Q172EX(-S1) can be connected to only serial absolute output type(MR-HENC).

Q172EX-S2/-S3 can be connected to only serial absolute output type

(Q170ENC). When using the incremental synchronous encoder of voltage output

type or differential output type, must be used Q173PX. (The synchronous

encoders are used only in the SV22 virtual mode.)

In addition, the usable numbers of synchronous encoders differ depending on the

modules.

The following number of serial absolute synchronous encoders and incremental

synchronous encoders combined can be used.

Motion CPU module Synchronous encoder

Q173CPU(N)

Up to 12 modules

( Q172EX: Up to 6 modules )

Q172CPU(N)

Up to 8 modules

( Q172EX: Up to 4 modules )

• Tracking enable signal

Tracking enable signal of Q172EX is used as a high-speed reading

function. It cannot be used, as the input start signal which start the input

form serial absolute synchronous encoders.

When using the inputs start signal which start the input from synchronous

encoder, must be used Q173PX. (Type of synchronous encoder is voltage

output(incremental)or differential output(incremental). )

The external input signal of the synchronous encoder is indicated below.

External input signal of the

synchronous encoder

Item

Number of points

on one Q172EX

Tracking enable signal input High-speed reading function 2 points

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 233 234

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Mitsubishi Electric Q172CPU User Manual Page 73