Mitsubishi Electric MELSEC-Q Series Migration Manual page 299

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Table of Contents

*1 The counting speed is affected by the pulse rise/fall time. A count can be performed with the following counting speed.

Counting speed switch setting 200kpps

Rise/fall time

t = 1.25s or less

t = 2.5s or less

t = 25s or less

t = 500s or less

*2 The following table shows the minimum count pulse width for the QD62.

Counting speed switch setting

(Minimum phase differential for 2-phase input:

*3 The following table shows the minimum count pulse width for the RD62P2.

Pulse input mode

Waveform (in up count, duty ratio:

1-phase multiple of 1

count command

1-phase multiple of 2

count command

2-phase multiple of 1

Both 1- and 2-phase inputs

(Minimum phase differential for 2-phase input:

8 POSITIONING MODULE AND PULSE I/O MODULE MIGRATION

8.2 Comparison of Positioning Module and Pulse I/O Module Specifications

(Minimum phase differential for 2-phase input:

Minimum count pulse cycle, T, and phase difference, t (s), at

each counting speed

Melsec iq-r series