Omron CPM2C Operation Manual page 137

Wiring and Connections
High-speed Counter Inputs
Differential Phase Mode
(Count frequency: 5 kHz)
Encoder
Up/Down Mode
(Count frequency: 20 kHz)
Sensor
Sensor
Sensor or switch
PC Setup Settings
114
Using IR 00000 to IR 00002 as High-speed Counter Inputs
In these examples, Encoders with an external 24-VDC open-collector output
are connected.
CPM2C
00000 A-phase input
00001 B-phase input
00002 Z-phase input
COM
24 VDC
CPM2C
00000 CW input*
00001 CCW input*
00002 Reset input
COM
24 VDC
Note *CW is clockwise and CCW is counter-clockwise.
Using IR 00003 to IR 00006 as Interrupt Inputs (Counter Mode)
In these examples, an Encoder with an external 24-VDC open-collector output
is connected.
The input bits shown in the following tables can operate as normal inputs or
they can be assigned special functions in the PC Setup.
Special functions for input bits IR 00000 through IR 00002 are set in
DM 6642:
Bit
address
IR 00000 Used as normal
inputs.
IR 00001
IR 00002
Pulse Plus Direction Input Mode
(Count frequency: 20 kHz)
Encoder
Sensor or switch
Sensor or switch
Increment Mode
(Count frequency: 20 kHz)
Encoder
Increment or decrement
(Count frequency: 2 kHz)
Encoder
24 VDC
PC Setup setting (DM 6642 bits 08 to15)
00
Used as high-speed
counter inputs.
Section 3-4
CPM2C
00000 Pulse input
00001 Direction input
00002 Reset input
COM
24 VDC
CPM2C
00000 Pulse input
00001 Normal input
00002 Normal input
COM
24 VDC
CPM2C
Input (00003 to 00006)
COM
01 02, 03, or 04
Used as inputs for syn-
chronized pulse control.
Used as a normal input.