Omron CJ1W-CTS21-E Instruction Sheet

Model
CJ1W-CTS21-E
Synchronous Serial Interface (SSI) Unit
INSTRUCTION SHEET
(NJ-series Controllers)
Thank you for purchasing an OMRON product. Read this
instruction sheet thoroughly and familiarise yourself with the
functions and characteristics of the product before using it. To
ensure safe and correct use of this Unit, also read the Operation
and Programming Manuals for your NJ-series Controller system.
Keep this instruction sheet for future reference.
OMRON MANUFACTURING OF THE NETHERLANDS B.V.
 OMRON Corporation 2012 All Rights Reserved
! DANGER Do not attempt to take the Unit apart and do not
touch any internal parts while the power is being
supplied. Doing either of these may result in
electrical shock, and serious or fatal injury.
! Caution Leave the protective label on top of the Unit as long
as the Unit is not mounted and wired completely, in
order to prevent wire clippings or other materials
from getting inside the Unit. When the mounting
and wiring has been completed, the label must be
removed to allow air circulation and heat radiation.
Nomenclature
Unit status LED indicators
•
RUN (green)
•
ERC (red)
•
ERH (red)
•
CH1, CH2 (green)
Machine number rotary switches
Removable Terminal Block
• Connections for SSI-encoders
• Connection for power supply SSI-encoders
Terminal Block latch
•
Slide down to remove
•
Slide up to lock
Quick Start
1. Set all configuration device variables to 0. The Unit is now
configured as follows: 400kHz clock frequency, 24 bit Gray-
coded and a 40µs monoflop time, for both SSI channels.
2. Set Machine Number.
3. Mount and wire the Unit, the two SSI encoders and the
encoders power supply.
4. Turn power on.
5. Create I/O Table.
6. Both green CH1 and CH2 indicators should now turn on.
7. The encoder data can now be read from operational device
variables *_Ch1_SSIDat and *_Ch2_SSIDat.
Note: If you only want to connect one SSI encoder, the other SSI
channel has to be disabled. See section Configuration Device
Variables for CJ-series Units for further details.
PNSPO!
1
Unit specifications
Unit type
Applicable PLC models
Storage temperature
Ambient temperature
Ambient humidity
EMC compliance
Current consumption 300 mA (5VDC via bus connection)
Weight
•
Number of words
•
allocated
Dimensions
24
31
CTS21
RUN ERC ERH
CH1
CH2
B1 A1
M A C H M A C H M A C H M A C H
N o N o
N o N o
1
x 10
0
x 10
90
LED Indicators
Name Color State Unit status
RUN green On Normal operation
Off Initialisation error
ERC red On Unit error
(check *_ErrCode1/*_ErrCode2)
Off Unit has no errors
ERH red On NJ CPU Unit error
Off NJ CPU Unit has no errors
Name Color State Counter channel status
CH1, green On Channel configured and is
CH2 communicating without errors
Off Channel is not configured or a
communication error has occurred
Machine Number Switch
Name Function
MACHINE No. Sets the Machine Number (00 – 94).
•
Setting Machine Numbers 95-99
1
x10
will generate an error.
•
Make sure each Machine Number
0
x10
is used only once per NJ CPU.
•
The next higher Machine Number
should not be used on any unit, as it
would cause a CIO-data overlap
•
Be sure to turn off the power to
the Unit before setting the Machine
Number.
CJ1 Special I/O Unit
CJ/NJ-series PLCs
-20 to +75 °C
0 to +55 °C
10 to 90 % (non-condensing)
EN 50081-2, EN 61131-2
200 g (typical)
20 Operation Words
30 Configuration Words
65
CJ1W-CTS21-E
P N SP O
2-CHANNEL SSI UNIT
SSI DATA+CLK:RS-422 Line Driver, 1.5 MHz max.
EXT.PS FOR ENCODERS: 5-24 V DC, 0.8 A max.
Lot No. 000000N0000 Batch No. 000000000
OMRON MANUFACTURING OF THE NETHERLANDS B.V.
MADE IN THE NETHERLANDS
95