Omron CJ1W-TS562 User manual

Model
CJ1W-TS562
RTD input unit
INSTRUCTION SHEET
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 CJ1 PLC system.
Keep this instruction sheet for future reference.
OMRON MANUFACTURING OF THE NETHERLANDS B.V.
OMRON Corporation 2004 All Rights Reserved
■ General Specifications
Unit classification CJ-series Basic I/O Unit
Compatible Racks CJ-series CPU Rack or
CJ-series Expansion Rack
Max. number of
Units
10 Units/Rack max.
(This requires a CJ1G or CJ1H CPU)
CPU Unit data area
for inputs
Basic I/O area CIO0000 – 0999
(3, 4 or 6 words allocated in IO Table)
Insulation resistance
20 MΩmin. (at 500 V DC) between
input terminals and external AC
terminals (Power Supply Unit)
Dielectric Strength 500 VAC 50/60 Hz for 1 min. (detection
current: 1 mA),
between Input terminals and external
AC terminals (Power Supply Unit)
Internal current
consumption
250 mA max., 5 V DC,
from the CJ1 I/O bus.
Dimensions 31 x 90 x 65 mm (W x H x D)
Weight 150 g max.
Other Other general specifications conform to
the CJ-series general specifications.
See Operation Manual W393.
■ Unit Description ■ Characteristics
The CJ1W-TS562 is a 6-channel input unit for Pt100 and Pt1000
RTD’s. It can be installed in any CJ1-series PLC system. Temperature Sensor Pt100 or Pt1000 (IEC 60751)
Number of inputs 1 to 6
Measurement range Pt100: -200.0 to +650.0 °C
Pt1000: -200.0 to +650.0 °C
Indication resolution 0.1 °C
Leadwire
compensation
Automatic, measured on B’ terminals,
updates one sensor in each scan cycle.
Temperature value
Data representation
16-bit signed integer in units of 0.1 °C:
#F830 = -200.0 °C, #1964 = +650.0 °C
Indication accuracy
over full operational
range (0 – 55 °C
ambient temperature)
± 0.5 % of indicated value or ± 0.8 °C
(whichever is larger) ± 1 digit max.
when using 3-wire connection.
Input response time
(per active input)
40 ms (100 Hz suppression)
67 ms (60 Hz suppression)
80 ms (50 Hz suppression)
400 ms (50+60 Hz suppression)
Input update cycle
time (all active inputs)
[number of active inputs + 1] x [input
response time] + 40 ms
I/O refresh time
(influence on PLC
cycle time)
1-3 inputs (48pt mode): 0.008 ms
4 inputs (64pt mode): 0.011 ms
5-6 inputs (96pt mode): 0.016 ms
It is classified as a basic I/O unit, occupying 48, 64 or 96 I/O points,
depending on the number of activated inputs.
Always verify that the maximum I/O capacity of the CJ1 CPU is
sufficient for the number of required I/O points.
■ Nomenclature
Unit status indicators
• RUN (green)
• ERC (red)
Sensor error indicators
• 1 - 6 (red)
Removable Terminal Block
• Connections for
RTDs 1 through 6
DIP switches
(remove terminal block for access)
• Select input types (Pt100/Pt1000)
• Select filter functions
• Select number of active inputs (1-6)
Terminal Block latch
• Slide down to remove
• Slide up to lock
■ LED indicators
Name State Description
OFF Fatal error or no power supply.
• Check the host PLC’s CPU status, and the
status of other I/O units. If all other units
function normally, replace the Unit
RUN
(Green)
ON Unit functions normally.
OFF No fatal errors.
ERC
(Red) ON Incorrect DIP switch setting
Fatal error in the Unit.
• Check the CPU unit for error codes.
• Re-start the PLC system.
• If the ERC LED is still lit, replace the unit.
OFF • Measurement of the corresponding channel is
within range, or
• Channel has been deactivated by DIP switch
settings
ON • Measured temperature out-of-range, or
• RTD broken wire or short circuit
Sensor
Error
1 – 6
(Red)
All ON Calibration data not found or incorrect. The Unit
should be returned to OMRON for calibration.
■ Wiring
• Use the same length and type of leadwire for each RTD’s
terminals A, B, and B’, so that the leadwire impedances will be
the same. 2-wire connection can be used by shorting B-B’, but
the specified indication accuracy cannot be guaranteed.
• For activated but unused inputs, short-circuit the A–B and B–B’
terminals, to prevent unstable readout on the other inputs.
• Keep the input wiring away from power lines including AC power
supply lines and high-power lines. Do not run the I/O lines in the
same duct or conduit as power lines.
• The input circuits are galvanically isolated from the PLC’s I/O bus,
but there is no galvanic isolation between individual inputs. All B’
terminals are interconnected in the unit.
• Always ground the terminal on the Power Supply Unit of the
PLC. In case of shielded sensor wiring, connect the shields to the
same grounding point as the PLC.
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■ DIP switches ■ Data representation
8 DIP switches are accessible after removing the
front terminal block. Switch settings are processed at
time of power ON, and should not be changed while
the unit is powered.
Measured temperatures are indicated in °C. Each input value
occupies one word (16 bits) in the CIO area and is encoded as a
signed integer, with a resolution of 0.1 °C.
Examples: #0300 = 768 (dec) = 76.8 °C
Default (ex-factory) setting is all switches ON,
i.e. all 6 inputs are active and set to Pt100 sensor,
with filtering at n x 100 Hz. Be sure to adjust the
settings to your requirements before use.
#FF85 = -123 (dec) = -12.3 °C
Measured values are updated in CIO memory in each I/O refresh cycle.
The following values are to be interpreted as error codes:
Value Description
#7AAA Error detected at startup, or calibration data invalid
#7BBB Sensor error, broken wire or short circuit
#7CCC Measured value out of range (over max. Temperature)
#8CCC Measured value out of range (under min. Temperature)
SW 1, 2 and 3 : Input type selection
Any combination of input types (different numbers of Pt100/Pt1000
sensors) can be set.
SW State Input type selection
OFF Input channel 1 is Pt10001
ON Input channel 1 is Pt100
OFF Input channels 2 and 3 are Pt10002
ON Input channels 2 and 3 are Pt100
OFF Input channels 4, 5 and 6 are Pt10003
ON Input channels 4, 5 and 6 are Pt100
During initialisation after power ON, data of active inputs will be #0000
until the “Not Ready’ flag turns OFF.
■ ‘Not Ready’ flag
During initialisation after power-on, and in case of internal failure, a
‘Not Ready’ flag will be set in the PLC memory area A050 to A069
(Basic I/O Unit information area, refer to CJ1 Operation Manual W393
for details).
SW 4 + 5 : Input filtering (valid for all active input channels) The lower bit of each unit is the Not Ready flag; the error code
indicated in the remaining bits is relevant for repair purposes only.
While this flag is ON, the temperature sensor data indicated by the
unit in the CIO area is invalid.
Use filtering if the measured value is affected by the mains frequency or
other sources of electrical interference.
Address Bit When Bit = ON
00 Unit in rack 0, slot 0 is not readyA050
08 Unit in rack 0, slot 1 is not ready
00 Unit in rack 0, slot 2 is not readyA051
… …
00 Unit in rack 1, slot 0 is not readyA055
… …
00 Unit in rack 3, slot 9 is not readyA069
08 Unit in rack 3, slot 10 is not ready
SW4 SW5 Filtering Response time
OFF OFF n x 10 Hz suppression 400 ms each input
OFF ON n x 50 Hz suppression 80 ms each input
ON OFF n x 60 Hz suppression 67 ms each input
ON ON n x 100 Hz suppression 40 ms each input
SW 6+7+8 : Input activation
To prevent broken wire indication for unused inputs, and to reduce the
number of input channels occupied in CIO memory, the number of
required inputs can be set by SW 6+7+8.
■ Unit cycle time
Input words are allocated in the PLC’s CIO area as Basic I/O Unit, i.e.
sequentially starting at the leftmost unit. See CJ1-series Operation
Manual W393 for details. The internal processing time for all measurements by the unit is
determined by the number of active channels and the filter type.
Create the I/O table in the PLC after changing the switch settings, to
register the correct number of input words in the PLC CPU. The unit is
registered as 48-point, 64-point, or 96-point input unit, depending on the
number of 16-bit CIO words it occupies.
Measure Channel 1
Unit initialisation,
Measure all B’ leadwires
Check all sensors
Measure Channel 2
Measure Channel N
Measure one B’ leadwire
Check one sensor for error
The leadwire compensation
measurement and sensor error
detection for each input are
executed once every N cycles
(N = number of active inputs)
SW6 SW7 SW8 Active inputs Occupied input words
OFF OFF OFF Not valid, ERC indicator will be ON
ON OFF OFF 1 3 CIO words (1 used)*
OFF ON OFF 1, 2 3 CIO words (2 used)*
ON ON OFF 1, 2, 3 3 CIO words
OFF OFF ON 1, 2, 3, 4 4 CIO words
ON OFF ON 1, 2, 3, 4, 5 6 CIO words (5 used)*
OFF ON ON 1, 2, 3, 4, 5, 6 6 CIO words
ON ON ON 1, 2, 3, 4, 5, 6 6 CIO words
The leadwire measurement time
depends on the input filter
setting, whereas the sensor error
(broken wire) check takes a fixed
40 ms.
Example:
If 4 inputs are active, and
filtering is set to n x 50 Hz
(response time = 80 ms):
* In these cases, more CIO words will be occupied than required for the
active inputs. The remaining occupied CIO words will be filled with 0’s,
and cannot be used as work bits.
Each measurement cycle takes
(4+1) x 80 + 40 ms = 440 ms.
The leadwire compensation of
each channel is recalculated
every N x 440 ms = 1760 ms.
OMRON CORPORATION
OMRON ELECTRONICS LLC
Phone: [phone] or
1-800-55-OMRON
OMRON CANADA INC.
Phone: [phone]
Phone: [phone] (French)
Note: Specification subject to change without notice Printed in The Netherlands 1634292-5A
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