Omron EJ1 Instruction Manual

EJ1
Temperature controller
EN
Instruction Manual
Thank you for purchasing the OMRON Product. To
ensure the safe application of the Product, only a
professional with an understanding of electricity and
electric devices must handle it. Read this manual
carefully before using the Product and always keep it
close at hand when the
Product is in use.
OMRON CORPORATION
©All Rights Reserved
1132575-5A
EJ8
For detailed operating instructions, please refer to the EJ1
Modular Temperature Controller User's Manual (Cat. No.
H142) or the EJ1 Modular Temperature Controller
(Gradient Temperature Control Model) User's Manual (Cat.
No. H143).

Safety Precautions

●Key to Warning Symbols
Indicates a potentially hazardous situation which, if
not avoided, is likely to result in minor or moderate
injury or property damage. Read this manual
CAUTION
carefully before using the product.

■Wiring

●Dimensions (mm)
[EJ1□-TC: Basic Unit] In the pack: • Basic Unit
• Instruction manual
(Screws (Screw-Less
Screw Terminals
Terminals) Clamp Terminals) Screw-Less Clamp Terminals
31 31
●Installation
• Connecting Units
1. Align the connector and 2. Slide the yellow sliders on the
connect the Units to tops and bottoms of the Units
each other. Connect and until they click into place.
End Unit to the Unit on
the right end. (Up to 16
Units can be connected
side by side.)
Slider
Precautions for Correct Use
* Do not connect an End Unit directly to an Advanced Unit.
* Always connect an End Unit to the right side of a Basic Unit.
* This Unit cannot be connected to the CJ1 Series.
* Use the EJ1G-□□ in the configuration when performing gradient temperature control, and use the EJ1N-□□
when not performing gradient temperature control.
* When removing the terminal block and replacing the Unit, make sure that the new Unit matches the original Unit.
• Mounting to the DIN Rail
<Mounting>
Insert the hooks on the top of the EJ1 into the DIN Rail
and press the EJ1 until the hooks lock into place.
②Insert the upper hooks
into the DIN Rail.
③Press in
on the
①Lower the ④Make sure the
EJ1.
hooks. EJ1 is locked
into place.
●Connections
• EJ1□-TC4□-□□□□
Voltage Voltage
output output
OUT2 +
B1
OUT4
+
A1
DC12V
+
OUT1 B2 DC12V
+
A2
DC12V OUT3
B3
DC12V
–
A3
–
ch2
+ ch4
A
B4
A
A4
mA
– –
B
B5
–
B
V TC A5
+
B
B6 TC
+
B
A6
+
ch1
ch3
+
A
B7
A
A7
mA
– –
B
B8
– B
V TC A8
+
B
B9 TC
+ B
A9
+
Analog Pt TC
input input input
* Terminals A10 and B10 of the screw-less clamp terminals are not used.
* Port A (Connector) is used only to connect the Temperature Controller to a computer when using the Setup Tool.
E58-CIFQ1 USB-Serial Conversion Cable is required for the connection. (Do not use the product with the Cable left permanently
connected.) Refer to the Instruction Manual provided with the USB-Serial Conversion Cable for details on connection methods.
* When wiring a voltage input, be sure to connect the correct terminals. Incorrect wiring may cause EJ1 failure.
• Wiring Procedure for Screw-Less Clamp Terminals
B1
There are two holes for each terminal.
A1
The hole on the right is the operating
B2
A2 hole; the hole on the left is the wire hole.
B3
A3
Insert a flat-blade screwdriver with a
B4
width of 2.5 mm into the operating hold
A4
B5
and then wiring into the wire hole. The
A5
wire will be clamped when
B6
screwdriver is removed.
A6
B7
A7
Use crimp terminals for wiring that match
B8
the cross-sectional area of the wiring
A8
material.
B9
B10
• We recommend the crimp terminals:
A9
A10
Weidmuller H-sleeve series
●Warning Symbols
CAUTION
Do not touch the terminals while power is being supplied.
Doing so may occasionally result in minor injury due to electric shock.
Use a power supply that complies with the reinforced insulation
specified in IEC 60664 for the EJ1 external power supply or the power
supply connected to the EJ1. If non-compliant power supplies are
used, electric shock may occasionally result in minor injury.
Do not allow pieces of metal, wire clippings, or fine metallic shavings
or filings from installation to enter the product. Doing so may
occasionally result in electric shock, fire, or malfunction.
Do not use the product where subject to flammable or explosive gas.
Otherwise, minor injury from explosion may occasionally occur.
Never disassemble, modify, or repair the product or touch any of the
internal parts.
Minor electric shock, fire, or malfunction may occasionally occur.
Tighten the terminal screws to between 0.40 and 0.56 N･m. Loose
screws may occasionally result in fire.
Set the parameters of the product so that they are suitable for the
system being controlled. If they are not suitable, unexpected operation
may occasionally result in property damage or accidents.
A malfunction in the product may occasionally make control operations
impossible or prevent alarm outputs, resulting in property damage. To
maintain safety in the event of malfunction of the product, take
appropriate safety measures, such as installing a monitoring
device on a separate line.
Gradient temperature control controls the average temperature for
multiple channels. Therefore, if a heater burnout occurs during gradient
temperature control, the temperature for that channel will drop and the
temperature for the other channels will rise, which may occasionally result
in property damage. During gradient temperature control, provide safety
measures using information such as using the heater burnout alarm and
temperature data for each channel.
[EJ1C-EDU: End Unit]
: 109
: 104.85
15.7 15.7
3. Attach the cover seal to
the connector on the Unit
on the left end.
ロック ロック Lock
Cover seal
<Dismounting>
Pull down on the
hooks with a flat-blade
screwdriver and lift up
on the EJ1.
Vertically: OK Horizontally: Not OK
Flat-blade Screwdriver
• EJ1□-TC2□-Q□□□
OUT2
+
B1
A1
DC12V
+
B2
OUT1
OUT4
A2
DC12V
B3
OUT3
–
A3
COM
ch2
+
A
B4
+ A4
mA
– –
B
B5 EV2
mA
– A5
V TC ※
+
B
B6 EV1
+
V
A6
+
ch1
+
A
B7
A7
+ mA
–
B –
B8
CT2
mA
– A8
V TC
+
B
B9
CT1
+
V
+ A9
* Cannot be used for the Gradient Temperature Control Model (EJ1G).
●To Conform to UL/CSA Standards
•The power supply terminals must be supplied from a
SELV, limited-current source.
A SELV (safety extra-low voltage) source is a power supply
having double or reinforced insulation between the primary
and the secondary circuits and having an output voltage of
30 V r.m.s. max. and 42.4 V peak max. or 60 VDC max.
•This is a class A product. In residential environment areas
it may cause radio interference, in which case the user
the
may be required to take adequate measures to reduce
interference.
●Functional insulation is provided between the power supply,
input, output, and power supply terminals. If reinforced or
double insulation is required, use a power supply that
complies with the reinforced or double insulation standards
specified in IEC 60664 for the EJ1 external power supply
and for the power supply connected to the EJ1.
Precautions for Safe Use
1) The product is designed for indoor use only. Do not use the product outdoors or in any of the following locations.
• Places directly subject to heat radiated from heating equipment.
• Places subject to splashing liquid or oil atmosphere.
• Places subject to direct sunlight.
• Places subject to dust or corrosive gas (in particular, sulfide gas or ammonia gas).
• Places subject to intense temperature change.
• Places subject to icing or condensation.
• Places subject to vibration or strong shocks.
2) Use and store the product within the rated temperature and humidity ranges. Provide forced-cooling if required.
3) To allow heat to escape, do not block the area around the product. Do not block the ventilation holes on the product.
4) Be sure to wire properly with correct polarity of terminals.
5) Use specified size (M3, width 5.8 mm or less) crimped terminals for wiring. To connect bare wires to the
terminal block, use copper braided or solid wires with a gage of AWG22 to AWG14 (equal to cross-
sectional area of 0.326 to 2.081 mm
cross-sectional area of 0.081 to 1.309 mm
Up to two wires of same size and type, or two crimped terminals can be inserted into a single terminal.
6) Do not wire terminals that do not have an identified use.
7) Allow as much space as possible between the product and devices that generate a powerful high-
frequency or surge. Separate the high-voltage or large-current power lines from other lines, and avoid
parallel or common wiring with the power lines when you are wiring to the terminals.
8) Use the product within the rated load and power supply.
9) Make sure that the rated voltage is attained within 2 seconds of turning ON the power.
10) Make sure that the product has 30 minutes or more to warm up after turning ON the power before
starting actual control operations to ensure the correct temperature display.
11) The switch or circuit breaker must be within easy reach of the operator, and must be marked as a
disconnecting means for this unit.
12) Do not use paint thinner or similar chemical to clean with. Use standard grade alcohol.
13) Design the system (e.g., the control panel) allowing leeway for the delay required before product outputs
are valid after turning ON power to the product.
14) Never touch the electronic components, connectors, or patterns on product boards with your bare
hands. Always hold the product by the case. Inappropriately handling the product may occassionally
damage internal components due to static electricity.
15) Use a switch, relay, or other device with contacts to turn OFF the power supply quickly. Gradually
lowering the voltage of the power supply may result in incorrect outputs or memory errors.
16) Do not touch the electronic components with your hands or subject them to shock when removing the
terminal block.
17) Connect only the specified number of products in only a specified configuration.
18) Mount the product to a DIN Rail mounted vertically to the ground.
19) Always turn OFF the power supply before wiring the product, replacing the product, or changing the
product configuration.
20) Attach the enclosed cover seal to the connector opening on the left end product during installation.
21) Do not use port B on the End Units when using port C on Advanced Units.
In the pack: • End Unit
• Instruction manual
• End Plate
Screw Terminals : 76.2
• Cover seal
Connector Terminals : 79.7
60
• Removing the Terminal Block
1. Press down the 2. Pull out the
terminal block t e r m i n a l
levers. block.
Lower the lever.
Install the DIN Rail vertically
to the ground.
■Applicable DIN Rail (sold
separately):
PFP-100N (100 cm), PFP-50N
(50 cm)
⑥
Mount one End Plate to each
side of the EJ1 (PFP-M End
⑤
Plates are included with the
End Unit).
To mount an End Plate, hook
the bottom of the End Plate on
the bottom of the DIN Rail ⑤,
place the top of the End Plate
on the DIN Rail ⑥, and then
PFP-M
pull down on the End Plate.
Tighten the screw on the End
Plate to secure it.
• EJ1□-TC2□-C□□□ • EJ1C-EDUA-□FLK
OUT2
+
B1
A1
4-20/0-20mA DC
+
B2
OUT1
OUT4
A2
4-20/0-20mA DC
B3
OUT3
–
A3
COM
ch2
+
A
B4
A4
mA
– –
B
B5 EV2
A5
V TC ※
+
B
B6 EV1
+
A6
ch1
+
A
B7
A7
mA
–
B –
B8
A8 DO NOT USE
V TC
+
B
B9
+
A9
• EJ1C-EDUC-□FLK
Suitability for Use
OMRON shall not be responsible for conformity with any standards, codes, or regulations that
apply to the combination of the products in the customer's application or use of the product.
Take all necessary steps to determine the suitability of the product for the systems, machines,
and equipment with which it will be used.
Know and observe all prohibitions of use applicable to this product.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO
LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN
DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT IS
PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL
EQUIPMENT OR SYSTEM.
See also product catalog for Warranty and Limitation of Liability.
●Specifications
Power supply voltage 24 VDC 5A (at max. DC load)
Operating voltage range 85% to 110% of the rated voltage
Power consumption Basic Unit: TC4 5 W max. (at max. DC load)
Indication accuracy Thermocouple, Platinum Resistance Thermometer
Control output
2
) for power supply lines and a gage of AWG28 to AWG16 (equal to
2
). (The stripping length is 6 to 8 mm.)
Auxiliary output
Control method
Ambient temperature Operating
Ambient humidity
Inrush current (POWER) Individual Unit: 15 A max.
Weight
Degree of protection Rear case, End Unit case: IP20
Installation environment Overvoltage category II, pollution degree 2
Altitude
Event inputs
Max. heater current Single-phase, 100 A (AC)
Memory protection

■Display

●Names of Parts on Front Panel ●Operation Indicators
Operation indicator
PWR/1 (green)
RUN/2 (green)(See note 1.) Lit during operation.
ERR/3 (red)
ALM/4 (red)
COM1 (orange)
COM2 (orange)
SW1
COM3 (orange)
Note 1. Functions only on Modular Temperature Control Models (EJ1N).
Note 2. Functions only on Basic Units of Modular Temperature
Controller models (EJ1N).
Operation Indicators
SW2
PWR 1
RUN 2
ERR 3
ALM 4

■Specification Settings

●Switch Operation
• Check that the EJ1 is turned OFF before operating
the switches. Settings are valid only when power is
supplied.
• Set the switches with a small flat-blade screwdriver.
Do not set the switches midway between settings.
• SW1 is set to 1 and SW2 pins are all set to OFF in the
default settings.
●Setting the Unit Number
SW1 and SW2 can be used together to set the unit number to between 00 and 63.
The factory setting is unit number 01.
SW2
1 2 0 1 2 3 4
OFF OFF 00 01 02 03 04
ON OFF 16 17 18 19 20
OFF ON 32 33 34 35 36
ON ON 48 49 50 51 52
●Setting SW2
Description
SW2
Set to ON when using the Modbus communications protocol for port B.
Pin 3 OFF: The setting for port B communications protocol is used.
ON: Modbus is used.
Set the baud rate for port B.
4 = OFF, 5= OFF: Use port B baud rate setting (default: 9.6 kbps).
Pins
4 = ON, 5= OFF: 19.2 kbps
4 and 5
4 = OFF, 5= ON: 38.4 kbps
4 = ON, 5= ON: 115.2 kbps
Set to ON to display the output status on the operation indicators.
OFF: The operation status is displayed (PWR, RUN, ERR, and ALM).
Pin 6 ON: The output status is displayed (outputs 1, 2, 3, and 4).
Note: Normally keep this pin set to OFF so that the operation status
can be checked.
Pin 7 Set to ON when using the G3ZA.
Used when using an Advanced Unit and distributed installation.
Pin 8
(Refer to the User's Manual for details.)
Port A (Connector)
• Connecting to the G3ZA (EJ1□-TC□□-□□□□)
Both of these ports
B (+)
Port A
cannot be used at
1
the same time.
RS-485
2
A (–)
CN1
3
SUB2
4
SUB1
5
COM
B (+)
Port B
6
Do not use this port
RS-485
when using an
7 Advanced Unit.
A (–)
+
8 Connect the G3ZA
DC24V
harness to the CN1
9
–
Input
connector on the
power supply
bottom of the Unit.
1 B (+)
• Refer to the G3ZA Instruction Manual for wiring
Port A
2 A (–)
methods.
3
SUB2
4 COM
5
SUB1 OMRON ELECTRONICS LLC
6 COM
One Commerce Drive Schaumburg, IL 60173-5302 U.S.A
7 B (+)
Phone 1-847-843-7900
Port B
8 A (–)
Telephone Consultation 1-800-55-OMRON
FAX 1-847-843-7787
9 +
DC24V
OMRON EUROPE B.V.
10 –
Wegalaan 67-69 P.O. BOX 13 2130 AA Hoofddorp The
Netherlands
Phone 31-23-56-81-300
FAX 31-23-56-81-388
OMRON ASIA PACIFIC PTE LTD
83 Clemenceau Avenue, #11-01 UE Square, Singapore
239920
Phone 65-6-835-3011
FAX 65-6-835-2711
OMRON Corporation
Shiokoji Horikawa, Shimogyo-ku, Kyoto 600-8530 JAPAN
TC2 4 W max. (at max. DC load)
Input: (±0.5% of indication value or ±1˚C,
which is greater) ± 1 digit max.
Analog Input:
(±0.5% F/S) ±1 digit max.
CT Input:
(±5% F/S) ±1 digit max.
Voltage output: 12 VDC, 21 mA max.
Current output: 0 to 20 mA DC, 4 to 20 mA DC
load of 500 Ω max.
Transistor output: 30 VDC, 100 mA max.
Transistor output: 30 VDC, 50 mA max.
ON/OFF or advanced PID
–10 to 55˚C *
Storage –25 to 65˚C
(with no freezing or condensation)
* Ambient Temperature according to
UL61010C-1: –10 to 40˚C
Operating RH 25% to 85%
Storage RH 25% to 85%
End Unit: 70 g
Basic Unit: 180 g
Terminal section: IP00
(as per IEC 61010-1)
2,000 m max.
Output current: Approx. 4 mA
Contact input ON: 1 kΩ max.,
OFF:100 kΩ min.
No-contact input ON: Residual voltage of 1.5 V max.,
OFF: Leakage current of 0.1 mA max.
EEPROM (non-volatile memory)
(Number of write operations: 100,000)
Pin 6 of SW2 = OFF Pin 6 of SW2 = ON (See note 2.)
Lit when power is supplied. Lit when output 1 is ON.
Lit when output 2 is ON.
Flashes or lights when an error occurs. Lit when output 3 is ON.
Lights when an alarm occurs. Lit when output 4 is ON.
Flashes during communications on End Unit port A.
Flashes during communications on End Unit port B.
Flashes during communications with the G3ZA.
Operation Indicators
COM1
COM2
COM3
0
SW1
1 2 3 4 5 6 7 8
SW2
SW1
5 6 7 8 9 A B C D E F
05 06 07 08 09 10 11 12 13 14 15
21 22 23 24 25 26 27 28 29 30 31
37 38 39 40 41 42 43 44 45 46 47
53 54 55 56 57 58 59 60 61 62 63
G3ZA
READY
SD/RD
SW1
OCC
SW2
ERROR
Set SW2 to 3 (57.6
kbps).
Connect the black line
with a white stripe to
terminal 7 on the G3ZA
and the black line with
no stripe to terminal 8.
EJ1C-CBLA050
(sold separately)
Length of cable: 5m