multi-channel power controller g3zaocc sd/rd ready error occ sd/rd ready sw1 sw2 b (+) a (−) (see...

http://www.ia.omron.com/ 1(c)Copyright OMRON Corporation 2007 All Rights Reserved.

Multi-channel Power Controller

G3ZAOptimum Cycle Control for High-precision Control with Low Noise

• Smaller than a Normal Power Controller.

• Enables low-noise power control in combination with zero-cross SSRs.

• One Controller can control up to 8 SSRs.

• RS-485 communications to set manipulated variables and heater burnout detection.

• CE Marking

Note: Refer to Safety Precautions for All Power Controllers.®

FeaturesComparison between the G3ZA and Normal Power Controllers

Item Normal Power Controllers G3ZA

Connections

Control method Phase Control• Response is fast and high-precision temperature control

is possible.• Harmonics and noise are problems.

Optimum Cycle Control (High-precision Zero Cross Control)• Outputs are turned ON and OFF each half cycle.• Zero-cross control is performed. • Noise is suppressed while achieving high-speed response with

high-precision temperature control.

Powercontroller

Powercontroller

Powercontroller

Powercontroller

8 total

Programmable Controller

4 to 20 mA commands

8-channel Analog Output Unit

SW2

SW1

ERROR

OCC

SD/RD

READY

G3ZA-8 SSR SSR SSR SSR

8 total

Programmable Controller

RS-485 commands

Serial Communications Unit (RS-485)

Multi-channelPower Controller


G3ZA

Model Number Structure

■ Model Number Legend

Ordering Information

■ List of Models

Note: When using the heater burnout detection function, CTs must be ordered separately.

■ Accessories (Order Separately)

Specifications

■ Ratings

Note: CT inputs are provided only on Models with heater burnout detection.

No. Meaning Code Specifications No. Meaning Code Specifications

1 No. of control points 4 4 channels 4 Load power supply voltage 2 100 to 240 VAC

8 8 channels 4 400 to 480 VAC

2 Control method None Optimum cycle control 5 Communications specifications 03 RS-485

3 Current transformer input H Yes 6 Communications protocol FLK CompoWay/F

A None 7 International standards UTU Approved by TÜV/UL/CSA.

1 2 3 4

G3ZA- @ @ @ @ @ - @ - @5 6 7

Name Number of control channels

Heater burnout detection

Load power supply voltage

Model

Multi-channel Power Controller

4 Supported 100 to 240 VAC G3ZA-4H203-FLK-UTU

400 to 480 VAC G3ZA-4H403-FLK-UTU

8 Not supported 100 to 240 VAC G3ZA-8A203-FLK-UTU

400 to 480 VAC G3ZA-8A403-FLK-UTU

Name Hole diameter Model

Current Transformer (CT)

5.8 dia. E54-CT1

12.0 dia. E54-CT3

Name Model

DIN Track PFP-100N

PFP-50N

End Plates (stoppers) PFP-M

Item Load power supplyvoltage range

100 to 240 VAC 400 to 480 VAC

Power supply voltage 100 to 240 VAC (50/60 Hz)

Operating voltage range 85 to 264 VAC

Power consumption 16 VA max.

Load power supply voltage 100 to 240 VAC 400 to 480 VAC

Load power supply voltage range 75 to 264 VAC 340 to 528 VAC

Manipulated variable input 0.0% to 100.0% (via RS-485 communications)

Current transformer input (See note.) Single-phase AC, 0 to 50 A (primary current of CT)

Trigger output One voltage output for each channel, 12 VDC 15%, Max. load current: 21 mA (with built-in short-circuit protection circuit)

Alarm output NPN open collector, one outputMax. applicable voltage: 30 VDC, Max. load current: 50 mAResidual voltage: 1.5 V max., Leakage current: 0.4 mA max.

Indications LED indicators

Ambient operating temperature 10 to 55 C (with no icing or condensation)

Ambient operating humidity 25% to 85%

Storage temperature 25 to 65 C (with no icing or condensation)

Elevation 2,000 m max.

Accessories Instruction Sheet


G3ZA■ Performance

■ Communications Specifications

■ Current Transformer Specifications (Order Separately)

Note: The maximum continuous current of the G3ZA is 50 A.

Optimum Cycle Control • Optimum cycle control is performed by driving SSRs according to

load power detection and trigger signals. (Zero-cross SSRs are used.)

• Noise is suppressed while ensure high-speed response by turning outputs ON and OFF each half cycle to achieve high-precision temperature control.

Current indication accuracy 3 A (for Models with heater burnout detection)

Insulation resistance 100 M min. (at 500 VDC) between primary and secondary

Dielectric strength 2,000 VAC, 50/60 Hz for 1 min between primary and secondary

Vibration resistance Vibration frequency: 10 to 55 Hz, acceleration: 50 m/s2 in X, Y, and Z directions

Shock resistance 300 m/s2 three times each in six directions along three axes

Weight Approx. 200 g (including terminal cover)

Degree of protection IP20

Memory protection EEPROM (non-volatile memory) (number of writes: 100,000)

Installation environment Overvoltage category III, pollution degree 2 (according to IEC 60664-1)

Approved standards UL508 (Listing), CSA22.2 No. 14EN50178EN61000-6-4 (EN55011: 1998, A1: 1999 Class A, Group 1) EN61000-6-2: 2001

Transmission line connections Multipoint

Communications method RS-485

Max. transmission distance 500 m

No. of nodes 31 (via multidrop connections)

Synchronization method Stop-start synchronization

Communications baud rate 9.6, 19.2, 38.4 or 57.6 kbps, Default: 9.6 kbps

Transmission code ASCII

Communications data length 7 or 8 bits, Default: 7

Communications stop bits 1 or 2 bits, Default: 2

Communications parity Vertical parity: None, even, or odd, Default: Even

Flow control None

Item Specification

Model number E54-CT1 E54-CT3

Max. continuous heater current 50 A 120 A (See note.)

Dielectric strength 1,000 VAC for 1 min

Vibration resistance 98 m/s2, 50 Hz

Weight Approx. 11.5 g Approx. 50 g

Accessories None Connection terminals (2) Plugs (2)

1/5th ON (20%)

Manipulatedvariable: 20%


G3ZA

Connections

■ Terminal Arrangement

Note: 1. Applicable CTs: E54-CT1 and E54-CT32. Use C-Grid SL connectors from Molex Inc.

Operation Indicators

Setting Switches• Always turn OFF the power supply before setting the switches. The

switch settings are read only when the power supply is turned ON. • Use a flat-blade screwdriver to set the switches and be sure not to

leave a switch set between two settings.

Communications Unit NumberSet a communications unit number on SW1 so that the host system can identify the Controller.

Note: A unique unit number must be set for each node (Controller) on the same communications line. Do not set the same unit number for more than one node.

Communications Baud RateSet the baud rate for communicating with the host system on SW2.

+

+

+

+

−

+

+

+−

+

−

+

+

+−

+

−

Trigger output12 VDC, 21 mA




Models with 8 Channels (Control Points), No CT Inputs, and No Heater Burnout Detection


Models with 4 Channels (Control Points), CT Inputs, and Heater Burnout Detection


Alarm output30 VDC, 50 mA

Power supply voltage100 to 240 VAC50/60 Hz

Load power supply voltage100 to 240 VAC50/60 Hz

Models with Load Power Supply Voltage of 100 to 240 V

Power supply voltage100 to 240 VAC50/60 Hz

Models with Load Power Supply Voltage of 400 to 480 V

Load power supply voltage400 to 480 VAC50/60 Hz

19 20 21 22 23 24CH5 CH6 COM CH7 CH8 COM CH1 CH2 COM CH3 CH4 COM

13 14 15 16 17 18CH1 CH2 COM CH3 CH4 COM CH1 CH2 COM CH3 CH4 COM

19 20 21 22 23 24

13 14 15 16 17 18

CT

CT

CT

CT

7

B (+) A (−)RS-485

8 9 11

1 2 4 6

7

RS-485

8

1 2 4 6

B

A

SW2

SW1

ERROR

OCC

SD/RD

READY

ERROR

OCCSD/RD

READY SW1

SW2

−

B (+) A (−)

(See note 1.) (See note 1.)

(See note 1.) (See note 1.)

Alarm output connector (See note 2.)(only models with load power supply voltage of 400 to 480 V)

Note: Connect the power supply (100 to 240 VAC) for the G3ZA across terminals 1 and 2 and the load power supply for the SSR loads across terminals 4 and 6.

Note: Connect the power supply (100 to 240 VAC) for the G3ZA across terminals 1 and 2 and the load power supply for the SSR loads across terminals 4 and 6.

30 VDC, 50 mA

Alarm output







C-Grid SL HousingModel: 51030-6303

C-Grid SL Housing (press-fit)Model: 52109-0660

Operation indicator Meaning

READY (Green) Lit while power is being supplied.

SD/RD (Orange) Lit while communicating with the host.

OCC (Orange) Lit while a control output is ON.

ERROR (Red) Lights or flashes when an error is detected.

SW1 SW2

SW1 0 1 2 3 4 5 6 7 8 9 A B C D E F

Unit No. 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15

▲Default

SW2 0 1 2 3 4 to F

Baud rate 9.6 19.2 38.4 57.6 Do not set.

▲Default


G3ZA■ Connection Configuration

Note: Connect a power supply with the same phase as the SSRs to the load power supply terminals on the G3ZA.

DimensionsNote: All units are in millimeters unless otherwise indicated.

■ Multi-channel Power Controllers

Host

G3ZA

Load

(Example: Heater)

CTLoad power supply

Power supply

RS-485

SSR

Trigger signal

Mounting Hole Dimensions(For Direct Mounting)

4.6 dia.

111 max.(TYP. 110)

7 × 5 = 35 Two, 4.2 dia. or M4

SW2

SW1

ERROR

OCC

SD/RD

READY

915.3

9

9

76 max.63

84

5.6

43

35±0.3

45 max.

R 2.3

R 4.5

35±0.3

84±0.3

G3ZA-4H203-FLK-UTUG3ZA-4H403-FLK-UTUG3ZA-8A203-FLK-UTUG3ZA-8A403-FLK-UTU


G3ZA■ Accessories (Order Separately)

E54-CT1


30

21

155.8 dia.

25 3

40

10.5

2.8

7.5

10

Two, 3.5 dia.

E54-CT3


40 × 40

30

12 dia.

9

2.36 dia.

15

30

Two, M3 (depth: 4)

Approx. 3 dia.

18

(22)

Approx. 6 dia.

PlugContactor

Lead

E54-CT3 Accessories

• Contactors

• Plugs

PFP-100NPFP-50N

DIN Track

4.5

15 25 2510 10

1,000 (500)*

25 25 15 (5)*

35±0.3

7.3±0.15

27±0.15

1

* Dimension in parentheses are for the PFP-50N.

PFP-M

End Plate (Stopper)

50

11.5

10

M4 x 8pan-headscrew

M4 spring washer

4.81.3

1.8

1

10

6.21.8

35.5 35.3


G3ZA■ Precautions for Correct UseWiringUse M3 crimp terminals.

Use wires that withstand a minimum of 70 C.

DIN TrackSecure the DIN Track with screws in at least three locations.

DIN Track: PFP-50N (50 cm)/PFP-100N (100 cm)

Mounting the G3ZAMount the G3ZA as shown in the diagram. First, pull down the DIN Track mounting hook (1) and hook the top of the G3ZA on the DIN Track (2). Then press the G3ZA onto the DIN Track far enough so that it can be locked in place (3) and push the DIN Track mounting hook up to lock the G3ZA in place (4).

Removing the G3ZAUse a flat-blade screwdriver to pull down the DIN Track mounting hook (1) and then pull out on the bottom of the G3ZA (2).

Mounting End PlatesBe sure to mount an End Plate on each side of the G3ZA so that it does not slide on the DIN Track.

To mount an End Plate, hook the bottom of the End Plate on the bottom of the DIN Track (1), place the top of the End Plate on the DIN Track (2), and then pull down on the End Plate. Tighten the screw on the End Plate to secure it.

Note: Always mount one End Plate on each side of the G3ZA.

Installation ExampleWhen installing the SSRs next to the G3ZA, provide sufficient space between the G3ZA and SSRs, as shown in the following diagram.

Reference example: When applying 10 A to the G3PA-210B-VD (a manipulated variable of 100%), separate the SSRs from the G3ZA by at least 20 mm.

Do not touch the G3ZA while power is being supplied.

Mounting with Screws

Mounting Dimensions (Unit: mm)

5.8 mm max.

5.8 mm max.

(4)

(3)

(2)

(1)

(1)

(2)

ΣΩ2

ΣΩ1

ΕΡΡΟΡ

ΟΧΧ

ΣΔ/ΡΔ

ΡΕΑΔΨ

(1)

(2)

End Plate End Plate

SW2

SW1

ERROR

OCC

SD/RD

READY

20 mm min.

SSR G3ZA

20 mm min.

SSR

35±0.3

84±0.3

Two, 4.2 dia.or M4

In the interest of product improvement, specifications are subject to change without notice.

ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.

To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.

http://www.ia.omron.com/ C-1(c)Copyright OMRON Corporation 2007 All Rights Reserved.

Safety Precautions for All Power ControllersFor the precautions for individual products, refer to the Precautions for that product.

!CAUTION

■ Precautions for Safe UseOMRON constantly strives to improve quality and reliability. Power Controllers, however, use semiconductors, and semiconductors may commonly malfunction or fail. In particular, it may not be possible to ensure safety if the Power Controllers are used outside the rated ranges. Therefore, always use the Power Controllers within the ratings. When using a Power Controller, always design the system to ensure safety and prevent human accidents, fires, and social harm in the event of Power Controller failure. System design must include measures such as system redundancy, measures to prevent fires from spreading, and designs to prevent malfunction.

1. Do not apply voltage or current in excess of the ratings to the terminals of the Power Controller. Doing so may result in failure or burn damage.

2. Do not use the Power Controller with loose terminal screws. Doing so may result in burn damage due to abnormal heat produced by the terminals.

3. Do not block the movement of the air surrounding the Power Controller or heat sink. Abnormal heating of the Power Controller may result in shorting failures of the elements or burn damage.

4. Follow the Precautions for Correct Use when performing wiring or tightening the screws. If the Power Controller is used with the wiring or screw tightening performed improperly, burn damage may occur due to abnormal heat generated when the power is being applied.

■ Precautions for Correct UseFor details, refer to Technical Guide for Power Controllers.Do not touch the Power Controller or the heat sink while

the power is being supplied or immediately after the power supply has been turned OFF. Touching the Power Controller or heat sink while it is hot may result in burns.

Do not touch the Power Controller LOAD terminals immediately after the power has been turned OFF. Shock may result due to the electrical charge stored in the built-in snubber circuit.

Always attach the cover terminal if the Power Controller has one. Contact with current-carrying parts may result in shock.

Always turn OFF the power supply before performing wiring. Not doing so may result in shock.

Do not allow short-circuit current to flow to the load side of the Power Controller. The Power Controller may explode if short-circuit current flows.



Precautions for Correct Use of Power Controllers

Load• Only resistive loads can be connected to the G3PX.• Transformer Loads

The primary side of a transformer is an inductive load. Therefore, do not control it directly.

MountingThe Three-phase, 60-A G3PX weighs 5 kg. Dropping the G3PX when it is being mounted may result in injuries.

Mounting Procedure

Note: In the case of flat mounting, the 30% derating of the load current is required.

1. Installation Space between Power Controllers

Panel Mounting Conditions

2. Relationship between Power Controllers and Ducts (or Other Airflow Obstructions)

3. Ventilation

Note: 1. If the air inlet or air outlet has a filter, clean the filter regularly to prevent it from clogging and ensure an efficient flow of air.

2. Do not locate any objects around the air inlet or air outlet; otherwise, the objects may obstruct the proper ventilation of the control panel.

3. A heat exchanger, if used, should be located in front of the G3PX to ensure the efficiency of the heat exchanger.

• Please reduce the ambient temperature of G3PX.

Note: The rated load current of the G3PX is measured at an ambient temperature of 25 or 40°C.

• The G3PX uses a semiconductor to switch the load. This causes the temperature inside the control panel to increase due to heating resulting from the passage of electrical current through the load. To restrict heating, attach a fan to the ventilation outlet or air inlet of the control panel to ventilate the panel. This will reduce the ambient temperature of the G3PX and thus increase reliability. (Generally, each 10°C reduction in temperature will double the expected life.)

Example: For 10 Controllers with load currents of 20 A,0.31 10 = 3.1Thus, 4 fans would be required.

Note: 1. Size of fans: 92 mm2, Air volume: 0.7 m3/min, Ambient temperature of control panel: 30°C

2. If there are other instruments that generate heat in the control panel other than the G3PX, additional ventilation will be required.

Wiring• Make sure that the lead wires are thick enough according to the

current.• Be sure to turn off power to the G3PX when wiring. The G3PX has

current leakage although the G3PX is turned off if the power supply is connected to the G3PX, which may give an electric shock.

• Do not wire power lines or high-tension lines along with the lines of the G3PX in the same conduit, otherwise the G3PX may be damaged or malfunction due to induction. Be sure to wire the lines of the G3PX separated from power lines or high-tension lines or laid in an exclusive, shielded conduit.

Tightening TorqueApply the following tightening torque.Output terminal:20-A model: 1.47 N·m

40-A model: 2.45 N·m60-A model: 4.12 N·m

Terminal block: Single-phase model: 0.98 N·mThree-phase model: 0.6 N·m

Be sure to protect the terminals with the protective cover after wiring.

Wiring for Error DetectionIf a contactor is employed and operated with the relay output signal of the G3PX for error detection, make sure that the G3PX is closer to the power supply than the contactor.

Vertical Mounting Horizontal Mounting

60 mm min.

50 mm min.30 mm min.

Duct or airflow obstruction

Mounting Direction Between Ducts and G3PX

Vertical Separation

Vertical

G3PX

10 mm min.

Height of ducts (or other airflow obstructions)

Countermeasure 1 Countermeasure 2

G3PX

Vertical

G3PX

Mou

ntin

g su

rfac

e

Mou

ntin

g su

rfac

e

130 mm

130 mm AirflowG3PX

Metalbase

Duct (or other airflow obstruction)

Duct (or other airflow obstruction)

Do not surround the Power Controller with ducts; otherwise, the heat radiation of the Power Controller will be adversely affected.

Use short ducts. If the ducts cannot be shortened, place the G3PX on a metal base so that it is not surrounded by the ducts.

65 mm max. (A height of no more than half the G3PX's height is recommended.)

Mou

ntin

g su

rfac

e

Load current of G3PX (A) 20 A 40 A 60 A

Required number of fans per G3PX 0.31 0.62 0.93

Be aware of the airflow.

Air inlet

Ventilation outlet (axial fan)

Duct

G3PX

G3PX

G3PX


Instruments

The instruments are used for displaying root-mean-square voltage and current values of the AC circuitry.

Operation MonitoringThe level indicator just indicates the phase of the load and it is not highly precise.

Duty Setting• There is a decrease in ramp if the internal DUTY adjuster is turned

counterclockwise.

• If the External DUTY Adjuster is used, set the Internal DUTY Adjuster to 100%.

CT Unit• The CT Unit varies with the G3PX-series model. Use the following

CT Units in combination with the G3PX models.G3PX-2@0EH Series: G32X-CT@@G3PX-2@0EHN Series: G32X-CT@@HNG3PX-2@0EC Series: G32X-CT@@CG3PX-2@0D@@ Series: G32X-CT@@C

• If any of the following models is used and the actual load current is 50% of the maximum rated load current or lower, increase the number of turns of the wire around the CT Unit.G3PX-20EHN Series (multi-heater open circuit detective models)G3PX-20EC Series (constant current)Three-phase ModelsFor example, make two turns if the actual load current is 50% of the maximum rated load current and four turns if the actual load current is 25% of the maximum rated load current.If the G3PX is a constant current model, do not increase the number of turns of the wire around the CT Unit excessively, otherwise the overcurrent detective function may operate by mistake.

External DUTY AdjusterUse the External DUTY Adjuster with a resistance of 2 k or that with a resistance of 3 k according to the G3PX-series model in use.

Refer to the following combinations.

G3PX-2@EH Series: G32X-V3K (3 k )G3PX-2@0EUN Series:G32X-V2K (2 k )G3PX-2@0EHN Series:G32X-V2K (2 k )G3PX-2@0EC Series: G32X-V2K (2 k )G3PX-2@0D@@: G32X-V2K (2 k )

Base-up Function

EUN, DU, and DH ModelsThe base-up output of the G3PX with a temperature controller output of 0 mA (i.e., the temperature controller is turned off) and that of the G3PX with a temperature controller output of 4 mA are different from each other.

Power Device CartridgeDo not apply power to the G3PX with the Power Device Cartridge dismounted.

Heater Open Circuit Detection

EH and EHN ModelsThe heater open circuit detective function is not available for detecting the phase less than the following.

DH and DC ModelsA voltage output of 70% min. is required for heater burnout detection.

Power Supply

Single-phase Models OnlyDo not apply 200 V to the 100-V terminals, otherwise the thermal fuse of the built-in transformer will be blown and the G3PX will not operate.

Single-phase Power Supply

(Three-phase Models Only)The single-phase power supply circuit shown in the following diagram cannot be used.

Instrument Remarks

Thermal type Available

Digital type displaying root-mean-square values

Moving-iron type

Rectifier type Not available (not precise enough)Multimeter

Digital multimeter

100% 10%

G3PX-20EH Series: π/8 or lessG3PX-20EHN Series: Approx. π/6 or less

Phase not detectable

200 VACSingle-phase

G3PXThree-phaseModels


Others• It is not possible to use three single-phase models for three-phase

load control.Always use a three-phase model for control of three-phase loads.

• If a three-phase power supply is used for single-phase models operating in parallel, make sure that the two phases supplied to all the single-phase models are the same. Not doing so may result in burnout detection, overcurrent detection, or alarm malfunction. Consult with your OMRON representative if such use is required.

• With three-phase models, the output voltage may become unstable if the balance of a three-phase load is lost. Therefore, use the power controllers with a load current balance ratio of 0.9 or better.

• For three-phase models, do not incorrectly wire the R, S, and T phases of the main circuit wiring. Doing so will cause abnormal operation. After connecting the power controllers, confirm proper operation before using the system.

DH and DU ModelsThe detection sensitivity will differ. Correctly set the star/delta selector.

G3PX G3PXG3PX

R phase

S phase

T phase

G3PX G3PXG3PX

R phase

S phase

T phase

The 20-A and 40-A models use a triac on output elements. Fundamentally, triacs are easily influenced by power supply distortion, in which case the output may become unstable. (The 60-A models use a thyristor, and so are virtually not influenced by power supply distortion.) Power supply distortion tends to occur if the power supply capacity is insufficient when multiple power controllers are used. In particular, if they are used with three-phase open-delta wiring, power supply distortion may occur across the phases, resulting in malfunctions. If distortion is a problem, use the power controllers together on one phase as shown in the diagram above.

Explanation

Set the output voltage to approximately 50% and check that the voltage is almost the same between the phases. Variation will occur in the output voltage if the phase sequence is incorrect.

Checking Operation

2007.3

OMRON CorporationIndustrial Automation Company

http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2007 All Rights Reserved.


Read and Understand This Catalog

Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments.

Warranty and Limitations of LiabilityWARRANTYOMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specifi ed) from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.

LIMITATIONS OF LIABILITYOMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS, OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.

In no event shall responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.

IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

Application ConsiderationsSUITABILITY FOR USEOMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the product. At the customer's request, OMRON will provide applicable third party certifi cation documents identifying ratings and limitations of use that apply to the products. This information by itself is not suffi cient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use.

The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:

• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.

• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations.

• Systems, machines, and equipment that could present a risk to life or property.

Please know and observe all prohibitions of use applicable to the products.

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.

DisclaimersCHANGE IN SPECIFICATIONSProduct specifi cations and accessories may be changed at any time based on improvements and other reasons.

It is our practice to change model numbers when published ratings or features are changed, or when signifi cant construction changes are made. However, some specifi cations of the product may be changed without any notice. When in doubt, special model numbers may be assigned to fi x or establish key specifi cations for your application on your request. Please consult with your OMRON representative at any time to confi rm actual specifi cations of purchased product.

DIMENSIONS AND WEIGHTSDimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

ERRORS AND OMISSIONSThe information in this catalog has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.

PERFORMANCE DATA Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability.

PROGRAMMABLE PRODUCTSOMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.

COPYRIGHT AND COPY PERMISSIONThis catalog shall not be copied for sales or promotions without permission.

This catalog is protected by copyright and is intended solely for use in conjunction with the product. Please notify us before copying or reproducing this catalog in any manner, for any other purpose. If copying or transmitting this catalog to another, please copy or transmit it in its entirety.

multi-channel power controller g3zaocc sd/rd ready error occ sd/rd ready sw1 sw2 b (+) a (−) (see...

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