Omron G3PX User manual

Power Controllers G3PX 67

Power Controllers

G3PX

•Refer to Warranty and Application Considerations (page 1), Safety

Precautions (page 4), and Technical and Safety Information (page 6).

•Refer to Heater Control Types and G3PX Control Methods (page 23).

■Single-phase Models

EUN Series

AC Power Controllers with Phase-control

System Allow Precise Temperature Control

Models with Base-up and Soft-start

Functions

EH Series

Phase Control System Makes It Possible to

Detect Single Heater Open Circuit (EH

Series) and Multiple Heater Open Circuits

(EHN Series)

EC Series

Optimum Devices for Controlling Input

Power for Pure Metal Heater, and

Incorporating Overcurrent Detecting and

Single Heater Open Circuit Detecting

Functions

• OMRON’suniquedesignandcarefully-selectedmaterialsmade

it possible to produce a compact and lightweight Power

Controller.

• Replaceable, easy-to-install Power Device Cartridge assures

ease of maintenance.

• Detecting component failures and operating errors.

• Certified by UL and CSA.

Model Number Structure

■Model Number Legend

1. Basic Model Name

G3PX: Power Controller

2. Rated Load Power Supply Voltage

2: 100/110 VAC and 200/230 VAC

3. Rated Load Current

20: 20 A

40: 40 A

60: 60 A

4. Number of Phases

E: Single

5. Functions

UN: Simple models

H: Single heater open circuit detection function

HN: Multiple heater open circuit detection function

C: Constant-current function

6. CT Unit Type

Note: Refer to CT Unit on page 70.

12 3 4 5 6

G3PX-@@@@-@

68 Power Controllers G3PX

G3PX Cartridge

1. Basic Model Type

G32X: Accessory for G3PX

2. Basic Model Name

A: Power Device Cartridge

3. Rated Load Current

20: 20 A

40: 40 A

60: 60 A

CT Unit

1. Basic Model Type

G32X: Accessory for G3PX

2. Basic Model Name

CT: CT Unit

3. Length of Lead Wires

03: 30 cm

10: 100 cm

4. Series

Blank: Series for single heater open circuit detection

HN: Series for multiple heater open circuit detection

C: Series for constant current

Variable Resistor

1. Basic Model Type

G32X: Accessory for G3PX

2. Basic Model Name

V3K: 3-kΩVariable Resistor

V2K: 2-kΩVariable Resistor

G32X-@@

1234

G32X-@@@

G32X-@

Power Controllers G3PX 69

Ordering Information

■List of Models

EUN Series

Note: 1. The base-up output with a 0-mA temperature controller output (i.e. the temperature controller is OFF) differs from that with a 4-mA

temperature controller output. Refer the Characteristics data on page 73.

2. When ordering, make sure that the rated voltage is 200/230 VAC. For a rated voltage of 200/220 VAC, the G3PX is available.

EH Series

Note: 1. EH- and EHN-series models are provided with a CT incorporating 30- or 100-cm-long lead wires and Power Device Cartridge. When

ordering, specify the length of the lead wires by adding a code to the model number as shown below.

G3PX-2@0EH-CT03: CT with 30-cm-long lead wires

G3PX-2@0EH-CT10: CT with 100-cm-long lead wires

2. Adjusts the multiple heater open circuit detection sensitivity of EHN-series models. Enables single heater open circuit detection in control

of a maximum of five heaters.

3. When ordering, make sure that the rated voltage is 200/230 VAC. For a rated voltage of 200/220 VAC, the G3PX is available.

EC Series

Note: 1. EC-series models are provided with a CT Unit with lead wires (30- or 100- cm in length). When ordering, specify the length of the lead

wires by adding a code to the model number as shown below.

G3PX-2@0EC-CT03: CT with 30-cm-long lead wires

G3PX-2@0EC-CT10: CT with 100-cm-long lead wires

2. When ordering, make sure that the rated voltage is 200/230 VAC. For a rated voltage of 200/220 VAC, the G3PX is available.

Phase Applicable load Level indicator Base-up function

(See note 1.) Soft-start time Carry

current Rated voltage Model

Single Resistive load

Heater Yes Yes Approx. 0.5 to 10 s 20 A 100/110 VAC

200/230 VAC

(See note 2.)

G3PX-220EUN

40 A G3PX-240EUN

60 A G3PX-260EUN

Phase Applicable load Level indicator Single heater

open circuit

detection

Multiple heater

open circuit

detection

Carry

current Rated voltage Model

(See note 1.)

Single Resistive load

Heater Yes Yes No 20 A 100/110 VAC

200/230 VAC

(See note 3.)

G3PX-220EH-CT03

G3PX-220EH-CT10

40 A G3PX-240EH-CT03

G3PX-240EH-CT10

60 A G3PX-260EH-CT03

G3PX-260EH-CT10

Yes (See note 2.) Yes 20 A G3PX-220EHN-CT03

G3PX-220EHN-CT10

40 A G3PX-240EHN-CT03

G3PX-240EHN-CT10

60 A G3PX-260EHN-CT03

G3PX-260EHN-CT10

Phase Applicable

load Level indicator Constant-current

function Single heater

open circuit

detection

Carry

current Rated voltage Model

(See note 1.)

Single Resistive load

Heater Yes Yes Yes 20 A 100/110 VAC

200/230 VAC

(See note 2.)

G3PX-220EC-CT03

G3PX-220EC-CT10

40 A G3PX-240EC-CT03

G3PX-240EC-CT10

60 A G3PX-260EC-CT03

G3PX-260EC-CT10

70 Power Controllers G3PX

■Accessories (Order Separately)

CT Unit

Power Device Cartridge

Note: The G32X-A is a dedicated Power Device Cartridge for the G3PX.

Refer to Replacement Parts on page 81.

Specifications

■Ratings (at an Ambient Temperature of 25°C)

Control

Note: 1. 50/60 Hz (no selector required) (EUN Series)

Terminals 18 and 19 of EHN/EC-series models must be open when the supply frequency is 50 Hz. These terminals must be short-

circuited when the supply frequency is 60 Hz.

2. Use the G32X-V2K 2-kΩVariable Resistor for external main setting on EUN, EC, and EHN (G32X-V3K 3-kΩfor EN-series models).

3. Input 4 to 20 mA or 1 to 5 VDC linear input to the 4 to 20 mA current input terminal.

Output

Name Length of lead wires Solderless terminals Applicable models Model

CT Unit 30 cm Yes G3PX-2@@EH G32X-CT03

100 cm G32X-CT10

30 cm G3PX-2@@EHN G32X-CT03HN

100 cm G32X-CT10HN

30 cm G3PX-2@@EC G32X-CT03C

100 cm G32X-CT10C

Name Carry current Applicable models Model

Power Device Cartridge 20 A G3PX-220E@@ G32X-A20

40 A G3PX-240E@@ G32X-A40

60 A G3PX-260E@@ G32X-A60

Item G3PX-

220EUN/

240EUN/

260EUN

G3PX-

220EH/

240EH/

260EH

G3PX-

220EHN/

240EHN/

260EHN

G3PX-

220EC/

240EC/

260EC

Rated voltage 100/110, 200/230 VAC

Frequency 50/60 Hz (See note 1.)

Input

signal for

control

External main

setting

(See note 2.)

2 kΩ(type B, 2 W min.) 3 kΩ(type B, 2 W min.) 2 kΩ(type B, 2 W min.)

Current input 4 to 20 mA (at 1 to 5 VDC) (Input impedance: 250Ω) (See note 3.)

Voltage ON/

OFF input 5 to 24 VDC (Input impedance: approx. 20 kΩ)

External duty

setting 3 kΩ(type B)

Relay output for alarm --- SPDT: 8 A at 250 VAC/30 VDC

Model Applicable load

Rated load voltage Load current Inrush current Number of phases

G3PX-220E@

G3PX-220E@N100/110, 200/230 VAC (50/

60 Hz) 1 to 20 A (See note.) 220 A (60 Hz, 1 cycle) Single

G3PX-240E@

G3PX-240E@N1 to 40 A (See note.) 440 A (60 Hz, 1 cycle)

G3PX-260E@

G3PX-260E@N1 to 60 A (See note.) 440 A (60 Hz, 1 cycle)

Power Controllers G3PX 71

Note: The G3PX-2@@EHN (model with multiple heater open circuit detecting function) and G3PX-2@@EC (constant-current model) require 20%

min. of the rated current to detect a short mode failure. EC-series models detect an open mode failure if the load current has dropped to

80% of the rated value. A short mode failure will be detected if the current has risen to 20% of the rated value.

■Characteristics

EU/EH Series

Note: 1. Duty setting does not complete to the OFF state (i.e. 10% remains).

2. The start-up time is factory-set to 1 s on the EH Series, approx. 0.5 s on the EHN and EC Series.

3. This is the initial start-up time with a 100% duty setting.

4. Detection is effective when the set current is reduced by 20% or more.

5. The minimum set value in the G3PX-220EHN is 6 A. If a lower value is required, increase the number of wiring turns around the CT.

Item G3PX-220EUN/

240EUN/260EUN G3PX-220EH/240EH/260EH G3PX-220EHN/

240EHN/260EHN

Operating voltage range ±10%

Operating frequency

range ±1 Hz

Output voltageadjustable

range 0% to 95%

Internal duty setting

range 0% to 100% 10% to 100% (See note 1.) 0% to 100%

External duty setting

range 0% to 100% 10% to 100% (See note 1.) 0% to 100%

Start-up time

(See note 2.) Approx. 0.5 to 10 s

(See note 3.) Approx. 0.1 to 1 s

(See note 3.) Approx. 0.5 to 10 s

(See note 3.)

Base-up range 0% to 90% ---

Multiple heater open cir-

cuit detection --- 20% max. (See note 4.)

Min. phase detection --- Approx. 1/6 π

Min. phase setting --- --- Approx. 1/6 π

Min. load current for ON

error detecting --- 1 A 30% max. of rated current

(See note 5.)

Abnormality detection

time --- 0.1 s max. 1 s max.

Voltage drop with output

ON 1.6 V max. (RMS)

Leakage current 10 mA max. at 100/110 VAC, 20 mA max. at 200/230 VAC

Insulation resistance 100 MΩmin. (at 500 VDC)

Dielectric strength 2,000 VAC, 50/60 Hz for 1 min.

Vibration resistance Malfunction: 10 to 55 to 10 Hz, 100 m/s2

Shock resistance Malfunction: 300 m/s2

Ambient temperature Operating: –25°C to 65°C (with no icing or condensation)

Storage: –10°C to 55°C (with no icing or condensation)

Ambient humidity Operating: 45% to 85%

Weight G3PX-220EUN: approx. 1.1 kg

G3PX-240EUN: approx. 1.4 kg

G3PX-260EUN: approx. 1.7 kg

G3PX-220EH: approx. 1.1 kg

G3PX-240EH: approx. 1.4 kg

G3PX-260EH: approx. 1.7 kg

G3PX-220EHN: approx. 1.2 kg

G3PX-240EHN: approx. 1.5 kg

G3PX-260EHN: approx. 1.8 kg

72 Power Controllers G3PX

EC Series

Item G3PX-220EC G3PX-240EC G3PX-260EC

Operating voltage range ±10%

Operating frequency range ±1 Hz

Output voltage adjustable range 0% to 95%

Internal duty setting range 0% to 100%

External duty setting range 0% to 100%

Start-up time Approx. 0.5 to 10 s

Min. load current for ON error

detecting 20% max. of rated current

Current limit range 0% to 100%

Excess current detection Peak current of 110 A within

1cycle Peak current of 220 A within

1cycle Peak current of 330 A within

1 cycle

Constant current ±3% max. with 10-time increment of load value

±3% max. with ±10% change of voltage

Abnormality detection time 1 s max.

Voltage drop with output ON 1.6 V max. (RMS)

Leakage current 10 mA max. at 100/110 VAC, 20 mA max. at 200/230 VAC

Insulation resistance 100 MΩmin. (at 500 VDC)

Dielectric strength 2,000 VAC, 50/60 Hz for 1 min.

Vibration resistance Malfunction: 10 to 55 to 10 Hz, 100 m/s2

Shock resistance Malfunction: 300 m/s2

Ambient temperature Operating: –25°C to 65°C (with no icing or condensation)

Storage: –10°C to 55°C (with no icing or condensation)

Ambient humidity Operating: 45% to 85%

Weight G3PX-220EC: approx. 1.1 kg

G3PX-240EC: approx. 1.4 kg

G3PX-260EC: approx. 1.7 kg

Power Controllers G3PX 73

Engineering Data

The following data is for an ambient temperature of 25°C.

Output Characteristics Duty Setting

Base-up Characteristics

Load Current vs. Ambient Temperature

100%

60%

40%

20%

G3PX-EUN/EH/EHN Models

Output voltage (%)

ut current

(

)

G3PX-EC Models G3PX-EUN/EH/EHN Models

Output voltage (%)

ut current

(

)

100%

60%

40%

20%

Output voltage (%)

ut current

(

)

G3PX-2@0EUN Models

Output voltage (%)

ut current

(

)

Load current (A)

G3PX-220E@Models

Ambient temperature (°C)

G3PX-240E@Models G3PX-260E@Models

Ambient temperature (°C) Ambient temperature (°C)

Load current (A)

74 Power Controllers G3PX

One Cycle Surge Current: Non-repetitive

Inrush current (A.Peak)

G3PX-220E@Models

Energized time (ms)

G3PX-240E@Models G3PX-260E@Models

Energized time (ms) Energized time (ms)

Note: The above are possible on condition that the G3PX is in non-repetitive operation. If the G3PX is in repetitive operation,

reduce the applied current to half.

Power Controllers G3PX 75

Nomenclature

G3PX-2@0EUN

POWER indicator

BASE-UP adjuster

Level indicator

G3PX-2@0EH-CT@@

Level indicator

POWER indicator

CT Unit

G3PX-2@0EHN-CT@@

POWER indicator

Level indicator RESET switch

G3PX-2@0EC-CT@@

POWER indicator

CT Unit

Level indicator

Single-function Model

(EUN-series Model) Multiple Heater Open Circuit

Detection (EHN-series Model)

TIME adjuster

(for Extended

soft-start time)

DUTY adjuster

(for internal

slope setting) Power Device

Cartridge

RUN/SET switch for setting condition for

multiple heater open circuit detection.

SHORT indicator

(for short-mode

failure detection)

Power Device

Cartridge

TIME adjuster

(for extended soft-

start time)

DUTY adjuster

(for internal slope

setting)

ALARM adjuster

(for multiple heater

open circuit detection)

OPEN indicator

(for multiple heater

open circuit detection)

Single Heater Open Circuit

Detection (EH-series Model)

SHORT indicator

(for short-mode

failure detection)

CT Unit

OPEN indicator

(for single heater

open circuit

detection)

DUTY adjuster

(for internal

slope setting)

TIME adjuster

(for soft-start

time)

Reset

switch

Power

Device

Cartridge

Constant-current Model

(EC-series Model)

SHORT indicator

(for short-mode

failure detection)

OPEN indicator (for single

heater open circuit

detection)

CURRENT limit adjuster

(for limiting current)

DUTY adjuster

(for internal slope

setting)

TIME adjuster

(for extended

soft-start time)

RESET

switch

Power

Device

Cartridge

76 Power Controllers G3PX

Operation

■Error Detecting Function

Wiring

Single-phase Models

All G3PX-2@0EH/EHN/EC-series models incorporate terminals 11

and 12 for the CT Unit, 13 and 14 for the external reset switch, and

16 and 17 for relay output as well as power/input terminals 1 through

10.

Output

Single-phase Models

The following illustrations show the condition of the G3PX LED

indicators when the G3PX detects heater open circuit, a short-mode

failure (ON failure of components), or overcurrent (EC-series

constant-current models only). The indicator and relay output signals

are reset with the internal or external reset switch provided that the

error condition has been remedied.

1. When EH/EHN/EC-series models detect single or multiple heater

open circuit, the OPEN indicator is lit and the SPDT relay output

is ON.

Note: When the G3PX detects heater open circuit, the Level indicator

will be OFF regardless of the G3PX input condition. The red

OPEN indicator will be lit. EHN-series models, however, will

continue operating with level indication.

2. When EH/EHN/EC-series models detect a short-mode failure, the

SHORT indicator is lit and the SPDT relay output is ON.

Note: When the G3PX detects a short-mode failure, all LEDs of the

Level indicator and red SHORT indicator are lit. When you use

a breaker to disconnect the load with the relay output, all LEDs

of the Level indicator will be OFF regardless of the input to the

G3PX.

3. When EC-series models detect an overcurrent, the Level

indicator will flash and the SPDT relay output is ON. The input

signal will be shut off.

Note: When resetting, leave power supply terminals 10 to 9 or 8 ON.

G3PX-2@0EH

CT Unit

G32X-CT@@

3. For more than one heater.

Load 1

Load 2

CT Unit

Relay output

(SPDT)

Load

(see note 1)

(see note 2)

(see note 3)

External reset

switch

Note: 1. Connect either the black or white lead wire of the CT

Unit to terminal 11 and the other lead wire to terminal

12.The G3PX will malfunction if you do not connect

the CT Unit to the G3PX.

2. The rated current and voltage of G3PX models when

reset are as follows:

EH-series models: 12 mA at 12 VDC

EHN- and EC-series models: 1 mA at 12 VDC

Load

With continuous load current.

With load current shut off.

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