Omron G3PX User Manual
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
• OMR ON’s un ique design and ca refully-selected material s made
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
G3PX-@@@@-@
1
2 3 4 5 6
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.
Power Controllers G3PX 67
G3PX Cartridge
G32X-@@
12
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
3
CT Unit
G32X-@@@
3
2
1
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
4
Variable Resistor
G32X-@
1
2
1. Basic Model Type
G32X: Accessory for G3PX
2. Basic Model Name
V3K: 3-k
V2K: 2-k
Ω Variable Resistor
Ω Variable Resistor
68 Po wer Controllers G3PX
Ordering Information
■List of Models
EUN Series
Phase Applicable load Level indicator Base-up function
Single Resistive load
Heater
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.
Yes Yes Approx. 0.5 to 10 s 20 A 100/110 VAC
(See note 1.)
Soft-start time Carry
current
40 A G3PX-240EUN
60 A G3PX-260EUN
Rated voltage Model
G3PX-220EUN
200/230 VAC
(See note 2.)
EH Series
Phase Applicable load Level indicator Single heater
Single Resistive load
Heater
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.
Yes Yes No 20 A 100/110 VAC
open circuit
detection
Yes (See note 2.) Yes 20 A G3PX-220EHN-CT03
Multiple heater
open circuit
detection
Carry
current
40 A G3PX-240EH-CT03
60 A G3PX-260EH-CT03
40 A G3PX-240EHN-CT03
60 A G3PX-260EHN-CT03
Rated voltage Model
200/230 VAC
(See note 3.)
(See note 1.)
G3PX-220EH-CT03
G3PX-220EH-CT10
G3PX-240EH-CT10
G3PX-260EH-CT10
G3PX-220EHN-CT10
G3PX-240EHN-CT10
G3PX-260EHN-CT10
EC Series
Phase Applicable
load
Single Resistive load
Heater
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.
Level indicator Constant-current
function
Yes Yes Yes 20 A 100/ 110 VAC
Single heater
open circuit
detection
Carry
current
40 A G3PX-240EC-CT03
60 A G3PX-260EC-CT03
Rated voltage Model
200/230 VAC
(See note 2.)
Power Controllers G3PX 69
(See note 1.)
G3PX-220EC-CT03
G3PX-220EC-CT10
G3PX-240EC-CT10
G3PX-260EC-CT10
■Accessories (Order Separately)
CT Unit
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
Power Device Cartridge
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
Note: The G32X-A is a dedicated Power Device Cartridge for the G3PX.
Refer to Replacement Parts on page 81.
Specifications
■R atings (at an Ambient Temperature of 25°C)
Control
Item G3PX-
Rated voltage 100/110, 200/230 VAC
Frequency 50/60 Hz (See note 1.)
Input
signal for
control
Relay output for alarm --- SPDT: 8 A at 250 VAC/30 VDC
Note: 1. 50/60 Hz (no selector required) (EUN Series)
External main
setting
(See note 2.)
Current input 4 to 20 mA (at 1 to 5 VDC) (Input impedance: 250
Voltage ON/
OFF input
External duty
setting
Terminals 18 and 19 of EHN/EC-series models must be open when the supply frequency is 50 Hz. These terminals must be shortcircuited when the supply frequency is 60 Hz.
2. Use the G32X-V2K 2-k
3. Input 4 to 20 mA or 1 to 5 VDC linear input to the 4 to 20 mA current input terminal.
2 k
5 to 24 VDC (Input impedance: approx. 20 k
3 k
220EUN/
240EUN/
260EUN
Ω (type B, 2 W min.) 3 kΩ (type B, 2 W min.) 2 kΩ (type B, 2 W min.)
Ω (type B)
Ω Variable Resistor for external main setting on EUN, EC, and EHN (G32X-V3K 3-kΩ for EN-series models) .
Output
Model Applicable lo a d
Rated load voltage Load current Inrush current Number of phases
G3PX-220E@
G3PX-220E@N
G3PX-240E@
G3PX-240E@N
G3PX-260E@
G3PX-260E@N
100/110, 200/230 VAC (50/
60 Hz)
1 to 20 A (See note.) 220 A (60 Hz, 1 cycle) Single
1 to 40 A (See note.) 440 A (60 Hz, 1 cycle)
1 to 60 A (See note.) 440 A (60 Hz, 1 cycle)
G3PX220EH/
240EH/
260EH
Ω) (See note 3.)
Ω)
G3PX220EHN/
240EHN/
260EHN
G3PX220EC/
240EC/
260EC
70 Po wer Controllers G3PX
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 shor t mode failure will be detected if the current has risen to 20% of the rated value.
■Characteristics
EU/EH Series
Item G3PX-220EUN/
Operating voltage range
Operating frequency
range
Output voltage adjustable
range
Internal duty setting
range
External duty setting
range
Start-up time
(See note 2.)
Base-up range 0% to 90% ---
Multiple heater open cir-
cuit detection
Min. phase detection --- Approx. 1/6
Min. phase setting --- --- Approx. 1/6 π
Min. load current for ON
error detecting
Abnormality detection
time
Voltage drop with output ON1.6 V max. (RMS)
Leakage current 10 mA max. at 100/110 VAC, 20 mA max. at 200/230 VAC
Insulation resistance 100 M
Dielectric strength 2,000 VAC, 50/60 Hz for 1 min.
Vibration resistance
Shock resistance
Ambient temperature Operating: –25°C to 65°C (with no icing or condensation)
Ambient humidity Operating: 45% to 85%
Weight G3PX-220EUN: approx. 1.1 kg
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.
±10%
±1 Hz
0% to 95%
0% to 100% 10% to 100% (See note 1.) 0% to 100%
0% to 100% 10% to 100% (See note 1.) 0% to 100%
Approx. 0.5 to 10 s
(See note 3.)
--- 20% max. (See note 4.)
--- 1 A 30% max. of rated current
--- 0.1 s max. 1 s max.
Malfunction: 10 to 55 to 10 Hz, 100 m/s
Malfunction: 300 m/s
Storage: –10
G3PX-240EUN: approx. 1.4 kg
G3PX-260EUN: approx. 1.7 kg
240EUN/260EUN
Ω min. (at 500 VDC)
2
°C to 55°C (with no icing or condensation)
G3PX-220EH/240EH/260EH G3PX-220EHN/
Approx. 0.1 to 1 s
(See note 3.)
π
2
G3PX-220EH: approx. 1.1 kg
G3PX-240EH: approx. 1.4 kg
G3PX-260EH: approx. 1.7 kg
Approx. 0.5 to 10 s
(See note 3.)
(See note 5.)
G3PX-220EHN: approx. 1.2 kg
G3PX-240EHN: approx. 1.5 kg
G3PX-260EHN: approx. 1.8 kg
240EHN/260EHN
Power Controllers G3PX 71
EC Series
Item G3PX-220EC G3PX-240EC G3PX-260EC
Operating voltage range
Operating frequency range
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
Current limit range 0% to 100%
Excess current detection Peak current of 110 A within
Constant current
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 M
Dielectric strength 2,000 VAC, 50/60 Hz for 1 min.
Vibration resistance
Shock resistance
Ambient temperature Operating: –25°C to 65°C (with no icing or condensation)
Ambient humidity Operating: 45% to 85%
Weight G3PX-220EC: approx. 1.1 kg
±10%
±1 Hz
20% max. of rated current
1cycle
±3% max. with 10-time increment of load value
±3% max. with ±10% change of voltage
Ω min. (at 500 VDC)
Malfunction: 10 to 55 to 10 Hz, 100 m/s
Malfunction: 300 m/s
Storage: –10
G3PX-240EC: approx. 1.4 kg
G3PX-260EC: approx. 1.7 kg
2
°C to 55°C (with no icing or condensation)
Peak current of 220 A within
1cycle
2
Peak current of 330 A within
1 cycle
72 Po wer Controllers G3PX
Engineering Data
)
)
)
)
The following data is for an ambient temperature of 25°C.
Output Characteristics Duty Setting
G3PX-EUN/EH/EHN Models
Output voltage (%)
Input current (mA
Base-up Characteristics
G3PX-2@0EUN Models
G3PX-EC Models G3PX-EUN/EH/EHN Models
Output voltage (%)
Input current (mA
Output voltage (%)
Input current (mA
100%
100%
60%
60%
40%
40%
20%
20%
Output voltage (%)
Input current (mA
Load Current vs. Ambient Temperature
G3PX-220E@ Models
Load current (A)
Ambient temperature (°C)
G3PX-240E@ Models G3PX-260E@ Models
Load current (A)
Ambient temperature (°C) Ambient temperature (°C)
Load current (A)
Power Controllers G3PX 73
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