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Power Controllers
G3PX
CSM_G3PX_DS_E_2_1
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's unique design and carefully-selected materials 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.
Refer to Safety Precautions for All Power Controllers.
Model Number Structure
Model Number Legend
G3PX-@@@@-@
1 2345 6
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 4. 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
1
G3PX
G3PX Cartridge
G32X-@@
1 23
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
G32X-@@@
1 234
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
G32X-@
1 2
1. Basic Model Type G32X: Accessory for G3PX 2. Basic Model Name V3K: 3-k Variable Resistor V2K: 2-k Variable Resistor
2
G3PX
Ordering Information
List of Models
EUN Series
Phase Single Applicable load Level indicator Base-up function (See note.) Yes Soft-start time Carry current 40 A 60 A Rated voltage 100/110 VAC 200/220 VAC Model G3PX-220EUN G3PX-240EUN G3PX-260EUN Yes Resistive load Heater (e.g., alloy heater or halogen lamp) (See note 2.) Approx. 0.5 to 10 s 20 A
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 Base-up Characteristics on page 7. 2. Contact your OMRON representative for applications to transformer loads.
EH Series
Phase Applicable load Level indicator Single heater open circuit detection Yes Multiple heater open circuit detection No Carry current 20 A 40 A 60 A Yes (See note 2.) Yes 20 A 40 A 60 A Rated voltage Model (See note 1.) G3PX-220EH-CT03 G3PX-220EH-CT10 G3PX-240EH-CT03 G3PX-240EH-CT10 G3PX-260EH-CT03 G3PX-260EH-CT10 G3PX-220EHN-CT03 G3PX-220EHN-CT10 G3PX-240EHN-CT03 G3PX-240EHN-CT10 G3PX-260EHN-CT03 G3PX-260EHN-CT10 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. Contact your OMRON representative for applications to transformer loads.
Single
Resistive load Yes Heater (e.g., alloy heater or halogen lamp) (See note 3.)
100/110 VAC 200/220 VAC
EC Series
Phase Applicable load Level indicator Constant-current function Yes Single heater open circuit detection Yes Carry current 20 A 40 A 60 A Rated voltage Model (See note.) G3PX-220EC-CT03 G3PX-220EC-CT10 G3PX-240EC-CT03 G3PX-240EC-CT10 G3PX-260EC-CT03 G3PX-260EC-CT10
Single
Resistive load Yes Heater (e.g., alloy heater, pure metal heater, or halogen lamp) (See note 3.)
100/110 VAC 200/220 VAC
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. A CT Unit and Power Device Cartridge are provided with the Power Controller. 3. Contact your OMRON representative for applications to transformer loads.
3
G3PX
Accessories (Order Separately)
CT Unit
Name CT Unit Length of lead wires 30 cm 100 cm 30 cm 100 cm 30 cm 100 cm G3PX-2@@EC G3PX-2@@EHN Solderless terminals Yes Applicable models G3PX-2@@EH Model G32X-CT03 G32X-CT10 G32X-CT03HN G32X-CT10HN G32X-CT03C G32X-CT10C
Power Device Cartridge
Name Power Device Cartridge 20 A 40 A 60 A Carry current Applicable models G3PX-220E@@ G3PX-240E@@ G3PX-260E@@ Model G32X-A20 G32X-A40 G32X-A60
Note: The G32X-A is a dedicated Power Device Cartridge for the G3PX. Refer to Replacement Parts on page 15.
Specifications
Ratings (at an Ambient Temperature of 25C)
Control
Item G3PX220EUN/ 240EUN/ 260EUN 100/110, 200/230 VAC 50/60 Hz (See note 1.) External main 2 k (type B, 2 W min.) setting (See note 2.) Current input Voltage ON/ OFF input External duty setting Relay output for alarm 3 k (type B, 2 W min.) 2 k (type B, 2 W min.) G3PX220EH/ 240EH/ 260EH G3PX220EHN/ 240EHN/ 260EHN G3PX220EC/ 240EC/ 260EC
Rated voltage Frequency Input signal for control
4 to 20 mA (at 1 to 5 VDC) (Input impedance: 250) (See note 3.) 5 to 24 VDC (Input impedance: approx. 20 k) 3 k (type B) --SPDT: 8 A at 250 VAC/30 VDC
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 shortcircuited when the supply frequency is 60 Hz. 2. Use the G32X-V2K 2-k Variable Resistor for external main setting on EUN, EC, and EHN (G32X-V3K 3-k for 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
Model Rated load voltage G3PX-220E@ G3PX-220E@N G3PX-240E@ G3PX-240E@N G3PX-260E@ G3PX-260E@N 100/110, 200/220 VAC (50/ 60 Hz) 1 to 20 A (at 40C) (See note.) 1 to 40 A (at 40C) (See note.) 1 to 60 A (at 40C) (See note.) Applicable load Load current Inrush current 220 A (60 Hz, 1 cycle) 440 A (60 Hz, 1 cycle) 440 A (60 Hz, 1 cycle) Number of phases Single
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.
4
G3PX
Characteristics
EU/EH Series
Item 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 Multiple heater open circuit detection Min. phase detection Min. phase setting Min. load current for ON error detecting Abnormality detection time Leakage current Insulation resistance Dielectric strength Vibration resistance Shock resistance Ambient temperature Ambient humidity Weight 10% 1 Hz 0% to 95% 0% to 100% 0% to 100% Approx. 0.5 to 10 s (See note 3.) 0% to 90% ----------Approx. 1/6 --1A 0.1 s max. Approx. 1/6 30% max. of rated current (See note 5.) 1 s max. 10% to 100% (See note 1.) 10% to 100% (See note 1.) Approx. 0.1 to 1 s (See note 3.) --20% max. (See note 4.) 0% to 100% 0% to 100% Approx. 0.5 to 10 s (See note 3.) G3PX-220EUN/ 240EUN/260EUN G3PX-220EH/240EH/260EH G3PX-220EHN/ 240EHN/260EHN
Voltage drop with output ON 1.6 V max. (RMS) 10 mA max. at 100/110 VAC, 20 mA max. at 200/220 VAC 100 M min. (at 500 VDC) 2,000 VAC, 50/60 Hz for 1 min. Malfunction: 10 to 55 to 10 Hz, 100 m/s2 Malfunction: 300 m/s2 Operating: Storage: -25C to 65C (with no icing or condensation) -10C to 55C (with no icing or condensation) 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
Operating: 45% to 85% G3PX-220EUN: approx. 1.1 kg G3PX-240EUN: approx. 1.4 kg G3PX-260EUN: approx. 1.7 kg
Note: 1. 2. 3. 4. 5.
Duty setting does not complete to the OFF state (i.e. 10% remains). The start-up time is factory-set to 1 s on the EH Series, approx. 0.5 s on the EHN and EC Series. This is the initial start-up time with a 100% duty setting. Detection is effective when the set current is reduced by 20% or more. 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.
5
G3PX
EC Series
Item Operating voltage range Operating frequency range Output voltage adjustable range Internal duty setting range External duty setting range Start-up time Min. load current for ON error detecting Current limit range Excess current detection Constant current Abnormality detection time Voltage drop with output ON Leakage current Insulation resistance Dielectric strength Vibration resistance Shock resistance Ambient temperature Ambient humidity Weight 10% 1 Hz 0% to 95% 0% to 100% 0% to 100% Approx. 0.5 to 10 s 20% max. of rated current 0% to 100% Peak current of 110 A within 1 cycle Peak current of 220 A within 1 cycle Peak current of 330 A within 1 cycle G3PX-220EC G3PX-240EC G3PX-260EC
3% max. with 10-time increment of load value 3% max. with 10% change of voltage 1 s max. 1.6 V max. (RMS) 10 mA max. at 100/110 VAC, 20 mA max. at 200/220 VAC 100 M min. (at 500 VDC) 2,000 VAC, 50/60 Hz for 1 min. Malfunction: 10 to 55 to 10 Hz, 100 m/s2 Malfunction: 300 m/s2 Operating: -25C to 65C (with no icing or condensation) Storage: -10C to 55C (with no icing or condensation) Operating: 45% to 85% G3PX-220EC: approx. 1.1 kg G3PX-240EC: approx. 1.4 kg G3PX-260EC: approx. 1.7 kg
6
G3PX
Engineering Data
The following data is for an ambient temperature of 25C.
Output Characteristics
G3PX-EUN/EH/EHN Models G3PX-EC Models
Duty Setting
G3PX-EUN/EH/EHN Models
100%
Output voltage (%)
Output voltage (%)
Output voltage (%)
60%
40%
20%
Input current (mA)
Input current (mA)
Input current (mA)
Base-up Characteristics
G3PX-2@0EUN Models
Output voltage (%)
Input current (mA)
7
G3PX
Load Current vs. Ambient Temperature
G3PX-220E@ Models G3PX-240E@ Models G3PX-260E@ Models
Load current (A)
Load current (A)
20
40
Load current (A)
-10 0 20 40 55 60
25
50
80
60
15 14
30
47 40
10
20
20 5 10
0
-10
0
20
40
55 60
0
0
-10
0
20
40
55 60
Ambient temperature (C)
Ambient temperature (C)
Ambient temperature (C)
25
50
80
Derating curve under UL standard
20 40
Derating curve under UL standard
Derating curve under UL standard
Load current (A)
Load current (A)
Load current (A)
60
15 14 12 10
30 25 20
47 40
25 20
5
10
0 -10
0
20 25
40
55 60
0 -10
0
20 25
40
55 60
0 -10
0
20 25
40
55 60
Ambient temperature (C)
Note: Please use proper ventilation and cooling.
Ambient temperature (C)
Note: Please use proper ventilation and cooling.
Ambient temperature (C)
Note: 1. Please use proper ventilation and cooling. 2. Please note that derating curve above 40 A is applicable under the UL standard only with forced air cooling by fan.
One Cycle Surge Current: Non-repetitive
G3PX-220E@ Models Inrush current (A.Peak) Inrush current (A.Peak) G3PX-240E@ Models Inrush current (A.Peak) G3PX-260E@ Models
200
400
400
150
300
300
100
200
200
50
100
100
0
10
30 50
100 200
500 1,000
5,000
0
0 10 30 50 100 200 500 1,000 5,000 10 30 50 100 200 500 1,000 5,000
Energized time (ms)
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.
8
G3PX
Nomenclature
Single-function Model (EUN-series Model)
G3PX-2@0EUN
Multiple Heater Open Circuit Detection (EHN-series Model)
G3PX-2@0EHN-CT@@
RUN/SET switch for setting condition for multiple heater open circuit detection.
Level indicator Level indicator POWER indicator POWER indicator BASE-UP adjuster DUTY adjuster (for internal slope setting) TIME adjuster (for Extended soft-start time) SHORT indicator (for short-mode failure detection) RESET switch
Power Device Cartridge
CT Unit OPEN indicator (for multiple heater open circuit detection) ALARM adjuster (for multiple heater open circuit detection) DUTY adjuster (for internal slope setting) TIME adjuster (for extended soft-start time) Power Device Cartridge
Single Heater Open Circuit Detection (EH-series Model)
G3PX-2@0EH-CT@@
Level indicator POWER indicator SHORT indicator (for short-mode failure detection)
Constant-current Model (EC-series Model)
G3PX-2@0EC-CT@@
Level indicator POWER indicator SHORT indicator (for short-mode failure detection) OPEN indicator (for single heater open circuit detection)
RESET switch
CT Unit OPEN indicator (for single heater open circuit detection) DUTY adjuster (for internal slope setting) TIME adjuster (for soft-start time)
CT Unit CURRENT limit adjuster (for limiting current) DUTY adjuster Power (for internal slope Device setting) Cartridge TIME adjuster (for extended soft-start time) Reset switch
Power Device Cartridge
9
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.
CT Unit G32X-CT@@ CT Unit Load 1 (see note 1)
2. When EH/EHN/EC-series models detect a short-mode failure, the SHORT indicator is lit and the SPDT relay output is ON.
With continuous load current.
11 12 13 14 (see note 2) 15 Relay output (SPDT) 16 17
External reset switch
With load current shut off.
G3PX-2@0EH
Load 2 (see note 3) Load Load
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 3. For more than one heater.
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.
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.
Note: When resetting, leave power supply terminals 10 to 9 or 8 ON.
10
G3PX
Wiring
Main Circuit
Single-phase Models
The following illustrations show connection examples:
1 2 3 4 5
Load 1
G3PX 6 7 200/230 VAC 100/110 VAC 8 9 10 Load 2
Load
Note: Use a single power supply for the G3PX and the load.
Setting Circuit
Analog Control
Single-phase Models
1. A Temperature Controller with an output of 4 to 20 mA is used to control the G3PX.
1 2 3 4 to 20 mA Load 1 + Temperature Controller - (600 *) 4 to 20 mA 4 5 G3PX (250 *)
Temperature Controller -
+
4 5 6 5 7 8 9 10 Load 2 G3PX 4 G3PX (250 *) *Impedance
Note: Two G3PX models can be connected in series to OMRON's single Temperature Controller (with an internal impedance of 600 ) with a current output. 2. A Temperature Controller with an output of 4 to 20 mA is used with the G3PX to change the duty.
1 2 3 + Temperature Controller - 4 to 20 mA 4 5 G3PX 6 7 3 2 1 G32X-V3K External Variable Resistor (3 k) for duty setting 8 9 10 Load 2 DUTY Internal DUTY adjuster Load 1
Note: You can change the duty with the external or internal ramp adjuster.
11
G3PX
ON/OFF Control
Single-phase Models
1. A Temperature Controller is used to change the duty of G3PX.
1 5/12/24 VDC ON/OFF 2 3 4 - 5 6 7 3 2 1 G32X-V3K External DUTY Adjuster (3 k) 8 9 10 Load 2 DUTY G3PX Internal DUTY adjuster Load 1
+ Temperature Controller
Note: You can change the duty with the external or internal variable resistor.
2. A Temperature Controller (with a voltage output) is used to control several G3PXs. Temperature Controller specifications E5@K: 40 mA at 12 V E5@N: 20 mA at 12 V 20 mA at 5 V 10 mA at 5 V No. of G3PX 20 sets 20 sets 20 sets 20 sets
Connection Example
Temperature controller + -
3 5 G3PX
3 5 G3PX
3 5 G3PX
3. A Temperature Controller (with a relay output) is used to vary the duty of G3PX.
Temperature controller
1 2 3 4 3 G32X-V3K External DUTY Adjuster (3 k) 2 1 5 6 7 8 9 10
Load 1
Internal DUTY adjuster
G3PX DUTY
Load 2
12
G3PX
Manual Control
Single-phase Models
3
G32X-V3K or G32X-V2K External DUTY Adjuster
1 2 3 4
Load 1
2 1
Internal DUTY adjuster
3
G32X-V3K External DUTY Adjuster (3 k) for duty setting
5 6 7 8 9 10
2 1
G3PX DUTY
Load 2
Note: Delicate duty adjustment is possible with the external or internal resistor. Use a right DUTY adjuster (2- or 3-k type) according to the G3PX model as follows: G32K-V3K (3 k) for EH-series models G32X-V2K (2 k) for EUN-, EHN-, and EC-series models
Two-position Control
Single-phase Models
H (High)
G32X-V3K or G32X-V2K External DUTY Adjuster
1 2 3 4
Load 1
L (Low)
RY 5 6 7 8 9 10 Load 2 G3PX
Note: 1. A temperature controller with relay output or a single relay can be used with the G3PX in two-position (high-and low-position) control, in which case the relay contact current is 30 mA at 12 VDC with the External DUTY Adjuster set to 0 . 2. Use a right DUTY adjuster (2- or 3-k type) according to the G3PX model as follows: G32X-V3K (3 kW) for EH-series models G32X-V21K (2 kW) for EUN-, EHN-, and EC-series models.
Setting of Base-up Output (G3PX-2@0EUN Series)
The base-up output can be adjusted with the base-up adjuster knob. It is also possible to control the base-up output for the full scale of 4 to 20-mA input current by adjusting the duty adjuster. Refer to Engineering Data on page 7 for the base-up characteristics.
G3PX-2@0EHN Series (Multiple Heater Open Circuit Detection Model)
Setting
1. Use the G32X-CT@@HN CT Unit and make sure that the G3PX is wired correctly. 2. The G3PX initially set is shown in the following illustration. Make sure that the RUN/SET switch has been set to SET. Make sure that the DUTY adjuster has been turned clockwise to the maximum. 3. Adjust the sensitivity. Turn the ALARM adjuster and set to the position where the OPEN indicator is lit. Stop turning the ALARM adjuster as soon as the indicator is lit to complete the setting.
13
G3PX
4. Set the RUN/SET switch to RUN. When all settings have been finished, the OPEN indicator is OFF.
Note: 1. The G3PX can control any part of the phase as long as the controlled phase is approximately 1/6 or more in width. 2. Be sure to prepare terminals 18 and 19 corresponding to the supply frequency of 50 Hz or 60 Hz. Otherwise, a setting error will result in a malfunction regardless of the RUN/SET switch setting. When the error has occurred, turn the ALARM adjuster counterclockwise to the minimum setting, reset the G3PX, and readjust.
14
G3PX
Replacement Parts
G32X-A Power Device Cartridge
The temperature indicator will be lit in red if the power element is damaged. If the power element is damaged due to overcurrent or other reasons, the power element and its peripheral parts can be replaced. The power element and its peripheral parts can be replaced without disconnecting the wires of the G3PX. Improve the heat radiation of the G3PX before replacing the Cartridge. The temperature indicator will not be lit in red if the G3PX has overcurrent due to load short-circuiting or other reasons over a short time.
Appearance
G32X-A20 G32X-A40 G32X-A60
Replacement of G32X-A20 Power Device Cartridge
Use the special tool (provided) to extract the Cartridge for replacement with a new one.
3. Insert the Cartridge into the opening of the G3PX so that the letters on the Cartridge and those on the G3PX are in the same direction and sides A and B are even.
A B
Extraction
Follow the procedures below to dismount the Power Device Cartridge from the G3PX. 1. Switch off the power. 2. Remove the terminal cover. 3. Hook the tool on the indented portions of the Power Device Cartridge as shown in the illustration below and pull up the Power Device Cartridge vertically.
4. Attach the terminal cover. 5. Switch on the power and check the G3PX to be sure it works properly.
Special tool Indented portions
Terminal cover
G32X-A40/60
The G32X-A40 and G32X-A60 are secured with screws.
Extraction
The procedures for dismounting the Power Device Cartridge are as follows: 1. Switch off the G3PX.
Mounting
The procedures for mounting the Power Device Cartridge are as follows: 1. Apply silicone grease (provided with the G32X-A) to the entire surface of the heat sink. 2. Make sure there is no dust or pieces of wire on the heat sinks of the G32X-A or the G3PX.
2. Remove the terminal cover. 3. Be sure to turn off the G3PX and loosen the screws located in the upper center and lower center. These screws are connected to terminals 1 and 2.
Loosen
Loosen
15
G3PX
4. Loosen the screws on both corners. 3. Insert the Cartridge into the opening of the G3PX so that the letters on the Cartridge and those on the G3PX are in the same direction and sides A and B are even.
Loosen B
A
Loosen
5. Hold the indented part of both corners to dismount the Cartridge.
Mounting
1. Apply silicone grease (provided with the G32X-A) to the entire surface of the heat sink. 2. Make sure there is no dust or pieces of wire on the heat sinks of the G32X-A or the G3PX. 4. Tighten the screws on both corners with a tightening torque of 0.59 to 0.78 N*m. 5. Tighten the center screws of the G3PX with a tightening torque of 0.59 to 0.78 N*m. 6. Attach the terminal cover. 7. Switch on the power and check the G3PX to be sure it works properly.
External Variable Resistor
The G32X-V3K and G32X-V2K are provided with a set consisting of adjuster, knob, and nameplate. Resistive value (See note 1.) 3 k 2 k G32X-V2K Model G32X-V3K (See note 2.) Note: 1. The G32X-V3K is equivalent to the conventional G32X-VR. 2. Resistive Value
The resistance is read on the back of the variable resistor.
External DUTY Adjuster
2.51 M9P0.75
0 6 -0.1 dia.
Knob
2.80.2 dia. Filled with white resin
34 26
120.2
311 dia.
10.1 R26 max.
15 min. 101 17 max.
1.60.2
30 max.
13.4 201 17
Mounting Holes
3 dia. hole
Nameplate
6.5 1.6
14
%
48
120.2
9.5 dia. hole
G32X-VR
48
100
16
G3PX
Dimensions
Note: All units are in millimeters unless otherwise indicated.
Single-phase Models
G3PX-220E@ Series
Mounting Holes
Four, 4.5 dia. or M4 holes
119
1400.3
500.3 Two, 4.6 dia. holes 8.6 Two, M4 screws 8.6
7.6 1400.2 130 150 max. 109.8
Two, R2.3 holes
108 120 130 max.
500.2 70 max.
G3PX-240E@ Series
Mounting Holes
Four, 4.5 dia. or M4 holes
119
1400.3
650.3 Two, 4.6 dia. holes 13 Two, M5 screws 13
7.6 1400.2 150 max. 130 109.8
Two, R2.3 holes
108 120 130 max.
650.2 85 max.
17
G3PX
G3PX-260E@ Series
Mounting Holes
Four 4.5-dia. or M4 holes
114 1400.3
Two, 4.6 dia. holes
800.3 17 Two, M6 screws 17
7.6 1400.2 150 max. 130 109.8
Two, R2.3 holes 108 120 130 max. 800.2 100 max.
G32X-CT03@ Series G32X-CT10@ Series
60 max. 50 17 40 14 17 dia. hole (15 dia., see note 1) 55 9.5 30 (see note 2) 24 35 Two 4.5-dia. or M4 holes
Mounting Holes
500.2
Note: 1. Color of the hole EH Series: Black EHN Series: White EC Series: Light gray The size of the hole of CT Units for EC- and EHN-series models is 15 dia.
2. The G32X-CT03@ incorporates 30-cm solderless terminals and the G32X-CT10@ incorporates 100-cm solderless terminals.
18
G3PX
Installation
Terminal Arrangement
Single-phase Models
G3PX-220EUN G3PX-240EUN G3PX-260EUN
1 2 3 4 5 6 7 8 9 10 100/110 VAC 50/60 Hz SOURCE Internal contact configuration 200/230 VAC 50/60 Hz 17 8 9 10 100/110 VAC 50/60 Hz External main setting 3 kB 2 W MAN SET Voltage ON/OFF input VOLTAGE IN Current input 4 to 20 mA DC CURRENT (1 to 5 VDC) (Voltage) 5 to 24 VDC INPUT 15 External duty setting 3 kB MAN DUTY SET ALARM 6 16 7 SOURCE 200/230 VAC 50/60 Hz External duty setting 3 kB MAN DUTY SET 2 kB, 2 W for EUN-series models
G3PX-220EH G3PX-240EH G3PX-260EH
CT UNIT G32X-CT W B 1 11 2 12 3 13 RESET 14 5 4 External main setting 3 kB 2 W MAN SET Voltage ON/OFF input VOLTAGE IN Current input 4 to 20 mA DC CURRENT (1 to 5 VDC) (VOLTAGE) 5 to 24 VDC INPUT
G3PX-220EHN/220EC G3PX-240EHN/240EC G3PX-260EHN/260EC
CT UNIT G32X-CT W B 1 11 2 12 3 13 RESET 14 5 ALARM Internal contact configuration OPEN 50 Hz SHORT 60 Hz (see note) 15 6 16 7 17 8 18 9 19 10 100/110 VAC 50/60 Hz 200/230 VAC 50/60 Hz SOURCE External duty setting 3 kB MAN DUTY SET 4 External main setting 2 kB 2 W MAN SET Voltage ON/OFF input VOLTAGE IN Current input 4 to 20 mA DC CURRENT (1 to 5 VDC) (VOLTAGE)
5 to 24 VDC INPUT
Note: Open the terminals for 50 Hz or short-circuit the terminals for 60 Hz. When the product is shipped, the terminals are short-circuited using a short-circuiting bar to set to 60 Hz. When using at 50 Hz, remove the short-circuiting bar.
19
G3PX
Safety Precautions
Precautions for Correct Use
Please observe the following precautions to prevent failure to operate, malfunction, or undesirable effect on product performance.
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.
Load
Only resistive loads can be connected to the G3PX. Contact your OMRON representatives if it is necessary to connect inductive or transformer loads.
Mounting
Pay utmost attention when mounting the G3PX so that the G3PX will not fall thus resulting in injury.
Tightening Torque
Apply the following tightening torque. Output terminal: 20-A model: 1.47 N*m 40-A model: 2.45 N*m 60-A model: 4.12 N*m Terminal block: Single-phase model: 0.98 N*m Be sure to protect the terminals with the protective cover after wiring.
Vertical Mounting
Wiring for Error Detection
If 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.
Horizontal Mounting
Instruments
Instrument Thermal type Digital type displaying root-mean-square values Moving-iron type Rectifier type Not available (not precise enough) Remarks Available
Note: In the case of flat mounting, the 30% derating of the load current is required. Close Mounting Example (Single-phase Models)
10 mm 10 mm
Multimeter Digital multimeter
The instruments are used for displaying root-mean-square voltage and current values of the AC circuitry.
Operation Monitoring
The level indicator just indicates the phase of the load and it is not highly precise.
Ramp Setting
50 mm
There is a decrease in ramp if the internal DUTY adjuster is turned counterclockwise.
DUTY
DUTY
10 mm
10 mm
Note: Make sure that there is a space of at least 50 mm vertically and at least 10 mm horizontally between adjacent single-phase models.
100% 10% If the External DUTY Adjuster is used, set the Internal DUTY Adjuster to 100%.
20
G3PX
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@@HN G3PX-2@0EC 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) For 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.
Troubleshooting
Check the following if the G3PX does not operate or has difficulty in temperature control. * The load does not turn on with 100% input. Check the default internal ramp setting.
DUTY
Make sure that the adjuster is set to the farthest clockwise position.
Also check the current limit adjuster if the G3PX is a constant DC model.
CUR LIM
External DUTY Adjuster
Use 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 G3PX-2@0EC Series
* The G3PX does not operate or is in abnormal operation. Make sure that all input terminals are connected properly with no mistakes in polarity. Make sure that the internal DUTY adjuster is not set to the farthest clockwise position. Make sure that the frequency used by the G3PX (i.e., 50 or 60 Hz) is set properly. (This applies to the EC, and EHN models.) * The G3PX malfunctions if the external adjusters are turned. Make sure that the numbers on the external adjusters coincide with the corresponding terminal numbers on the G3PX. Make sure that the 2-k and 3-k DUTY adjusters are connected correctly.
External main setting External duty setting
Base-up Function
If the model in use has the model number suffix "EUN," the base-up function is available. The 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 Cartridge
Do not apply power to the G3PX with the Power Device Cartridge dismounted.
Heater Open Circuit Detection
EH and EHN Models
The heater open circuit detective function is not available for detecting the phase less than the following.
(Positive) (Positive)
Note: 1, 2, 3, 5, 6, and 7 are terminal numbers of the G3PX. * Temperature control with a Voltage-output Temperature Controller is not smooth.
Make sure that the controlled soft-start up/down time has been adjusted properly. If not, turn the TIME adjuster counterclockwise to the minimum setting to reduce the controlled start-up/down time.
Phase not detectable G3PX-20EH Series: /8 or less G3PX-20EHN Series: Approx. /6 or less
Power Supply
Single-phase Models Only
Do 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.
Input signal
Controlled soft-start up
TIME Reduce this period.
Input signal Controlled soft-start up
Others
It is not possible to use three single-phase models for three-phase load control. If 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.
TIME
21
G3PX
* The Level indicator is not OFF with a 0% input signal (G3PX2@0EUN Series). Make sure that the BASE UP adjuster has been turned counterclockwise to the minimum setting. The following wiring will be required if the breaker or contactor connected between the power supply and the G3PX is operated by the relay output of the G3PX.
BASE UP
Make sure that the adjuster is turned counterclockwise to the minimum setting.
* The OPEN indicator of a multiple heater open circuit detection model is lit at the initial stage (G3PX-2@0EHN Series). Make sure that the initial settings are OK. If not, readjust the G3PX. Make sure that terminals 18 and 19 are open if the supply frequency is 50 Hz. These terminals must be short-circuited if the supply frequency is 60 Hz. Make sure that the load current is large enough. * The Level indicator LEDs of a constant-current model are all lit and no power control operation is possible. Make sure that the load current is large enough. Countermeasure 1: Adjust the CUR LIM adjuster so that the LED on the farthest right of the Level indicator is OFF.
Adjust so that this LED is OFF. Magnet contactor Load
CUR LIM adjuster for limiting current
Countermeasure 2: When the supply current is less than 50%, increase the number of turns. When the supply current is 50% of the rated current, the wires must be coiled twice on the CT Unit. When the supply current is 25% of the rated current, the wires must be coiled three to four times on the CT Unit. * No reset will be performed even if the RESET button is pressed. Check whether the RESET button is pressed while there is nothing input into to power supply terminals 8 and 10 or 9 and 10 of the G3PX. Be sure to press the RESET button with power supplied to the G3PX.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. In the interest of product improvement, specifications are subject to change without notice.
22
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 Liability
WARRANTY
OMRON'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 specified) 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 LIABILITY
OMRON 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 the 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 Considerations
SUITABILITY FOR USE
OMRON 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 products. At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient 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 PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications 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 significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
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.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.
2008.11 In the interest of product improvement, specifications are subject to change without notice.
Industrial Automation Company
http://www.ia.omron.com/
OMRON Corporation
(c)Copyright OMRON Corporation 2008 All Right Reserved.

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