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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'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.
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
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Table of Contents
Related Manuals for Omron G3PX
Summary of Contents for Omron G3PX
- Page 1 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...
- Page 2 CT Unit 3. Length of Lead Wires 30 cm 100 cm 4. Series Blank: Series for single heater open circuit detection Series for multiple heater open circuit detection Series for constant current Variable Resistor G32X-@ 1. Basic Model Type G32X: Accessory for G3PX 2.
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Page 3: Ordering Information
G3PX-260EC-CT10 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. -
Page 4: Specifications
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 short- circuited when the supply frequency is 60 Hz. - Page 5 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.
- Page 6 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 min. (at 500 VDC) Dielectric strength 2,000 VAC, 50/60 Hz for 1 min.
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Page 7: Engineering Data
Engineering Data The following data is for an ambient temperature of 25 C. Output Characteristics Duty Setting G3PX-EUN/EH/EHN Models G3PX-EC Models G3PX-EUN/EH/EHN Models 100% 100% Input current (mA) Input current (mA) Input current (mA) Base-up Characteristics G3PX-2@0EUN Models Input current (mA) Load Current vs. - Page 8 G3PX-260E@ Models 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. G3PX Power Controllers...
- Page 9 Nomenclature Single-function Model Multiple Heater Open Circuit (EUN-series Model) Detection (EHN-series Model) G3PX-2@0EUN G3PX-2@0EHN-CT@@ RUN/SET switch for setting condition for multiple heater open circuit detection. Level indicator Level indicator RESET switch POWER indicator POWER indicator SHORT indicator (for short-mode BASE-UP adjuster...
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Page 10: Operation
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 CT Unit G32X-CT@@... - Page 11 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. Load 1...
- Page 12 10 mA at 5 V 20 sets Connection Example Temperature controller G3PX G3PX G3PX 3. A Temperature Controller (with a relay output) is used to vary the duty of G3PX. Temperature controller Load 1 Internal DUTY adjuster G3PX G32X-V3K External...
- Page 13 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 73 for the base-up characteristics.
- Page 14 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.
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Page 15: 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. - Page 16 0.59 to 0.78 N·m. 2. Make sure there is no dust or pieces of wire on the heat sinks of 5. Tighten the center screws of the G3PX with a tightening torque of the G32X-A or the G3PX.
- Page 17 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 140 0.3 50 0.3 Two, 4.6 dia. Two, M4 screws holes 140 0.2 109.8 150 max. Two, R2.3 holes 50 0.2...
- Page 18 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.
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Page 19: Installation
50/60 Hz 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. -
Page 20: Safety Precautions
Please observe the following precautions to prevent failure to current. operate, malfunction, or undesirable effect on product performance. Be sure to turn off power to the G3PX when wiring. The G3PX has Load current leakage although the G3PX is turned off if the power supply is connected to the G3PX, which may give an electric shock. -
Page 21: Troubleshooting
G3PX-2@0EHN Series: G32X-CT@@HN Check the default internal ramp setting. 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 Make sure that the adjuster number of turns of the wire around the CT Unit. - Page 22 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. Cat. No. K076-E1-04 In the interest of product improvement, specifications are subject to change without notice.