User manual OMRON G3PX

[. . . ] 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. [. . . ] 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 78 Power Controllers 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 . 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 73 for the base-up characteristics. G3PX-2@0EHN Series (Multiple Heater Open Circuit Detection Model) Setting 1. HN CT Unit and make sure that the G3PX is wired correctly. 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. 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. Power Controllers G3PX 79 4. 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. 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. 80 Power Controllers 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. [. . . ] 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. [. . . ]