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. · Certified by UL and CSA. Model Number Structure Model Number Legend G3PX- [. . . ] 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. 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. 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. 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. 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. Make sure there is no dust or pieces of wire on the heat sinks of the G32X-A or the G3PX. 2. 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 Power Controllers G3PX 81 4. [. . . ] 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. [. . . ]