Cycle Control Units G32A-EA CSM_G32A-EA_DS_E_7_1 Refer to Safety Precautions for All Power Controllers. Used in Combination with the G3PA to Enable High-precision Temperature Control • Use cycle control to achieve power control with little noise. Used in combination with the G3PA to connect to single- and three-phase loads. Three types of input method available: Internal adjuster, external adjuster, or DC signals from 4 to 20 mA. Streamline design. Both DIN track mounting and screw mounting possible. Use linking terminals for close mounting of the G3PA. Built-in isolation transformer. Power supply range: 100 to 240 V. For the most recent information on models that have been certified for safety standards, refer to your OMRON website. Model Number Structure ■ Model Number Legend G32A-EA-US 3 1 2 1. Basic Model Type G32A: Accessory for G3PA 2. Basic Model Name EA: Cycle Control Unit 3. Certification US: Certified by UL and CSA Ordering Information ■ List of Models Name Isolation transformer Rated power supply voltage Model Cycle Control Unit Yes 100 to 240 VAC G32A-EA-US ■ Accessories (Order Separately) External Variable Resistor Model G32A-E-VR 1 G32A-EA Specifications ■ Ratings (at an Ambient Temperature of 25°C) Rated power 50 Hz 100 to 240 VAC 40 mA max. supply current 60 Hz 100 to 240 VAC Output signal 20 mA max. at 12 VDC ±15% (at 25°C) Input signal Current signal: 4 to 20 mA (input impedance: 352 Ω) Internal adjuster: 50 kΩ (1/4 W) External adjuster: 50 kΩ (1/4 W) Output cycle rate 0 to 100% Control cycle 0.2 s Number of operable Units 3 G3PA-VD Relays max. ■ Characteristics Power supply voltage range 75 to 264 VAC Dielectric strength 1,500 VAC, 50/60 Hz for 1 minute (between AC power supply and input/output terminals) Insulation resistance 100 MΩ max. (at 500 VDC) Vibration resistance 10 to 55 to 10 Hz, 0.375-mm single amplitude (when mounted to DIN track) 2 Shock resistance 300 m/s (approx. 30 G) Storage temperature –30 to 100°C (with no icing or condensation) Ambient temperature –30 to 80°C (with no icing or condensation) Ambient humidity 45% to 85% Weight Approx. 100 g Engineering Data Output Cycle Rate vs. Setting Value Output Cycle Rate vs. Control Current Control current Setting value 2 Output cycle rate (%) Output cycle rate (%) G32A-EA Nomenclature The following diagram shows the terminals, adjusters, and switches on the G32A-EA. Control method Input selection slide switches Input terminal C2 − External adjuster Input terminal C1 + 4 to 20 mA Output terminal (B1) + Internal adjuster (See note 2.) Input selection slide switches 4 to 20 mA Internal adjuster Control current Output terminal (B2) − AC power supply terminal (A1) 4 to 20 mA Note: 1. The input selection slide switches are factory-set to internal adjuster input. Change the setting of the switches for the AC power supply terminal (A2) input method required. 2. When using the internal adjuster, use with the input Setting the Input Method terminals (C1, C2) in the open state. Internal setting is not possible if there is a Temperature Controller or other device Select external adjuster, internal adjuster, or control current as the connected to C1 or C2. input method using the selection switches as shown in the following table. 3 G32A-EA ■ Cycle Control Setting Method The output cycle rate can be adjusted using the internal or external adjuster. For current control, refer to the Output Cycle Rate vs. Control Current graph on page 2. Note: When using the internal adjuster or external adjuster, it is necessary to set the input control method in the way described previously. VR setting Output cycle rate (%) Control cycle: 0.2 s Note: The resistance is 50 kΩ at 100% and 0 Ω at 0%. ■ Output Power Resolution ■ Cycle Control Method When power is controlled using the Cycle Control Unit, the output The power on the load side can be controlled by adjusting the resolution (minimum variation value) depends on the half cycle of the number of cycles within the control cycle of 0.2 s and repeating this power supply frequency and the time depends on the power supply control cycle. frequency. (SSR with zero cross function) Control cycle Output power resolution Electric furnace temperature 50 Hz 60 Hz 20 mA 0.2 s 5% (10 ms) 4.2% (8.3 ms) G32A-EA 12 mA Current control input 4 mA Control cycle: 0.2 s G32A-EA Output signal 50 Hz: 5% (10 ms) 60 Hz: 4.2% (8.3 ms) Control cycle: 0.2 s 4 G32A-EA Operation ■ Application Examples High-precision temperature control can be achieved in combination with the G3PA. Current signal DC, 4 to 20 mA G3PA-VD Internal adjuster G32A-EA 10 to 60 A 3 Relays max. G32A-E-VR External Adjuster 1. Control Using Current Input 3. Control Using Internal Adjuster Current output Temperature Controller NFB NFB A1 A1 G3PA G3PA G3PA G3PA A2 A2 G32A-EA G32A-EA G32A-D Hard-wired heaters G32A-D Hard-wired heaters Applications 1, 2, and 3 each use a different type of input method and so it is necessary to change the settings of the input selection 2. Control Using External Adjuster slide switches. Be sure to change the slide switch settings in accordance with the input method on page 3. External resistance Note: 1. For details of input selection slide switch settings, refer to NFB Setting the Input Method. 2. The above examples are for when a G3PA-VD (except 60-A models) is used at 200 VAC. 3. When performing ON/OFF control for example 2 or 3, do not connect output terminals B1 and B2 on the G32A-EA to input terminals A1 and A2 of the SSR as linking terminals, Rather, connect contacts between these terminals for A1 switching. G3PA G3PA The current flow is 20 mA max. at 12 VDC. A2 G32A-EA G32A-D Hard-wired heaters 5 G32A-EA ■ External Adjuster G32A-E-VR The external adjuster, its adjuster knob, and its nameplate, all come in a set (G32A-E-VR). External Adjuster (50 kΩ, B Characteristic) When wiring, connect in the way shown below. 1 7.5±0.4 M9P 0.75 M9P 0.75 0 6 dia. -0.1 2.8±0.2 dia. 20±1 dia. 1±0.2 20 min. 10±1 1.5 min. 1.6±0.2 20 max. 20 9.5±0.5 Less than 3 m Mounting Holes 7.5±0.4 9.5 dia. 3 dia. Note: Wire the external adjuster at a distance of less than 3 m. Nameplate Note: When using the external adjuster for input, be sure 44 dia. to set the input selection slide switches accordingly. Knob Filled with white resin 6 G32A-EA Dimensions Note: All units are in millimeters unless otherwise indicated. G32A-EA-US 8.6 4.5 Six, M3.5 terminal screws Linking terminal +B1 Internal Selection adjuster switch 64 90±0.3 100 max. 80 Linking terminal −B2 4.6×5.6 elliptic hole 3.5 20 max. 100 max. 23.7 Without Terminal Cover With Terminal Cover Two, 4.5-dia. or M4 holes Mounting Holes Terminal Arrangement/ Internal Connection Cycle control 90±0.3 Safety Precautions Refer to Safety Precautions for All Power Controllers. 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. 7 Terms and Conditions Agreement 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. Warranties. 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NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. Programmable Products. Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof. Performance Data. Data presented in Omron Company websites, catalogs and other materials 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 user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability. 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 part numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at any time to confirm actual specifications of purchased Product. Errors and Omissions. Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors or omissions. 2014.4 In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation Industrial Automation Company http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2014 All Right Reserved.