User manual OMRON H3FA DATASHEET

[. . . ] Before ordering, please check the "List of Models" on page 2 for availability. H3FA- @ @ @ @ 1 2 3 4 4. Supply voltage For contact output models 5DC: 5 V DC 6DC: 6 V DC 12DC: 12 V DC 24DC: 24 V DC For solid-state output models 5/6DC: 5/6 V DC 12/24DC: 12/24 V DC 1. Time-limit contact None: Contact outputs (SPST-NO + SPST-NC) S: Solid-state outputs 2. Time range A: 1 s to 10 min B: 6 s to 60 min 3. [. . . ] In this case, the current flow is approximately 0. 1 mA. If a contact is used for control, use a contact with high contact reliability, If a transistor is used for control, use an ICEO of 10 µA and a VCE (sat) of 0. 5 V or less. ON Power supply (terminals 1 and 24) (See note. ) Reset input (terminals 1 and 4) SPST-NO contact output (terminals 13 and 16) Solid-state output Set time (terminals 1 and 10) SPST-NC contact output (terminals 9 and 12) OFF ON OFF Integration Operation By opening the terminals connected to the internal variable resistor, Timer operation can be interrupted to enable the Timer to perform time integration operations. Interrupt Timer operation by opening terminals 21 and 22 when using the internal variable resistor or terminals 21 and 23 when using the external resistor. Timer operation can be resumed by reconnecting the terminals. ON Power supply (terminals 1 and 24) (See note. ) For internal variable resistor (terminals 21 and 22) For external resistor (terminals 21 and 23) Reset input (terminals 1 and 4) SPST-NO contact output (terminals 13 and 16) Solid-state output (terminals 1 and 10) SPST-NC contact output (terminals 9 and 12) Short Open Short Open OFF ON Short 10 ms min. Short Short Open 10 ms min. Set time Set time Set time T1 T2 T3 T4 Tn Note: When using a 12/24 V DC-operated model with a 12 V DC power supply, short terminals 13 and 15. Note: 1. Control output is provided when the set time has elapsed (T1 + T2 or T3 + T4). When using a 12/24 V DC-operated model with a 12 V DC power supply, short terminals 13 and 15. Contact Output (Top View) Contact Output (Top View) Solid-state Output (Top View) When using the 12/24 V DC-operated model with a 24 V DC power supply, open terminals 13 and 15. Solid-state Output (Top View) When using the 12/24 V DC-operated model with a 24 V DC power supply, open terminals 13 and 15. Solid-state Timer H3FA 5 H3FA-AU, H3FA-BU, H3FA-SAU, H3FA-SBU One-shot Output Operation Turn ON the power and apply a start input (short terminals 6 and 1). (Power turns ON when power terminals 1 and 24 are shorted or when terminals 13 and 15 are shorted when using a 12/24 V DCoperated model with a 12 V DC power supply. ) An output is produced immediately and is reset when the set time has elapsed. If the reset input is applied (short terminals 4 and 1) with no start input (open terminals 6 and 1) while the Timer is operating, the Timer stops operating and the output is reset. When operating with an external start or reset input, the current flow from terminal 6 to terminal 1 (start input) or from terminal 4 to terminal 1 (reset input) is approximately 0. 1 mA. A highly reliable contact is therefore recommended for the start and reset inputs. Use an ICEO of 10 µA and a VCE (sat) of 0. 5 V or less for transistor control. When connecting an external resistor to the Timer, connect it between terminals 21 and 23, and open terminals 21 and 22. Power supply (terminals 1 and 24) (See note 1. ) Start input (terminals 1 and 6) (See note 2. ) OFF-delay Operation Turn ON the power and apply a start input (short terminals 6 and 1). · Do not run leads parallel to power lines and keep the leads shorter than 2 m to minimize the effects of external noise. · The characteristics diagrams represent typical data. The factory set operating time may not always be uniform from one product to another. A variable resistor is recommended if more precise time adjustments are required. The operating time is slightly longer than the set time as the length of the lead increases. Operating time (%) 120 Operating time (%) Refer to the following characteristics diagrams when using an external resistor. H3FA-A/-SA/-AU/-SAU 100 H3FA-B/-SB/-BU/-SBU 120 100 80 80 60 60 40 40 20 20 0 0. 5 1 1. 5 External resistor (M) 0 1 2 3 4 External resistor (M) Extending the Reset Time DIP Timers have a shorter reset time than that of conventional timers for use in solid-state circuit applications. To extend the reset time to that of conventional timers, i. e. , about 100 ms, during operation, connect the Timer to a capacitor from the table as shown in the following diagram. The reset time after the set time has elapsed will vary with the load relay, so select an appropriate capacitor for the load relay. Rated voltage 12 V DC 24 V DC 5 and 6 V DC Capacitor capacity 10 µF, 25 V 4. 7 µF, 50 V 22 µF, 16 V 24 23 22 21 C 1 2 3 4 Solid-state Timer H3FA 7 Dimensions Note: All units are in millimeters unless otherwise indicated. H3FA-A, H3FA-B, H3FA-SA, H3FA-SB Mounting holes (Top view) H3FA-A/-B Twelve, 1. 0 dia. holes Applicable Connecting Socket Standard 24-pin IC socket can be used to mount the Timer. (OMRON equivalent: XR2A-2401-N) H3FA-AU, H3FA-BU, H3FA-SAU, H3FA-SBU Mounting holes (Top View) H3FA-AU/-BU H3FA-SAU/-SBU Applicable Connecting Socket Standard 24-pin IC socket can be used for mounting the Timer. [. . . ] 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. Take all necessary steps to determine the suitability of the product for the systems, machines, and equipment with which it will be used. Know and observe all prohibitions of use applicable to this product. 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. Disclaimers CHANGE IN SPECIFICATIONS Product specifications and accessories may be changed at any time based on improvements and other reasons. [. . . ]