In this lesson well examine a common industrial application of 2 wire control circuits known as a hand off auto circuit. How to wire a hoa hand off auto control circuit.
Hand Off Auto Circuits Full Lecture Youtube
Hoa switch wiring diagram. Instead properly understanding location of control and mode of control can solve the issue. Multiple uses of the hoa designation for the same device is a recipe for confusion both switches are labeled with the same function which makes it unclear exactly how the motor is going to be started. Start fiber optic transceiver class 9005 type ft fiber optic push button selector switch limit switch etc. The source is at the sw1 where the hot is connected to. This simple diagram below will give you a better understanding of what this circuit is accomplishing. They are operated by a toggle lever mounted on the front of the switch.
Wiring diagrams do not show the. 3 way switched outlet wiring. In this diagram two 3 way switches control a wall receptacle outlet that may be used to control a lamp from two entrances to a room. This site is merely. When wiring a 2 way switch circuit all we want to do is to control the black wire hot wire to turn on and off the load. Control wiring 2 wire control onoff circuit.
The circuit shown in figure 271 permits a motor to be operated by a float switch or to be run manually. Black wire power or hot wire white wire neutral bare copper ground. Well discuss the devices that make up a hand off auto circuit and how. This circuit is wired the same way as the 3 way lights at this link. Wiring a single pole light switch. Fiber optic cable electrical connections boundary seal to be in accordance with article 501 5.
Industrial switch types toggle push button selector switch etc. Control wiring sinking and sourcing npn pnp devices and plc inputs. Hand off automatic controls are used to permit an operator to select between automatic or manual operation of a motor. Three wire cable runs between the switches and the outlet. Wiring diagram book a1 15 b1 b2 16 18 b3 a2 b1 b3 15 supply voltage 16 18 l m h 2 levels b2 l1 f u 1 460 v f u 2 l2 l3 gnd h1 h3 h2 h4 f u. Hand off automatic controls recognize hand off automatic switches on a schematic diagram.
Control wiring 3 wire control start stop circuit. Wiring diagrams m c w bulletin 600 bulletin 600 manual starting switches are designed for starting and protecting small ac and dc motors rated at 1 hp or less where undervoltage protection is not needed. Control wiring series and parallel wiring. This light switch wiring diagram page will help you to master one of the most basic do it yourself projects around your house. Hey doing it yourself is great but if you are unsure of the advice given or the methods in which to job is done dont do it. The switch is shown as a single pole.
Gallery of Hoa Switch Wiring Diagram
