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1.) (10) Draw a holding circuit on a ladder logic rung. Label the components with “Start”,...
2) Draw a ladder logic diagram with brief explanation for each rung for the following operation: At the instant shown, the piston is fully retracted A momentary switch is used to activate solenoid valve A. Once the piston reaches limit switch LS-1, it deactivates the valve after 10 sec. This cycle runs only once each time the momentary switch is pressesd and released. The system should only run 5 cycles in total and then stop. A light should be on...
Draw a ladder logic circuits that implement the logic functions shown. Label the inputs and output of the ladder contacts and coils to match the logic circuit. 2 4 3
For the temperature control program shown, rung No. 1 contains the logic that: Ladder logic program Ti HEATER E Oon 03 01 LED-8 LEO . LESS THAN OR EQUAL Gr A Thermococca internal LED D 0302 OLO GREATER THAN OR E 595 L detects When the temperature oroos below the low set point. allows the thermocouple temperature to be monitored by the LED display board detects when the temperature rises above the high set point Switches the hester on and...
A baking oven conveyor system (to bring raw dough through an oven to bake bread) needs the ladder logic to be built for proper function. Here is the sequence of events: a. A Conveyor Motor relay output will start (and will be latched/set on) when a normally open pushbutton (Start Conveyor) or a normally open sensor (Package Sensor) energizes. A normally closed E-Stop (Emergency Stop) push button that is not energized is in series with the aforementioned circuit components. b....
1. A typical motor speed control circuit that is controlled by an analog current loop will have a current of A. 2-20 mA B. 5-50 mA C. 0-10 mA D. 4-20 mA. 2. What is the purpose of thermostat number 2, IN7, in the mixing vat machine? A. This thermostat is used to prevent an over-temperature condition in the event thermostat one sticks open. B. This thermostat is used to shut off the heater when the chemical mix reaches setpoint...
1. Draw the power and control drawings to start a three phase induction motor using "three wire" control. Be sure the STOP button is first on the control rung and the OL contact is the last item on the control rung. The Green Light should also be on when the motor is on. 1. Draw the power and control drawings to start a three phase induction motor using "three wire" control. Be sure the STOP button is first on the...
2. Given push buttons (A and B), coil relays (CR1 and CR2) and LED Light indicator, a) complete the truth table for the following relay logic circuit, and then b) complete a truth table for the same circuit, but when relay coil 2 failed open: (10pts) し2 CR1 CR2 CR1 CR2 Indicator True Table (Good Circuit) Output True Table (With Fault) B Output 0 0 0 0 1 0 0 2. Given push buttons (A and B), coil relays (CR1...
Given the practical circuit below, draw the Ladder Logic diagram you would expect to see for this circuit. Yes, there should be variations from each of your answers 6. 120 V 120 V 120 V Lamp B AR BR LR Neutral Given the practical circuit below, draw the Ladder Logic diagram you would expect to see for this circuit. Yes, there should be variations from each of your answers 6. 120 V 120 V 120 V Lamp B AR BR...
1. Stop switches are always in _______ with each other and start switches are always in _______ with each other, both in ladder logic diagrams and in actual hard wiring. A. series, parallel B. parallel, parallel C. parallel, series D. series, series 2.You notice a pushbutton switch symbol on a ladder diagram that has an arc-shaped line over its vertical line. The arc-shape represents a A. selector switch. B. rotary switch. C. mushroom head. D. rocker switch. 3.In a typical...
You need to make a motor turn on and turn off for the following conditions: If the operator wants it to start and run continuously until he stops it If the operator wants it to start and stop based on a pressure. Start it at 10psi, stop it 30psi. Draw the motor control schematic for hardwired relay control using pressure switches Draw the PLC ladder logic diagram using pressure switches as digital inputs