Draw ladder diagram to open gate after momentary closure

Assignment Help Electrical Engineering

Reference no: EM13288107

A reversible motor is used to open and close a gate. The motorhas three terminals: L1A, L1B, and L2. When L2 is connected toground and power is applied to L1A, the motor runs in theclockwise, CW, direction, opening the gate. When power is appliedto L1B, the motor runs in the counterclockwise, CCW, direction,closing the gate. The gate has two limit switches: LS1 is activatedwhen the gate is closed, and LS2 is activated when the gate isopen. Each limit switch has one normally open, NO, contact and onenormally closed, NC, contact. Two control relays, CR1 and CR2, areused in the gate control circuit. These relays have two NO contactsand two NC contacts. A NO pushbutton START switch is used toinitiate the opening of the gate.
Draw a ladder diagram that will open the gate after amomentary closure of the START switch, close the gate immediatelyafter the gate is fully open, and turn off the power to the motorwhen the gate is closed. Your circuit must include an interlock feature that will not allow simultaneous application of power to onL1A and L1B.

Reference no: EM13288107

Questions Cloud

Determine the maximum height the rock reaches : One side of the roof of a building slopes up at 37.0°. A roofer kicks a round, Determine the maximum height the rock reaches above the point where it was kicked

Explain oxygen in lakes high in the rocky mountains : The solubility of oxygen in lakes high in the rocky mountains is affected by the altitude. If the solubility of O2 from the air is 2.67 x 10^-4 M ar sea level (1.00 atm) and 25 degrees C

What is the net force exerted on the car : during a racing event a 110 kg car accelerates from 0 to 29 m/s in 4.3 seconds. what is the net force exerted on the car

Define calculate the value of ksp : For the Ca2+ and F- ions, write the mathematical relations defining activity of each ion in terms of its concentration and activity coefficient. e) Based on your answers above, derive a relationship for Ksp' in terms of Kspo and activity coefficie..

Draw ladder diagram to open gate after momentary closure : Each limit switch has one normally open, NO, contact and onenormally closed, NC, contact. Two control relays, CR1 and CR2, areused in the gate control circuit. These relays have two NO contactsand two NC contacts. A NO pushbutton START switch is u..

How long will it take to double your money : If you deposit money today in an account that pays 12.5% annual interest, how long will it take to double your money? Round your answer to two decimal places.

State the following reaction : Consider the following reaction- 2 A(g) + B(g) 3 C(g) + D(g) please determine Kc if 6.0 moles of A is added to 6.0 moles of B in a 2.0 L yields 0.10 moles of D at equilibrium.

What annual interest rate must they earn : What annual interest rate must they earn to reach their goal, assuming they don't save any additional funds? Round your answer to two decimal places.

Calculate value of each investment based on required rate : Assume Emerson Electric's managers expect an earnings downturn and a resulting decrease in growth of 3 percent. How does this affect your answers to parts a and b?

User Account

All Pages