Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Mechanical Engineering Expert

A machine tool in a manufacturing cell is driven by the 3-phase a.c. motor controlled by the inverter. Before the inverter receives a RUN signal from a PLC, the given conditions should be met:

a) The work piece is to be in its initial position in chuck. (WPI)

b) The lubrication pressure is to be 5 bar or above. (LUB)

c) No movement is to have been noticed in the cell for 1 minute. (SAFE)

d) The pre-start inverter self-test routine is to be suitable. (TEST)

e) The motor should be stationary, that is, the motor speed signal is to be zero. (RPM0)

f) The manufacturing cell door is to be shut. (DOOR)

When the above conditions are met the PLC is to output a RUN signal to the inverter. The output is to be from a rung dedicated to the outputs. The memory element on this rung is to be activated through memory cell MC1.

The output rung is as well to control an output to the manufacturing cell door bolt solenoid.

Memory cell MC1 is to remain on till one of the given takes place:

a) Motor speed surpasses 1000 rpm. (RPM1000)
b) Emergency stop button is pressed. (EMER)
c) Lubrication pressure drops below 5 bar. (LUB)
d) A signal pointing out the end of machining is received. (END)

Whenever memory cell MC1 goes high, the given occur:

a) MC1 is to receive a hold in supply.
b) The inverter is to receive a RUN signal. (RUN)
c) The manufacturing cell door is to be locked through a solenoid-operated bolt. (LOCK)

Draw a ladder diagram to symbolize the software program which must be installed in the program memory of the PLC. Recognize the elements on the rungs by abbreviations.

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M910074

Have any Question? 


Related Questions in Mechanical Engineering

1 what are modes of failure2 what are failure criteria how

1. What are modes of failure? 2. What are failure criteria? How are they related to modes of failure? 3. What is meant by the term factor of safety? How are factors of safety used in design?

The shear-force diagram for a beam is shown assuming that

The shear-force diagram for a beam is shown. Assuming that only forces (not applied moments) act on the beam, determine the beam's loading and draw the bending moment diagram

A watertight bulkhead 22 ft high forms a temporary dam for

A watertight bulkhead 22 ft high forms a temporary dam for some construction work. The top 12 ft behind the bulkhead consists of sea water with a density of 2 slugs/ft 3  , but the bottom 10 ft begin a mixture of mud and ...

It has been suggested that the control software for a

It has been suggested that the control software for a radiation therapy machine, used to treat patients with cancer, should be implemented using N-version programming. Comment on whether or not you think this is a good s ...

Name at least three reasons why some bolts fail

Name at least three reasons why some bolts fail mechanically? What is the most common cause of bolted joint misbehavior or failure? Name at least two problems that can be caused by overtightening the bolts? What do we me ...

The stepped shaft rotates at 120 rpm and has a 20 kw input

The stepped shaft rotates at 120 rpm and has a 20 kW input at A. 16 kW is taken off to operate machinery at B, and the remaining 4 kW is used at C. The shaft is stainless steel with yield strength in shear of 300 MPa. a. ...

A beam with a rectangular cross section has dimensions as

A beam with a rectangular cross section has dimensions, as defined in Fig. 8.13, of b = 40and t = 10 mm. The beam is made of 7475-T7351 aluminum and is subjected to a bendingmoment of M = 900 N·m. (a) If a through-thickn ...

Leaning polea pole of negligible mass leans against a wall

Leaning pole A pole of negligible mass leans against a wall, at angle ? with the horizontal. Gravity is directed down (a) Find the constraint relating the vertical acceleration of one end to the horizontal acceleration o ...

1 a square gate 4 m by 4 m is located on the 45deg face of

1. A square gate, 4 m by 4 m, is located on the 45° face of a dam. The top edge of the gate is 8 m below the water surface. Determine the resultant force of the water on the gate, and the point through which it acts. 2. ...

A domestic food freezer maintains a temperature of - 15degc

A domestic food freezer maintains a temperature of - 15°C. The ambient air temperature is 30°C. If heat leaks into the freezer at the continuous rate of 1.75 kJ/s what is the least power necessary to pump this heat out c ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro