how can we represne the analog signal and digital signal if
want to measure the speed and we have to use PLC
Answers were Sorted based on User's Feedback
Answer / hmt
convert the analog signal to digital signal using A/D
converter and give the resultant to PLC data lines
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / guest
You are right Hmt,but you are giving the digital signal only
read the question carefully
Digital Signal :- for this purpose use zero speed controller
to measure the 0-1400RPM.
in this controller there is one delay & one instant contact
The proximity switch sense 0-200RPM speed gives signal to
Controller ,controller gives the instant relay contact to
PLC as Digital signal as Motor is Runing if motor reach to
the statable speed with the time period the controller give
the delay contact to PLC as digital signal.
Analog Signal:- For the purpose use encoder inside the motor
shaft with give conitious pulse with every roation in the
form of (4-20mA & 0-10v)with respective to )-1400RPM or
whatever speed we configure to PLC as Analog Signal
Is This Answer Correct ? | 0 Yes | 0 No |
either water sensor or flow meter,how we observe the water level, f any other equipment are in market ?
what bridge circuit is used in Tandelta circuit
what is th basic difference between a d latch time line and a d flip flop time line???
what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker
WHAT IS VFD,FUNCTION, PURPOSE,
How to size Air Circuit breaker (ACB)? What is the most important factors?
why we use the fuse in only one wire? althrough in ac current the current flows in both directions. why the neutral wire can be taken half the magnitude of phase wire while same current returns from neutral wire?
how can we chacke adiod in a circuit
Why the transmision line are 11,33,63,132kv?
what is the purpose of interpose t/f in control and relay ckts?
what is meant by motor protection relay & its working principle ?k
How can we parallel two transformer with vector gorup YNd11 and YNd1?How is connection two transformer GT?