plc se star delta wiring /Star Delta Automation PLC/PLC Star Delta Power Wiring/PLC Se Motor Start

Описание: PLC Se Star Delta Controlling & Power Wiring Kaise Kare | Star Delta Starter PLC Hindi

📝 YouTube Description (SEO Hindi)

Is video me hum aapko PLC se Star Delta Motor Controlling aur Power Wiring step-by-step samjhayenge.
Aap jaanenge Star Contactor, Delta Contactor, Timer Logic, PLC Input Output Mapping aur 3 Phase Induction Motor ko PLC ke through kaise control kiya jata hai.
[2:29 pm, 11/1/2026] Gk Electricals Trading Co: PLC Star-Delta Ladder Logic – Basic Concept

Star-Delta control me motor pehle STAR me start hoti hai, phir delay ke baad DELTA me shift hoti hai taaki starting current kam rahe.

🔹 Required Inputs (PLC INPUT)

I0.0 – START Push Button (NO)

I0.1 – STOP Push Button (NC)

I0.2 – Overload Relay (NC)

🔹 Required Outputs (PLC OUTPUT)

Q0.0 – Main Contactor (MC)

Q0.1 – Star Contactor (SC)

Q0.2 – Delta Contactor (DC)

🔹 Timer

T1 – Star to Delta Timer (ON Delay, 5–10 sec)

🧩 RUNG-WISE LADDER LOGIC EXPLANATION
🔸 RUNG 1 – Start / Stop & Seal-in Circuit

START (I0.0) press karte hi
Main Contactor (Q0.0) ON ho jata hai
Aur self-hold / latch ban jata hai.

➡ STOP ya Overload aate hi circuit OFF.

🔸 RUNG 2 – Star Contactor Control

Jab Main Contactor ON hota hai
aur Timer T1 complete nahi hua,
tab tak Star Contactor (Q0.1) ON rehta hai.

👉 Motor STAR connection me run karti hai.

🔸 RUNG 3 – Timer Operation

Jaise hi Main Contactor ON hota hai,
Timer T1 start ho jata hai (for example 7 sec).

⏱️ Timer ka kaam:
STAR se DELTA shift ka delay dena.

🔸 RUNG 4 – Delta Contactor Control

Jab Timer T1 complete ho jata hai,
aur Star Contactor OFF ho jata hai,
tab Delta Contactor (Q0.2) ON hota hai.

👉 Motor DELTA connection me full speed pe chalti hai.

🔸 INTERLOCK LOGIC (MOST IMPORTANT)

🚫 Star aur Delta kabhi bhi ek sath ON nahi hone chahiye

Iske liye:

Star rung me Delta ka NC contact

Delta rung me Star ka NC contact

Lagaya jata hai