How to read a control schematic: trace paths instead of memorizing
Trace control circuits from supply to coil, recognize tags and NO/NC contacts, and compare Start–Stop states.
Read clearly. Open a sample circuit. Try it now.

An A–Z EleRun guide to drawing, Run, Check, Signals, preliminary BOQ, exports, sharing and embedding.
11 articles
Trace control circuits from supply to coil, recognize tags and NO/NC contacts, and compare Start–Stop states.
Compare contactors and interposing relays through coils, contacts, loads, and protection, and learn what to check before device selection.
Understand normally open and normally closed contacts, resting states, terminal numbers, and a two-lamp exercise in EleRun.
Learn ON-delay with a lamp that lights after three seconds: wiring, EleRun settings, and common faults.
Follow star–delta stages, distinguish timing intervals, check motor suitability, and avoid simultaneous star/delta closure.
Read reversing current paths, KM1–KM2 holding and interlocks, mechanical interlocking, and five EleRun tests.
Use Draw, Run, and Check in EleRun to build circuits, test Start–Stop, locate faults, and verify each fix.
Stops on Start release, will not stop, or starts on power-up? Find the right branch and fix each holding-circuit fault.
Understand holding through clear current paths, a diagram, and six scenarios to test yourself.
Draw your first EleRun control circuit step by step: select devices, connect wires, and test Start–Stop.