Circuit Analyzer — Contact Logic
← FIELD MANUAL

Circuit Analyzer

// Click switches to toggle — watch current flow — understand NO/NC behavior
Load: OFF
Current: 0A
24V
DC
LOAD

Circuit Analysis

Select a circuit type to begin analysis.

NO — Normally Open

Open when de-energized
Closes when energized
Symbol: —| |—

NC — Normally Closed

Closed when de-energized
Opens when energized
Symbol: —|/|—

Series vs Parallel

Series: AND logic
Parallel: OR logic
Mixed: Complex logic

// Troubleshooting Guide

NO CURRENT FLOW:
1  Check power source voltage
2  Verify all series contacts are closed
3  Look for open circuits in wiring
4  Test continuity through each component

UNEXPECTED CURRENT:
1  Check for parallel paths (sneak circuits)
2  Verify NC contacts are actually open
3  Look for short circuits
4  Check for voltage backfeed

INTERMITTENT OPERATION:
1  Loose connections
2  Contact bounce or chatter
3  Mechanical wear in switches
4  Environmental factors (temp, vibration)