Free
8 min
Wiring 1 — 24 VDC Power Supply & Grounding
wiringpower-supply24vdcgrounding
Ready to build this?
Sign up free — no credit card required. This scenario is included in the free tier.
Sign up to play this scenario →Already have an account? Log in
Briefing
Every industrial control panel starts with power. Your 24 VDC SMPS (Switch-Mode Power Supply) has three output terminals: - **+V** — the positive 24 V bus - **-V / 0 V** — the DC common (0 V reference) - **PE** — protective-earth chassis bond Wire each terminal to its matching bus-bar. Until power is correctly distributed, nothing else in the panel will work.
Objectives
- Wire +V terminal to the +24 V bus bar
- Wire 0 V terminal to the 0 V bus bar
- Bond the PE stud to the ground bus bar
Hints
- Check the polarity markings on the PSU face-plate before you wire.
- The PE (ground) bond is a safety requirement, not optional — always green/yellow wire.
I/O Table
Inputs
PSU_POS+24 V output terminal
BOOL · %I0.0
PSU_NEG0 V / common terminal
BOOL · %I0.1
PSU_PEProtective Earth (PE) bond
BOOL · %I0.2
Related scenarios
Ready to build this?
Sign up free — no credit card required. This scenario is included in the free tier.
Sign up to play this scenario →Already have an account? Log in