Schneider Electric BMXCPS3500

(BMXCP53500 is an incorrect model number)

1. Aufschlüsselung des Modellcodes

2. Produktübersicht

Das Schneider BMXCPS3500 ist ein Hochleistungs-AC-Netzteilmodul für die Modicon X80-Plattform, Speziell für die programmierbaren Automatisierungssteuerungen Modicon M340 und M580 entwickelt (PAC) Gestelle. Es bietet einen stabilen Gleichstromausgang zur Stromversorgung der Rückwandplatine, I/O-Module, CPU, und Feldsensoren.

3. Wichtige technische Spezifikationen

4. Betriebsumgebung & Anwendungen
5. Industrielle Automatisierungssysteme: PLC control systems in manufacturing, process industries, Infrastruktur, usw.
6. Harsh Industrial Environments: Resistant to wide temperature ranges, Spannungsschwankungen, and electromagnetic interference.
7. Medium-to-Large PLC Systems: Supplies stable power for multi-module configurations, supporting expanded I/O and complex control tasks.
8. Global Deployment: Wide input voltage design compatible with power grid standards worldwide.
9. Ersatzmodelle & Serienvergleich

Complete Model List of X80 Series Power Supply Modules

Ersatz & Kompatibilitätsinformationen

Direkter Ersatz: BMXCPS3500 can replace legacy M340 series power supply modules.

Compatible Racks: BMXXBP0600, BMXXBP0800, BMXXBP1200, and other X80 series backplanes.

Incompatible: BMEXBP series backplanes (dedicated for EcoStruxure Control Expert platform).

6. Official Ordering Code & Dokumentation

Official Ordering Code: BMXCPS3500 (standard version with no suffix)

Offizielles Handbuch: Schneider Electric SQD-BMXCPS3500.PDF

Zertifizierungen: CE, RCM, Merchant Navy, CSA, EAC, UL; konform mit EN 61131-2, IN 61000-6-4, usw.

7. Engineering Implementation Recommendations
8. Installationshinweise

Install the power supply module on the far left of the rack (recommended position).

Allow sufficient space for heat dissipation; avoid adjacent placement with high-power modules.

Use shielded cable for input power to reduce electromagnetic interference.

2. Verkabelungsnormen

Correctly connect live (L), neutral (N), and protective earth (PE) Drähte.

Separate sensor power and I/O power terminals to avoid cross-connection.

High-current loads should be powered directly from external sources to reduce module load.

3. Auswahlrichtlinien

Select the appropriate power supply based on total system power requirements, with 20–30% power margin.

Consider on-site power quality; install surge protectors and filters if necessary.

The Schneider BMXCPS3500 is a highly reliable, high-efficiency industrial power supply module that provides a complete power solution for the Modicon X80 platform. Its wide input voltage, multi-channel output, and comprehensive protection make it an ideal choice for medium-to-large PLC systems. If you need to verify BMXCP53500, please confirm the correct model number or contact Schneider Electric technical support for more information.

BMXCPS3500 is an isolated AC/DC switching power supply

that provides stable multi-channel 3.3V and 24V DC power for M340/M580 PLC racks. Its core operation consists of 5 stages:

1. Input Processing (AC → High-Voltage DC)

Eingang: 100–240 V Wechselstrom (50/60 Hz)

EMI filtering: suppresses grid surges and high-frequency interference

Rectifier bridge: converts AC to pulsating high-voltage DC (ca. 310In DC)

Capacitive filtering: smoothes into stable high-voltage DC

2. High-Frequency DC/DC Conversion (Core Stage)

PWM controller drives MOSFET high-frequency switching (tens of kHz)

High-frequency transformer:

Provides input-output electrical isolation (3000V und)

Converts high-voltage DC into multi-channel low-voltage high-frequency pulses

3. Output Rectification & Filtering

Secondary high-frequency pulses → Schottky diodes / synchronous rectification → DC

LC filtering: smoothes ripple to produce clean, stable voltage

4. Multi-Channel Regulated Output (Unique to BMXCPS3500)

3.3In DC / 4.5A: powers CPU, backplane bus, and I/O logic

24In DC / 1.3A: main power for rack I/O modules

24In DC / 0.9A: dedicated sensor power (isoliert, independent current limiting)

5. Closed-Loop Regulation + Schutzmechanismus
6. Voltage Regulation

Output voltage sampled via voltage division → compared with internal reference

PWM duty cycle dynamically adjusted to maintain constant output voltage

2. Integrated Comprehensive Protection

Überspannung / undervoltage protection (input and output)

Überlast / Kurzschlussschutz (per-channel current limiting, hiccup recovery)

Overtemperature protection (power reduction or shutdown at excess temperature)

Internal fuse

3. Status & Alarm

Front-panel READY LED: ON in normal operation, flashing in fault condition

Passive alarm relay:

Normal: contacts closed

Power loss / fault / overtemperature: contacts open (can connect to PLC or audible-visual alarm)

RESET-Taste: manually restarts the rack and resets faults

6. Overall Operating Principle (Zusammenfassung)

Mains AC → Rectification & Filtering → High-Frequency Isolated Switching → Multi-Channel Rectification & Filtering → Closed-Loop Regulation → Distribution to CPU / E/A / Sensors via Backplane, with full protection and status monitoring.

7. Typical Application Sequence
8. Power-on → Input filtering and rectification
9. Control circuit startup → PWM begins operation
10. Outputs gradually establish → Regulation locks in
11. READY LED illuminates → Alarm relay energizes → CPU startup enabled
12. Fehler (Überstrom / overtemperature / power loss) → Outputs shut off immediately → Alarm relay de-energizes → Fault indication