PASABAN PLC Rack with MTC-3044 Power Supply Card - Stock 4835-A

The PASABAN PLC rack system, equipped with the MTC-3044 power supply card (stock number 4835-A), provides a robust foundation for modular programmable logic controller installations. This chassis and power combination ensures stable, noise-free power delivery to all inserted modules, supporting reliable operation in industrial environments.

Chassis and Backplane Features

The rack accommodates up to 12 slots for standard Eurocard-sized PLC modules, including CPU, I/O, communication, and special-function cards. The backplane is constructed with high-quality copper traces and includes passive or active termination for signal integrity. It supports both 5 V and 24 V power rails, with dedicated pins for each.

MTC-3044 Power Supply Specifications

The MTC-3044 is a switched-mode power supply card that converts 120/230 VAC input (selectable) to regulated 5 VDC at 20 A, and 24 VDC at 4 A. It includes overvoltage, overcurrent, and overtemperature protection. The card features a built-in cooling fan with speed control, and LED indicators for power-on and fault conditions. Efficiency is rated at 85% at full load.

Electrical and Environmental Ratings

Input voltage range: 85-264 VAC, 47-63 Hz. The supply complies with EN 61000-3-2 for harmonic distortion. Operating temperature: 0°C to 60°C, with derating above 50°C. Storage temperature: -20°C to 85°C. Humidity: 5% to 95% non-condensing.

Installation and Wiring

The rack is designed for 19-inch cabinet mounting, with dimensions of 3U height (133 mm) and 220 mm depth. The power supply card slides into the dedicated slot (usually slot 0) and connects to the backplane via a DIN 41612 connector. AC input terminals are accessible from the rear, and grounding points are provided for safety.

Compatibility with PASABAN Modules

This system is compatible with the full range of PASABAN PLC modules, including digital I/O, analog I/O, high-speed counters, and communication processors. It also supports third-party Eurocard modules that adhere to the same pinout and power requirements, offering flexibility for system upgrades.

Protection and Diagnostics

The MTC-3044 includes a reset switch and a remote inhibit function. Diagnostics are reported via front-panel LEDs and a relay contact for external alarm signaling. The supply also monitors output voltage and current, and can signal a warning when approaching limits.

Applications

Typical applications include medium-to-large scale industrial control systems, such as assembly lines, material handling, power generation, and water treatment plants. The rack's modularity allows for easy expansion and maintenance.

Maintenance and Reliability

Routine maintenance involves checking fan operation and cleaning dust filters. The power supply has a mean time between failures (MTBF) of over 100,000 hours at 25°C, ensuring long-term reliability. Spare power supplies can be hot-swapped in redundant configurations.

Compliance

The system meets CE, UL 508, and CSA standards. It is designed to withstand vibration up to 2 G and shock up to 15 G, as per IEC 60068.

In summary, the PASABAN PLC rack with MTC-3044 power supply (stock 4835-A) offers a dependable, scalable platform for building robust automation solutions, combining mechanical strength with electrical stability.