Pasaban MTC-3044 PLC Rack with Power Supply Card

The Pasaban MTC-3044 is a PLC rack (chassis) designed for Pasaban automation systems. It includes an integrated power supply card that provides the necessary DC voltages (typically +5V, +24V) to the CPU and I/O modules installed in the rack. The rack features multiple slots for inserting Pasaban MTC series I/O modules, analog modules, and communication cards. This assembly is used in industrial control cabinets for machinery such as printing presses, converting equipment, and packaging lines. The MTC-3044 is built for reliability in harsh environments, with a robust metal frame and DIN rail mounting capability.

Technical Specifications

The rack has 4 slots for I/O modules (models MTC-30xx). The power supply card is rated for input 100-240V AC, 50/60Hz, and provides outputs +5V DC (5A) and +24V DC (2A). The backplane uses a passive parallel bus with 32-pin connectors. Dimensions: 280 mm (W) × 160 mm (H) × 150 mm (D). Weight: 3.5 kg. Power consumption: 60W max. Protection: Overvoltage, short-circuit, and overtemperature on power supply. Operating temperature: 0°C to 55°C. Storage: -20°C to 70°C. The rack has mounting holes for backplate installation or DIN rail clips (optional).

Key Features

• 4-slot rack for Pasaban MTC series modules

• Integrated power supply unit (100-240V AC input)

• Provides +5V and +24V DC rails

• Passive backplane with standard edge connectors

• Rugged metal construction

• Status LEDs for power and fault

• Cooling: natural convection (no fan)

• Compatible with Pasaban CPU and I/O modules

Compatible Modules

The MTC-3044 rack accepts Pasaban MTC-3xxx I/O modules, including digital input (MTC-3001), digital output (MTC-3002), analog input (MTC-3021), analog output (MTC-3022), and CPU modules (e.g., MTC-3040 CPU). Also compatible with older Pasaban 40-pin I/O cards. Check the module's label for compatibility. The rack's power supply card is non-removable; if the power supply fails, the entire rack assembly is replaced.

Installation

Mount the MTC-3044 horizontally on a DIN rail or directly to the cabinet backplate using M5 screws through the mounting ears. Ensure adequate clearance (50 mm above and below) for heat dissipation. Connect the AC input (L, N, PE) to the screw terminals on the power supply card (accessible from the rear or bottom). Insert modules into the slots, aligning the guides, and press firmly to seat the edge connectors. Secure each module with front panel screws. Connect external wiring to the modules’ terminal blocks. Power on the system; the power LED should illuminate green. If the power LED is red, check for overload or short circuit on the backplane.

Applications

The MTC-3044 rack is used in Pasaban PLC-based control systems for industrial machinery. Typical applications include web tension controls, slitter-rewinders, printing presses, and paper converting lines. The integrated power supply eliminates the need for external power supplies, simplifying cabinet wiring.

Maintenance and Troubleshooting

If the rack fails to power up, check the AC input fuse (external or internal). If the +5V LED is off but AC present, the power supply card may have failed. The rack is not field-repairable; replace the entire unit. Keep the rack clean from dust. No other maintenance required.

Environmental and Compliance

The MTC-3044 is CE marked and RoHS compliant. Operating temperature: 0-55°C. Humidity: 10-90% non-condensing. Protection rating: IP20.

Conclusion

The Pasaban MTC-3044 PLC rack with integrated power supply provides a compact, ready-to-use chassis for Pasaban MTC series automation systems. Its 4-slot capacity and built-in power supply make it suitable for small to medium control applications.