Product Details
Configured for power distribution in M1 automation networks, the Bachmann NT255 (NT255 Power Module) provides direct physical and electrical execution of DC voltage conversion and backplane power regulation.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | NT255 |
| Brand | Bachmann |
| Origin | Germany |
| Dimensions | Standard M1 form factor |
| Power Consumption | Max 68 W |
| Supply Voltage | 18-34 VDC |
| Output Power | 45 W (55 W) |
| Buffer Time | 18 ms |
Profinet / EtherNet/IP Deterministic Networks
The NT255 regulates power delivery to the backplane bus, ensuring the stable voltage levels required for deterministic communication. The module performs continuous supply voltage monitoring, transmitting a power-fail signal to the processor module upon detecting an undervoltage condition. This signal allows the processor to initiate controlled shutdown procedures or transition states before the 18 ms buffer time is exhausted. Firmware flash compatibility and bus communication velocity remain dependent on the stable power provided by this module; thus, the electronic reverse polarity protection and starting current limitation (max 8 A) are integrated to prevent voltage transients from disrupting the backplane bus traffic.
Frequently Asked Questions
Q: What is the purpose of the 18 ms buffer time?
A: The buffer time ensures that the module can maintain output power for 18 ms in the event of an input power failure, providing a window for the CPU to save critical data and execute a safe system shutdown.
Q: Is the 7 A SMD wire fuse user-replaceable?
A: No. The SMD wire fuse is an internal component designed to protect against catastrophic device failure. The module must be returned to the manufacturer if the fuse is triggered.
Field Installation Guidelines
- Input Connections: Connect the 18-34 VDC supply to the module input terminals. Ensure that the power source is capable of handling the maximum 68 W power consumption.
- Grounding: Maintain a common reference ground for all connected modules to prevent ground loops that could interfere with the backplane communication.
- Cabling: Use appropriate gauge wiring to minimize voltage drop between the power supply and the NT255 module. Keep DC power cables away from high-speed data communication lines to prevent induced noise.
- Clearance: Ensure adequate ventilation around the module to prevent thermal accumulation, as the module dissipates heat proportional to its load.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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