REXROTH PPC-R22.1N-T-NN-P1-NN-FW – Rack-Mount Motion/Logic Controller for Multi‑Axis SERCOS Systems

The REXROTH PPC-R22.1N-T-NN-P1-NN-FW is a rack-mounted Process & Path Control unit designed for coordinated multi-axis motion over SERCOS. From my experience, this family is a staple in packaging, printing, woodworking, and general assembly lines where synchronized drives and deterministic timing matter. The “-FW” suffix typically means the firmware is supplied separately, so you get the exact function set your machine needs without paying for extras.

One thing I appreciate is how the PPC-R series combines motion and PLC-style logic in a compact rack format. You might notice that most installations pair it with Indramat/EcoDrive or DIAX drives over a fiber SERCOS ring, while field I/O rides on PROFIBUS-DP depending on the option set—in this case the “P1” variant is commonly associated with PROFIBUS capability.

Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week when in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment prior to delivery
• Express options: FedEx, UPS, DHL

Typically we pre-test modules with a simulated SERCOS ring and verify basic I/O communications before shipment. Customers tell us it cuts commissioning time because the unit arrives with the right firmware image and parameters preloaded when specified.

Key Features

• Multi-axis SERCOS motion control – Coordinated motion for multiple servo axes using an optical SERCOS ring; ideal for camming, gearing, and interpolated moves.
• Integrated logic control – Combines motion sequencing with PLC-style logic so the machine program stays unified and easier to maintain.
• P1 variant with PROFIBUS-DP (option-dependent) – In many cases, the P1 code indicates PROFIBUS for distributed I/O or HMI gateways; reduces cabinet wiring.
• Service/diagnostic serial port – Handy RS‑232 service access for parameterization, trace, and quick troubleshooting.
• Firmware supplied separately (-FW) – Load only the motion/technology firmware you need, which keeps maintenance clean and predictable.
• Rack-mounted design – Slides into a Rexroth rack for neat cabinet builds and straightforward module swaps.
• Stable in industrial environments – Typically rated for enclosed control cabinets with standard plant 24 VDC, good for continuous-duty production.

Technical Specifications

Related or Supporting Products

• REXROTH PPC-R22.1N-T-NN-P2-NN-FW – Similar controller with an alternative fieldbus option set (often used when different I/O networks are required).
• REXROTH PPC-R11.x series – Earlier hardware generation, suitable as a cost-sensitive drop-in for legacy machines.
• REXROTH DKC01.1 / EcoDrive or DIAX servo drives – Common SERCOS-driven axes used with PPC controllers.
• SERCOS fiber optic cables and repeaters – For closing the SERCOS ring with correct attenuation and bend radius.
• PROFIBUS‑DP remote I/O modules – Digital/analog expansion over the P1 PROFIBUS interface where applicable.
• Memory/firmware card for PPC – For storing firmware and machine parameters; typically ordered to match your firmware option.

A packaging OEM told us they swapped an older PPC-R11 out for this R22.1 variant and immediately got steadier cam profiles at high speed. Not night-and-day, but enough to smooth product handling and trim downtime by a few minutes a shift—which adds up.

Installation & Maintenance

• Cabinet & environment – Mount in a closed, ventilated control cabinet. Maintain ambient +5 to +45 °C, non‑condensing. Keep fiber runs protected and below minimum bend radius.
• Power & grounding – Provide a clean 24 VDC supply with proper protective earth. Separate grounds for power and shields typically reduces noise.
• Wiring – Use certified SERCOS fiber connectors; avoid tight loops and mixed fiber grades. For PROFIBUS, terminate correctly at both ends and keep stubs short.
• Firmware & backups – Load the approved –FW firmware and back up parameters to the memory card. Keep a spare card on site; it saves time when swapping hardware.
• Routine checks – Inspect connectors quarterly, clean dust filters, verify SERCOS diagnostics (ring closed, telegram quality), and review alarms. Update firmware during scheduled downtime only.
• ESD & safety – Observe ESD precautions when handling the module. Power down and lock out before inserting/removing from the rack.

Quality & Certifications

• CE conformity for industrial control equipment (typical for Rexroth PPC series)
• UL/cUL listings common on many variants used in North America
• Manufacturing aligns with ISO-based quality systems
• Warranty: 12 months (365 days) from delivery

If you share your fieldbus preference and number of axes, we can prepare the correct firmware set and accessories so the PPC-R22.1N is ready to slot into your cabinet—usually with a one-week turnaround when in stock.