ABB 1KHW001356R0001 P4RX Migration-Ready EMC Filter

Overview

ABB 1KHW001356R0001 P4RX Migration-Ready EMC Filter for Legacy ACS Drives

The ABB 1KHW001356R0001 P4RX is a frame-size P4RX EMC filter module engineered for electromagnetic compatibility compliance in ABB ACS series variable frequency drive installations. As legacy ACS400, ACS550, and ACS600 drive systems approach end-of-life or require regulatory re-certification, the 1KHW001356R0001 P4RX provides a verified, migration-ready replacement path that preserves existing cabinet layouts, minimizes rewiring effort, and maintains CE/EMC conformity without requiring a full drive system overhaul.

This filter is specifically designed to suppress conducted radio-frequency interference on the mains input side of the drive, meeting IEC 61800-3 Category C2 requirements. For retrofit engineers managing aging automation infrastructure, the 1KHW001356R0001 P4RX eliminates the need to redesign EMC suppression stages when upgrading from discontinued filter variants or when replacing failed units in production-critical environments.

Migration Compatibility Table

Retrofit Planning for Existing Automation Systems

Successful integration of the 1KHW001356R0001 P4RX into a legacy automation system requires a structured pre-retrofit assessment. Begin by auditing the existing control cabinet for available mounting depth and width clearance in the P4RX footprint zone. In many ACS550 and ACS600 installations, the EMC filter is mounted directly below or adjacent to the drive chassis on a shared DIN rail or backplate — confirm that the replacement filter’s flange dimensions match the existing bolt pattern before ordering.

On the power supply side, verify that the upstream circuit breaker or fuse rating is compatible with the filter’s rated current and that the mains cable cross-section meets the terminal torque specifications. When the existing installation uses an ABB ACH550 or ACS800 drive alongside a SNAT 601 TAI or SNAT 755 PAC power supply module, the filter’s leakage current must be evaluated against the residual current device (RCD) sensitivity to prevent nuisance tripping during startup.

For systems that also include an ABB RDCO-03 DDCS communication adapter or an RPBA-01 PROFIBUS adapter mounted on the drive’s option slot, the filter replacement does not affect fieldbus addressing or parameter mapping — the drive’s parameter set, including motor control mode, speed reference scaling, and fault history, remains intact. However, if the retrofit is part of a broader migration from ACS600 to ACS880, engineers should also plan for the replacement of the NAMC-11 or NAMC-51 control board and the associated NDIO-01 digital I/O extension module, as these are not forward-compatible with the ACS880 platform.

In cabinet upgrades that involve I/O expansion, the addition of an AIMA-01 analog I/O extension or an RDIO-01 relay output module may require re-routing of signal cables away from the filter’s PE ground plane to avoid induced noise on low-voltage analog channels. Signal isolation barriers or shielded twisted-pair cabling should be used for any 4–20 mA or 0–10 V reference signals routed near the filter mounting zone.

Where the legacy system includes an ABB CP600 or CP400 HMI panel connected via Modbus RTU or Ethernet/IP, the HMI screen layouts and drive parameter read/write mappings do not require modification when only the EMC filter is replaced. This significantly reduces commissioning time and eliminates the need for HMI re-programming during a filter-only swap.

Downtime Control During System Migration

Minimizing production downtime during an EMC filter replacement on a live ACS drive system requires careful pre-staging and a disciplined lockout/tagout (LOTO) procedure. Before de-energizing the drive, capture a full parameter backup using the ABB Drive Composer or DriveWindow software tool connected via the OPCA-01 or USB-to-RS232 programming cable. This ensures that the motor control parameters, PID tuning values, speed ramp settings, and fault log are preserved and can be restored immediately after the filter swap without manual re-entry.

Once the drive is safely isolated and the DC bus has discharged (typically 5–10 minutes after power-off for P4RX frame drives), disconnect the L1/L2/L3 mains cables from the filter input terminals and label each conductor before removal. The 1KHW001356R0001 P4RX can then be unbolted from the cabinet backplate and the replacement unit installed in reverse order. Torque all terminal connections to the manufacturer’s specification and verify PE ground continuity with a low-resistance ohmmeter before re-energizing.

For systems where continuous process control is critical, consider pre-wiring the replacement filter on a temporary mounting plate and performing a bench-level insulation resistance test before the scheduled maintenance window. This approach reduces the in-cabinet installation time to under 30 minutes for experienced technicians, limiting the production impact to a single planned shutdown cycle. After re-energizing, run the drive through a no-load test cycle and verify that EMC compliance is maintained using a conducted emissions scan if regulatory re-certification is required.

Retrofit Support FAQ

Q1: Is the 1KHW001356R0001 P4RX a direct replacement for the previous ABB EMC filter on my ACS550 or ACS600 drive?
A: Yes, provided your existing drive is a P4RX frame size. The 1KHW001356R0001 P4RX is designed as a drop-in replacement for same-frame ABB EMC filter variants used on ACS400, ACS550, and ACS600 series drives. Verify the frame size designation on your existing filter label before ordering.

Q2: Will replacing the EMC filter affect my drive’s parameter settings, fieldbus address, or HMI configuration?
A: No. The 1KHW001356R0001 P4RX is a passive hardware module with no firmware or software interface. Replacing it does not alter the drive’s parameter memory, PROFIBUS or Modbus node address, or HMI screen mappings. A parameter backup is still recommended as a precaution before any cabinet work.

Q3: What pre-shipment testing is performed on the 1KHW001356R0001 P4RX?
A: Each unit undergoes functional continuity testing and insulation resistance verification prior to shipment. Units are inspected for terminal integrity, PE bonding point condition, and physical housing integrity. A test report is available upon request for quality-critical applications.

Q4: What is the support terms coverage and lead time for the 1KHW001356R0001 P4RX?
A: All units are covered by a support terms confirmed by quotation from the date of shipment against manufacturing defects and functional failure under normal operating conditions. Stock is maintained for prompt dispatch; typical lead time is 3–7 business days for standard orders. Contact admin@knmks.com or +86 18359268345 for urgent requirements or bulk order pricing.

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Product Identification

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ABB
ABB

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1KHW001356R0001 P4RX

Product Family

Variable Frequency Drives

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Available on request after model and quantity confirmation

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B2B RFQ, replacement inquiry and project spare-part request

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