ABB CINT-45X1 Replacement Solution for AINT Series

Product Overview

ABB CINT-45X1 Replacement Solution for AINT Series: Smooth Transition from Legacy Drive Systems

The ABB CINT-45X1 is a drive interface board belonging to ABB’s AINT Series communication module family, designed for use within ACS800, ACS600, and related ABB industrial drive platforms. As legacy drive systems age and original CINT-45X1 units reach end-of-life or become increasingly difficult to source, plant engineers and procurement teams face mounting pressure to maintain uptime without committing to a full drive replacement. TOPNLMS supplies verified CINT-45X1 units — tested, inspected, and backed by a 12-month warranty — to support seamless migration from discontinued or failing drive interface boards with minimal disruption to your control architecture.

Whether you are replacing a failed board in an existing ACS800 drive cabinet, upgrading from an earlier AINT-Series variant, or consolidating spare parts inventory across multiple production lines, the CINT-45X1 provides a direct drop-in solution that preserves your existing wiring harness, cabinet layout, and drive program logic.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful CINT-45X1 migration rarely involves a single component. In most ACS800 and ACS600 retrofit projects, the drive interface board works in concert with several other modules that may also require inspection, replacement, or upgrade during the same maintenance window.

The AINT-Series RDCO-02C DDCS Communication Module is frequently replaced alongside the CINT-45X1 when the fiber optic communication chain between the drive and a master controller — such as an AC800M DCS controller or an ACS800 master drive — shows degraded signal integrity. Replacing both units simultaneously eliminates the risk of a secondary failure shortly after the primary repair.

For drives integrated into an ABB System 800xA or Freelance DCS environment, the NPBA-12 PROFIBUS Adapter Module or NIBA-01 InterBus Adapter may be installed in the drive’s fieldbus slot. These adapter modules communicate upstream to the DCS I/O bus while the CINT-45X1 manages the DDCS fiber link to the drive’s internal control board — both layers must be functional for the drive to respond to process commands.

In multi-drive cabinet installations, the AINT-Series APBU-44C Branching Unit distributes the DDCS fiber optic signal from a single master to multiple ACS800 slave drives. If the CINT-45X1 on one slave drive has failed, it is prudent to inspect the APBU-44C branching unit and the associated fiber patch cables for contamination or bend-radius damage before commissioning the replacement board.

The ACS800 RMIO-02 Main Control Board is the host board into which the CINT-45X1 plugs. In cases where the CINT-45X1 failure was caused by a transient overvoltage or a firmware incompatibility, the RMIO-02 itself may have sustained damage. A pre-commissioning check of the RMIO-02 firmware version and hardware revision ensures full compatibility with the replacement CINT-45X1.

Power quality within the drive cabinet is maintained by the APOW-01 Auxiliary Power Supply Module, which provides the 24 VDC rail for control electronics including the AINT slot. A degraded APOW-01 can cause intermittent CINT-45X1 faults that mimic board failure; verifying the auxiliary supply voltage before and after board replacement is standard commissioning practice.

For plants migrating from older ACS600 drives to ACS800 platforms, the AINT-Series AINP-01 I/O Extension Module provides additional digital and analog I/O points that can be mapped to the new drive’s parameter set, reducing the need to rewire field instruments during the upgrade. Combined with the CINT-45X1, this allows the new drive to replicate the I/O footprint of the legacy system.

Where the drive communicates with a Siemens S7 or Allen-Bradley ControlLogix PLC via PROFIBUS DP, the NPBA-12 adapter on the ACS800 and the corresponding DP slave address must be verified after CINT-45X1 replacement to confirm that the drive re-establishes its GSD-defined communication profile without requiring a full PLC program download.

Finally, for field commissioning and parameter backup, the ABB DriveWindow Light 2 software paired with an RUSB-02 USB-to-DDCS Adapter allows engineers to read drive fault logs, verify CINT-45X1 channel status, and upload saved parameter sets from a laptop — eliminating the need for a dedicated CDP control panel during the retrofit.

Retrofit Guidance FAQ

Q: Will replacing the CINT-45X1 require me to re-enter drive parameters?
A: No. The CINT-45X1 is a communication interface board and does not store drive application parameters. Parameters reside on the RMIO main control board’s memory. Swapping the CINT-45X1 does not affect the parameter set. However, it is best practice to back up parameters via DriveWindow or the CDP panel before any board-level intervention.

Q: Are the fiber optic connectors on the CINT-45X1 compatible with my existing DDCS cables?
A: Yes. The CINT-45X1 uses standard HFBR-type plastic optical fiber (POF) connectors on channels CH1, CH2, and CH3. These are identical to those used on predecessor AINT-Series boards. Clean the fiber ends with a lint-free swab before reconnecting to ensure signal integrity.

Q: Can the CINT-45X1 be used in an ACS600 drive?
A: The CINT-45X1 is primarily specified for ACS800 AINT slots. ACS600 drives use a different board form factor and slot keying. Confirm your drive model and AINT slot revision before ordering. TOPNLMS technical support can assist with cross-reference verification.

Q: What is the physical installation procedure?
A: Power down the drive and follow ABB’s LOTO procedure. Remove the drive’s front cover to access the AINT slot. Disconnect the fiber optic cables from the existing board, note their channel assignments (CH1–CH3), remove the board by releasing the retention clips, insert the CINT-45X1 into the slot until it seats firmly, reconnect the fiber cables to the correct channels, and restore power. The drive should recognize the board automatically on startup.

Q: What if my system uses PROFIBUS or DeviceNet instead of DDCS?
A: The CINT-45X1 handles the internal DDCS fiber link between the AINT slot and the drive’s master controller. Fieldbus protocols (PROFIBUS, DeviceNet, Modbus) are handled by separate fieldbus adapter modules installed in the drive’s option slot. Replacing the CINT-45X1 does not affect fieldbus adapter configuration.

Q: How do I verify the replacement board is functioning correctly after installation?
A: After power-up, check drive parameter 70.01 (Master Follower Mode) and the DDCS channel status indicators in the drive’s diagnostic menu. A solid green LED on the CINT-45X1 (where fitted) and absence of fault codes 9xxx (communication faults) confirm correct operation.

Warranty Assurance

Every CINT-45X1 unit shipped by TOPNLMS is subject to a multi-stage outgoing inspection process that includes visual examination for physical damage, board-level continuity testing, and functional verification of DDCS channel interfaces where test equipment permits. Units are packed in anti-static ESD bags, placed in foam-lined cartons, and shipped with a serialized inspection record.

TOPNLMS provides a 12-month warranty from the date of shipment on all drive interface boards. If a unit exhibits a defect in materials or workmanship within the warranty period, TOPNLMS will arrange a replacement shipment or issue a refund at the buyer’s discretion. Warranty claims are processed within 3 business days of receiving the returned unit and a completed fault description form.

For urgent production-line requirements, TOPNLMS maintains buffer stock of high-demand AINT-Series components at our Xiamen warehouse, enabling same-day or next-business-day dispatch for in-stock items. Express courier options (DHL, FedEx, UPS) are available for international shipments to minimize plant downtime.

Our technical team is available to assist with cross-reference verification, installation guidance, and post-installation commissioning support. Contact us before purchase if you require confirmation of compatibility with your specific drive serial number or hardware revision.