Parker CPX2570S/E2/F3 Replacement for Compax-S Series

Product Overview

Parker CPX2570S/E2/F3 Replacement for Compax-S Series: Smooth Transition from Legacy Servo Systems

The Parker CPX2570S/E2/F3 is a high-performance digital servo drive from the Compax-S series, designed for precision motion control in demanding industrial automation environments. As legacy servo systems age and original equipment manufacturers discontinue support for older drive platforms, plant engineers and maintenance teams face increasing pressure to source reliable replacement units that preserve existing wiring infrastructure, retain communication protocol compatibility, and minimize production downtime during changeover.

This CPX2570S/E2/F3 unit supports EtherCAT fieldbus communication and Resolver feedback, delivering 25A continuous and 70A peak output current — making it a direct functional replacement for aging Compax-S drives deployed in multi-axis servo systems, CNC machine tools, packaging lines, printing presses, and semiconductor handling equipment. Whether you are replacing a failed unit on an emergency basis or executing a planned retrofit of an end-of-life servo platform, this drive is engineered to slot into your existing control architecture with minimal re-engineering.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful Compax-S servo drive replacement rarely involves the drive alone. In most retrofit projects, the CPX2570S/E2/F3 is integrated alongside a broader set of motion control and automation components that must be verified for compatibility before commissioning begins.

On the motor side, Parker’s MPP and MPJ series servo motors with resolver feedback are the natural pairing for this drive. Existing resolver cables — typically 6-pin or 8-pin shielded assemblies — can be reused directly without re-termination, provided the cable length and shielding integrity are confirmed. If the legacy system used a Parker MX80 linear stage or a rotary servo axis with a Compax-S predecessor, the mechanical interface and motor wiring remain unchanged.

For EtherCAT network integration, the CPX2570S/E2/F3 connects directly to EtherCAT master controllers such as the Parker ACR9000 multi-axis controller or third-party EtherCAT masters from Beckhoff, Omron, or Siemens S7-1500 series PLCs equipped with EtherCAT communication modules. The drive’s EtherCAT slave stack is fully compliant with CiA 402 (IEC 61800-7) drive profile, ensuring that existing motion programs and axis parameter sets can be migrated with minimal modification.

In control cabinet installations, the CPX2570S/E2/F3 is typically mounted alongside a Parker AC10 or AC30 series variable frequency drive for auxiliary axes, a 24VDC SITOP power supply module for logic and I/O rail power, and a Phoenix Contact or Weidmüller terminal block assembly for signal distribution. If the legacy system included a Parker ViX250 or ViX500 stepper/servo drive on a secondary axis, that unit can remain in service while the primary axis is upgraded to the CPX2570S/E2/F3, preserving a phased migration approach that avoids full-system downtime.

For systems that previously relied on SERCOS or CANopen communication, a protocol gateway module — such as an HMS Anybus communicator or a Parker GV6 gateway — may be required to bridge the legacy PLC backplane to the new EtherCAT segment. This is particularly relevant in older Siemens S7-300 or Allen-Bradley ControlLogix installations where the motion controller does not natively support EtherCAT. In such cases, the CPX2570S/E2/F3 can also be operated in standalone mode using its onboard IEC 61131-3 motion program, reducing dependency on the upstream PLC during the transition period.

Signal isolation between the servo drive’s analog reference inputs and the PLC analog output module is recommended in high-noise environments. A DIN-rail-mounted signal isolator — such as a Phoenix Contact MINI MCR or a Wago 857 series isolator — inserted between the PLC’s ±10V analog output and the drive’s command input will eliminate ground loop interference that can cause velocity ripple or position drift in precision applications.

Retrofit Guidance FAQ

Q: Can I reuse my existing resolver wiring when replacing an older Compax-S drive with the CPX2570S/E2/F3?
A: Yes. The F3 feedback option on this drive uses the same resolver interface pinout as earlier Compax-S variants. Provided your existing resolver cable is in good condition and properly shielded, it can be reconnected directly to the X4 feedback connector on the new drive without modification.

Q: Will my existing C3 ServoManager parameter file work with this drive?
A: Parameter files created in C3 ServoManager for same-series Compax-S drives are generally compatible. We recommend importing the existing parameter set, reviewing axis-specific tuning values (Kp, Ki, Kd, velocity feedforward), and performing a controlled test run at reduced speed before returning the axis to full production speed.

Q: The legacy system uses a Siemens S7-300 PLC with a Profibus master. How do I integrate the EtherCAT drive?
A: The CPX2570S/E2/F3 does not natively support Profibus. For S7-300 systems, the recommended approach is to use an EtherCAT master card in the PLC rack (e.g., Hilscher CIFX 50E-RE) or to operate the drive in standalone IEC 61131-3 mode with digital I/O triggers from the PLC for start/stop and position select commands. A full migration to a Siemens S7-1500 with EtherCAT CM is the long-term recommended path.

Q: What is the physical installation space requirement?
A: The CPX2570S/E2/F3 follows the standard Compax-S panel-mount form factor. Verify the cabinet depth (minimum 200mm recommended) and ensure adequate clearance above and below the drive for cooling airflow. The drive requires no additional cooling fan if ambient cabinet temperature is maintained below 40°C.

Q: How long does commissioning typically take for a direct replacement?
A: For a like-for-like replacement where the motor, resolver cable, and parameter file are retained, experienced engineers typically complete commissioning — including parameter upload, safety function verification, and test cycle — within 2 to 4 hours. First-time installations or systems requiring new tuning may require a full shift.

Q: Is the drive compatible with Parker’s SafeMotion safety functions?
A: The CPX2570S/E2/F3 with the E2 safety option supports STO (Safe Torque Off) and SS1 (Safe Stop 1) functions in accordance with IEC 62061 and ISO 13849-1. Verify that your safety relay or safety PLC output is wired to the correct STO input terminals as specified in the Compax-S hardware manual.

Warranty Assurance

Every Parker CPX2570S/E2/F3 unit shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. Prior to dispatch, each unit undergoes a multi-point outgoing inspection that includes power-on functional verification, communication interface check, and visual inspection for connector integrity and labeling accuracy.

If a unit develops a fault within the warranty period under normal operating conditions, TOPNLMS will provide a replacement unit or full refund based on the customer’s preference. Our technical support team is available to assist with installation queries, parameter configuration questions, and fault diagnosis via email and phone during business hours (UTC+8).

For urgent replacement requirements — including emergency breakdown situations — we maintain ready stock of Compax-S series drives and can arrange same-day dispatch from our Xiamen warehouse for orders confirmed before 14:00 CST. International shipments are handled via DHL Express, FedEx International Priority, or UPS Worldwide Expedited, with typical transit times of 3–7 business days to most destinations.

All units are shipped in anti-static packaging with individual serial number documentation. A copy of the outgoing inspection record is included with each shipment. Customers requiring third-party inspection certificates or specific export documentation (e.g., CO, packing list in specific format) should advise at the time of order.