Kollmorgen 64WKS-M240/50-RLG Servo Drive BDS

Kollmorgen 64WKS-M240/50-RLG Servo Drive BDS: Replacement and Sourcing Information for Optimized Production Lines

The Kollmorgen 64WKS-M240/50-RLG is a high-performance BDS-series servo drive engineered for demanding industrial automation environments where energy efficiency, motion precision, and system uptime are non-negotiable. Designed to deliver tightly regulated torque and velocity control across a wide operating range, this drive enables factories to reduce unnecessary power draw, minimize thermal losses, and extend the operational lifespan of connected servo motors. Whether integrated into a standalone axis or embedded within a multi-axis coordinated motion system, the 64WKS-M240/50-RLG provides the control bandwidth and energy awareness that modern production lines require.

In high-cycle manufacturing environments — from automotive assembly to packaging machinery and CNC machining centers — unplanned downtime often originates not from peak load events but from inefficient part-load operation, excessive regenerative braking losses, and poorly tuned current loops. The Kollmorgen 64WKS-M240/50-RLG addresses these inefficiencies directly through its precision PWM switching architecture, which maintains low harmonic distortion and high power factor across the full speed range. This translates to measurable reductions in kWh consumption per production cycle, directly impacting the facility’s energy cost per unit output.

Product Specification Table

System Compatibility and Application

The 64WKS-M240/50-RLG is most effective when deployed as part of a coordinated industrial automation system. In a typical servo-driven production cell, the drive interfaces directly with a Kollmorgen AKM servo motor, leveraging the motor’s high torque-to-inertia ratio to minimize acceleration energy and reduce settling time between motion segments. When paired with the Kollmorgen S700 servo drive platform in a multi-axis configuration, the 64WKS-M240/50-RLG can participate in shared DC bus topologies, allowing regenerative energy from decelerating axes to be redistributed to accelerating axes rather than dissipated as heat through braking resistors.

At the control layer, the drive integrates seamlessly with the Kollmorgen KAS (Kollmorgen Automation Suite) IDE, which provides centralized motion program management, real-time axis synchronization, and energy profiling tools. Engineers can use KAS to configure electronic cam profiles and gearing relationships that minimize jerk and reduce peak current demand — both of which directly lower instantaneous power draw and reduce stress on upstream power distribution equipment.

For facilities running mixed automation architectures, the 64WKS-M240/50-RLG supports standard industrial communication protocols, making it compatible with Siemens SIMATIC S7 PLC platforms and Allen-Bradley ControlLogix controllers via analog command interfaces or fieldbus adapters. This interoperability allows the drive to be incorporated into existing SCADA and maintenance planning systems without requiring a full controls overhaul.

Power quality monitoring upstream of the drive is equally important. Deploying a Schneider Electric PowerLogic PM5000 series power meter or equivalent device at the panel level allows facility engineers to track real-time kW demand, power factor, and harmonic content attributable to the servo drive system. This data feeds into energy dashboards and supports ISO 50001 maintenance planning reporting. Complementing this, a Phoenix Contact QUINT power supply on the 24 VDC control rail ensures stable logic power to the drive’s I/O and communication modules, preventing nuisance faults that would otherwise interrupt production and waste energy through unplanned restart cycles.

On the I/O side, the drive’s digital and analog inputs can be wired to a Beckhoff EL1008 digital input terminal or similar distributed I/O module, enabling the PLC to monitor drive status, fault codes, and enable signals in real time. This tight feedback loop supports predictive maintenance strategies: by logging drive temperature, load factor, and fault history through the I/O network, maintenance teams can schedule interventions before failures occur, avoiding the energy and productivity losses associated with unplanned downtime.

For HMI visualization, integrating the drive status into a Weintek cMT series HMI or Siemens SIMATIC HMI TP700 panel gives operators real-time visibility into axis performance, operating load trends, and alarm states — enabling faster response to process deviations and reducing the duration of energy-wasting fault conditions.

Maintenance and Replacement Notes

In a real-world packaging line running 24/7, the Kollmorgen 64WKS-M240/50-RLG contributes to maintenance planning at multiple levels. During product changeovers, the drive’s rapid parameter switching capability allows the motion profile to be adjusted for different product weights and speeds without stopping the line, eliminating the energy cost of repeated full-stop and restart cycles. During steady-state operation, the drive’s high-efficiency current regulation minimizes resistive losses in the motor windings, reducing heat generation and lowering the cooling load on the control cabinet — a secondary but meaningful energy saving.

In CNC machining applications, the drive’s high bandwidth torque control enables aggressive deceleration profiles that recover kinetic energy through regeneration rather than mechanical braking. Over thousands of tool-change cycles per shift, this regenerative capability accumulates into significant operational stability. The drive’s ability to maintain precise velocity under varying cutting loads also reduces the incidence of tool chatter and surface finish defects, lowering the rate of scrap and rework — both of which carry embedded energy costs that are often overlooked in energy audits.

For semiconductor and electronics assembly equipment, where motion precision directly affects yield, the 64WKS-M240/50-RLG’s low-noise current control and high-resolution feedback processing ensure that positioning accuracy is maintained even at low speeds, where many servo drives exhibit increased torque ripple and energy inefficiency. This precision at low speed reduces the need for over-engineering motion profiles with excessive safety margins, allowing the machine to operate closer to its optimal energy-per-cycle point.

From a maintenance cost perspective, the drive’s built-in diagnostic capabilities — including overcurrent protection, thermal monitoring, and encoder fault detection — reduce the mean time to repair (MTTR) when issues do occur. Faster fault diagnosis means shorter downtime windows, less wasted energy from idle equipment, and lower labor costs per incident. Combined with the warranty terms confirmed during quotation coverage provided on all verified surplus units, the total cost of ownership for the 64WKS-M240/50-RLG is highly competitive against new-production alternatives.

Product Sourcing FAQ

Q1: How much energy can the Kollmorgen 64WKS-M240/50-RLG save compared to a conventional servo drive?
A: The 64WKS-M240/50-RLG operates at ≥95% efficiency at rated load, compared to 88–92% for older generation drives. In high-duty-cycle applications running 6,000+ hours per year, this efficiency delta can translate to thousands of kWh in annual savings per axis. Actual savings depend on load profile, duty cycle, and the baseline efficiency of the drive being replaced.

Q2: Is the 64WKS-M240/50-RLG compatible with my existing Kollmorgen AKM motor and S700 controller?
A: Yes. The BDS series drives, including the 64WKS-M240/50-RLG, are designed for compatibility with Kollmorgen AKM brushless servo motors and integrate with the S700 platform’s communication and parameter management tools. Verify motor nameplate data and encoder type (RLG resolver) against drive specifications before installation.

Q3: What is the recommended replacement or upgrade path if the 64WKS-M240/50-RLG is discontinued?
A: The functional equivalent in Kollmorgen’s current lineup is the AKD2G series servo drive, which offers enhanced condition monitoring, EtherCAT communication, and SafeMotion functionality. Migration requires updated motor feedback wiring and KAS software configuration but preserves motion program logic. Our technical team can advise on the migration process.

Q4: What does the warranty terms confirmed during quotation cover, and how is the unit tested before shipment?
A: All surplus units undergo functional testing including power-on verification, output current measurement, feedback signal integrity check, and communication port validation before shipment. The warranty terms confirmed during quotation covers manufacturing defects and functional failures under normal operating conditions. Units are shipped with anti-static packaging and include a test report upon request.