Bosch Rexroth RACK-GG 500 PLC Rack for CL500 Automation
In modern industrial facilities where equipment uptime and replacement lead time directly affect production continuity, the Bosch Rexroth RACK-GG 500 PLC rack module delivers the structural backbone that keeps CL500-series automation systems running at peak efficiency. Designed for demanding production environments, this backplane provides stable, low-resistance power distribution across all installed modules — reducing thermal losses, minimizing unnecessary power draw, and supporting the kind of deterministic control performance that energy-optimized production lines demand.
The RACK-GG 500 is engineered to house the full range of Bosch Rexroth CL500 system components, including CPU modules, digital and analog I/O cards, and communication processors. By consolidating control logic, signal processing, and drive coordination into a single, well-structured rack assembly, it eliminates the redundant wiring and distributed power supplies that often account for hidden unplanned downtime on older production lines. When paired with Bosch Rexroth CL500 CPU modules such as the CL500-CPU, the rack enables tightly synchronized scan cycles that reduce idle processing time and lower average power consumption across the controller platform.
Product Specification Table
| Parameter |
Specification |
| Product SKU |
RACK-GG 500 |
| Brand / Series |
Bosch Rexroth / CL500 |
| Product Type |
PLC Rack / Backplane |
| Power Distribution |
Low-resistance backplane bus for reduced thermal loss |
| Module Compatibility |
CL500 CPU, I/O, Communication, and Function Modules |
| Operating Environment |
Industrial automation, machine control, process lines |
| Maintenance Value |
Centralized power routing reduces distributed supply losses |
| Compatible Systems |
Bosch Rexroth CL500 PLC platform |
| Origin |
Germany (DE) |
| Warranty |
warranty terms confirmed during quotation |
| Stock Status |
RFQ Available — Ships After Outgoing Test |
System Compatibility and Application
The RACK-GG 500 sits at the heart of a broader industrial control architecture. In a typical CL500-based machine cell, the rack hosts the CL500 CPU module alongside dedicated CL500 digital output modules that drive actuators and solenoid valves with precise timing — eliminating the unplanned downtime caused by over-dwell or unsynchronized switching. Analog input modules installed in the same rack collect real-time signals from current transducers and power meters, feeding consumption data directly into the PLC scan cycle without communication latency.
On the drive side, the CL500 rack communicates with Bosch Rexroth DIAX04 servo drives and EcoDrive CS frequency inverters via SERCOS or PROFIBUS interfaces, enabling closed-loop speed and torque regulation that keeps motors operating within their optimal efficiency bands. Rather than running motors at fixed speeds, the CL500 CPU — hosted in the RACK-GG 500 — dynamically adjusts drive setpoints based on load feedback, cutting unnecessary energy draw during low-demand production phases.
For remote I/O expansion, Bosch Rexroth Inline I/O terminals connect to the CL500 rack via fieldbus, distributing signal acquisition across the machine without requiring additional controller hardware. This architecture reduces the number of active power supplies on the line, directly lowering standby consumption. Bosch Rexroth HMI panels connected to the CL500 system provide operators with real-time energy dashboards, displaying per-axis power consumption, cycle efficiency scores, and alarm states — all sourced from data processed through the RACK-GG 500 backplane.
At the network level, Bosch Rexroth communication modules installed in the rack bridge the CL500 platform to SCADA and MES systems, enabling plant-wide condition monitoring and production scheduling that aligns machine cycles with off-peak power tariffs. SITOP-class 24V DC power supplies feeding the rack are selected for high conversion efficiency, ensuring that the power entering the backplane is delivered to modules with minimal conversion loss. The result is a tightly integrated, energy-accountable automation cell where every watt is tracked, managed, and optimized.
Maintenance and Replacement Notes
On active production lines, the RACK-GG 500 contributes to operational stability in several measurable ways. First, by centralizing all control I/O within a single backplane, it eliminates the need for multiple distributed controllers — each with its own power supply, cooling requirement, and standby draw. A single CL500 rack replacing three distributed control nodes can reduce controller-level power consumption by 30–50% depending on the application.
Second, the rack’s stable backplane bus ensures that CL500 modules receive clean, regulated power without the voltage sag that can cause PLCs to execute redundant error-recovery cycles — a hidden source of both unplanned downtime and cycle time loss. Stable power delivery translates directly into consistent scan times, which in turn allows drive systems like the Bosch Rexroth IndraDrive Mi to execute motion profiles with the precision needed to avoid overshoot, rework, and material waste.
Third, when the CL500 system is integrated with condition monitoring via Bosch Rexroth BTA power analysis tools or third-party power meters connected through analog I/O, the RACK-GG 500 becomes the data aggregation point for plant energy reporting. Maintenance teams can identify which machine cycles consume disproportionate power, schedule predictive maintenance before efficiency-degrading faults develop, and validate the impact of process improvements — all without adding separate condition monitoring hardware.
Every RACK-GG 500 unit supplied by ZYPLC undergoes a full outgoing functional test before shipment, verifying backplane bus integrity, slot continuity, and power rail stability. Units are shipped with a warranty terms confirmed during quotation and are available from availability subject to RFQ confirmation for fast global delivery.
Product Sourcing FAQ
Q: How does the RACK-GG 500 contribute to operational stability compared to distributed control architectures?
A: By consolidating CL500 CPU, I/O, and communication modules into a single backplane, the RACK-GG 500 eliminates multiple distributed power supplies and their associated conversion losses. Centralized control also enables tighter synchronization of drive and actuator commands, reducing idle energy draw between production cycles.
Q: Is the RACK-GG 500 compatible with all CL500 series modules?
A: Yes. The RACK-GG 500 is designed for the Bosch Rexroth CL500 platform and supports the full range of CL500 CPU, digital I/O, analog I/O, and communication modules. If you are integrating with specific drive or fieldbus modules, our technical team can confirm slot compatibility before shipment.
Q: What testing is performed before the unit ships?
A: Each RACK-GG 500 undergoes a comprehensive outgoing test covering backplane bus continuity, power rail voltage stability, and slot connector integrity. Test results are documented and available upon request. All units ship with a warranty terms confirmed during quotation covering manufacturing defects and functional failures.
Q: Can the RACK-GG 500 be used as a direct replacement for a failed rack in an existing CL500 system?
A: Yes. The RACK-GG 500 is a form-fit-function replacement for the original Bosch Rexroth CL500 rack. Module re-installation follows standard CL500 procedures with no firmware changes required. Contact ZYPLC to confirm availability and lead time for your specific configuration.
