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Product Overview
The Rexroth KE310 is a communication unit used in Bosch Rexroth tightening systems, particularly the Screw System 300 architecture. Its primary function is to coordinate communication between tightening-control modules and higher-level systems such as PLCs, PCs, operator interfaces, and evaluation software. Rexroth documentation identifies the unit as a communication module with two built-in serial interfaces and three additional expansion slots for interface modules. These slots can accommodate modules for PROFIBUS DP, Ethernet, Interbus-S, DeviceNet, serial communication, or 24 V parallel I/O, depending on the system configuration. The documented ordering number is 0 608 830 240.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | KE310 |
| Manufacturer | Bosch Rexroth / Indramat |
| Product Type | Tightening System Communication Unit |
| Order Number | 0 608 830 240 |
| System | Rexroth Screw System 300 |
| Supply | 5 V DC, 3 A and 24 V DC, 2 A |
| Communication / Protocol | RS232, RS232/20 mA, RS232/RS422; expansion modules available |
| Expansion Slots | 3 |
| Mounting | Rack/system housing installation |
| Operating Temperature | Up to 55°C with fan |
| Relative Humidity | 20-90%, non-condensing |
| Dimensions (HxWxD) | Approx. 120 × 40 × 130 mm, supplier reference |
| Weight | Approx. 2.0 kg supplier reference; actual assembly varies |
| Typical Interfaces | X11 RS232, X12 RS232/20 mA, X13 RS232/RS422 |
| Cooling | Fan-assisted system installation |
| Status Indication | Diagnostic/status LEDs |
Rexroth’s technical documentation confirms the 55°C operating limit with a fan and identifies three expansion positions. Secondary supplier records report the 5 V/3 A and 24 V/2 A ratings and approximately 2.0 kg unit weight.
Rexroth KE310
Key Features and Benefits
- Central communication interface for Rexroth tightening-system architecture.
- Three expansion slots for application-specific interface modules.
- Built-in serial interfaces support programming, diagnostics, and external equipment communication.
- Compatible with interface modules for PROFIBUS DP, Interbus-S, DeviceNet, Ethernet, and parallel I/O applications.
- Suitable for legacy Screw System 300 installations where the original communication architecture must be retained.
- LED diagnostics assist technicians during commissioning and fault isolation.
Personally, I would verify the installed interface cards before replacing this unit. The base KE310 is only part of the communication architecture; the daughter modules installed in X14-X16 can determine how the complete tightening system communicates with the plant controller.
Related Models
SMpdp — Interface module used for PROFIBUS DP communication within the KE310 expansion architecture.
SMeth — Ethernet communication interface module for suitable higher-level network connections.
SMibs — Interbus-S interface module used for compatible industrial communication systems.
SM24V+ — Parallel 24 V interface module for applications requiring discrete control and status exchange.
Installation and Maintenance
Before replacement, record the existing KE310 configuration, including installed interface modules, communication parameters, memory hardware, and serial-port settings. Rexroth documentation specifically provides separate interfaces at X11, X12, and X13 and identifies three expansion slots for communication modules.
During maintenance, inspect connectors, rack contacts, cooling, battery condition, and installed interface cards. Configuration data should be backed up before battery replacement because stored data may be lost during the procedure.
Use the original system documentation when transferring parameters and verify communication with the PLC or host computer before returning the tightening system to production.
Product Warranty
Warranty coverage depends on supplier, stock condition, and purchase agreement. Confirm whether the unit is new old stock, refurbished, tested used, or surplus, and request the exact hardware version and installed-module configuration before procurement.
The Rexroth KE310 is best managed as a dedicated tightening-system spare, with its communication-card configuration verified as carefully as the base unit itself.
