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3. Key Technical Specifications
- Designation: KE310
- Order Number: 0 608 830 240
- Supply Voltage / Current: 5 V DC at 3.0 A, 24 V DC at 2.0 A
- Weight: Approx. 2.0 kg (4.40 lbs)
- Cooling: Passive
- Mounting: Rack-mounted in SB system box
- Operating Temperature: Up to 55 °C (with fan)
- Relative Humidity: 20–90 % (non-condensing)
- Interfaces: X11 RS232 (programming / SD301), X12 RS232 / 20 mA, X13 RS232 / RS422
- Expansion Slots: 3 module slots (Profibus DP SMpdp, Interbus-S, DeviceNet, Ethernet, SM24V, SMser, etc.)
- Status Indicators: Front-panel LEDs for operating status and data traffic
- Compatibility: BT300, SB301, SB305 systems; SE311 / SE312 / SEH312 tightening controllers
4. Product Introduction
The Bosch Rexroth KE310 (0 608 830 240) is a communication module from the SB System Box Units series. It serves as the central data interface in Rexroth tightening and screwdriving cells, linking the SE3xx controllers to higher-level systems, data collection terminals, barcode readers, and fieldbuses.
It provides native RS232, 20 mA current-loop, and RS422 ports plus three expansion slots for Profibus DP, Ethernet, DeviceNet or parallel I/O modules. Engineers select the KE310 when a proven, modular communication backbone is required for existing SB301 / SB305 installations and when direct form-fit replacement of a failed unit is needed without redesigning the control architecture.
KE310
KE310
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No LEDs on power-up | Missing 5 V or 24 V supply | ✅ High | Measure 5 V and 24 V at the backplane connectors with a multimeter | Confirm both supplies are present and within tolerance before replacing the module |
| Status LED shows “not ready” or continuous fault | Module hardware fault or incomplete boot | ✅ High | Observe LED pattern after power cycle; try restart button | If pattern persists after confirmed good power, replace the KE310 |
| No communication on X11 / X12 / X13 | Incorrect cable, baud rate, or interface selection | ✅ Medium | Verify pinout and signal levels with oscilloscope or known-good cable; check configuration in BS300 software | Confirm interface type (RS232 vs 20 mA vs RS422) matches the connected device |
| Fieldbus module (e.g., SMpdp) not recognized | Expansion module seating or defective slot | ✅ Medium | Reseat the plug-in module; check for bent pins; test with known-good module | Empty slots must be covered with BP302 blanking plates for EMC and safety |
| Intermittent data loss during operation | Loose connectors or thermal issue | ✅ Medium | Check all plug connections under vibration; monitor temperature | Ensure passive cooling path is unobstructed and ambient stays within limits |
| System reports communication timeout after module swap | Firmware or configuration mismatch | ✅ High | Compare firmware version and DIP/jumper settings with the removed unit | Document original settings before removal; request matching firmware range if ordering |
If the above checks do not isolate the fault, send clear photos of the LED status, wiring, and any diagnostic logs from the BS300 software to technical support.
6. Frequently Asked Questions (FAQ)
Q: Is the KE310 still supported or is it obsolete?
A: The KE310 belongs to an older SB System Box generation. Bosch Rexroth no longer manufactures it in volume, so genuine new units are limited to remaining stock and new-surplus inventory. Functionally identical used or refurbished units remain widely available for direct replacement.
Q: Can I hot-swap the ?
A: No. Power down the system completely before removing or inserting the module. Hot-swapping risks damaging the backplane connectors and the module itself.
Q: What expansion modules fit in the three slots?
A: Common options include SMpdp (Profibus DP), SMeth (Ethernet), SMibs (Interbus-S), SMdev (DeviceNet), SM24V / SM24V+ (parallel I/O), and SMser (serial). Only one SMeth or SMpdp should be installed. Unused slots require BP302 blanking plates.
Q: Does the retain configuration when replaced?
A: Configuration is stored in the higher-level system (BS300 software and connected controllers). The itself does not hold application parameters. After replacement you must re-establish the interface settings and verify communication with the existing SE3xx controllers.
Q: Why is the price lower than a factory new unit from Bosch?
A: These units are new surplus or carefully tested used modules. They have been verified for correct power-up, LED behavior, and basic interface function. They carry a standard 1-year warranty but are not factory-sealed current production.
Q: What power supplies does the need?
A: Both 5 V DC at up to 3.0 A and 24 V DC at up to 2.0 A must be present on the system backplane. Missing either supply will prevent the module from becoming ready.
Q: Is the compatible with newer Rexroth tightening systems?
A: It is designed for the SB301 / SB305 / BT300 generation and the associated SE311 / SE312 / SEH312 controllers. It is not a drop-in for the latest generation systems; verify your exact system architecture before ordering.
