Features:
- Two independent tachometer inputs for speed-related monitoring
- 1–1,200,000 rpm measuring range for varied rotating assets
- Two isolated 4–20 mA outputs with relay and network alarming
The XM-220 converts tachometer pulse trains into speed and protection variables used by local relays, analog outputs, and the connected monitoring network.
Its value lies in channel configuration: sensor behavior, pulses per revolution, alarm logic, and output scaling determine whether the same hardware suits a particular machine.
Commissioning should prove both measurement accuracy and the complete alarm-to-shutdown path before normal operation resumes.
The 1440-SPD02-01RB Allen-Bradley is listed as Active / Available from OEM.
Allen-Bradley 1440-SPD02-01RB XM-220 Dual Speed Module Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Connect two documented tachometer channels through the correct terminal base.
- Set pulses per revolution and sensor thresholds from the installed target geometry.
- Inspect gap, signal amplitude, noise, and grounding before changing trip values.
- Two isolated 4–20 mA outputs retransmit selected measurements.
- Relay behavior depends on configured logic, delay, latching, and failsafe state.
- Prove the final machine response rather than testing the module contact alone.
- Record the node address and mapped measurements before replacement.
- Confirm network communication after local channel checks pass.
- Restore configuration from a verified file tied to the exact machine.
- Overspeed and underspeed monitoring
- Zero-speed and reverse-rotation detection
- Networked protection of turbines, fans, pumps, and driven equipment