The ebm-papst DC Temperature Controller can control the speed of 12V, 24V and 48V ebm-papst DC compact fans
The DC Temperature Controller 210-OMI10878 regulates fan speed by adjusting the fan supply voltage according to a temperature‑dependent profile. It supports 12 V, 24 V and 48 V ebm‑papst compact fans, with speed increasing between 20 °C‑40 °C or 35 °C‑55 °C. The controller provides an Open‑Drain alarm output or an optional relay and includes a 2‑metre NTC thermistor.
The guide covers installation, DIP‑switch configuration, power‑range setting, and initial start‑up procedures. It describes alarm LED indications (yellow flashing normal, blue solid alarm), wiring diagrams, and troubleshooting steps for common issues such as fan non‑start, over‑current alarms, and sensor failures. A compatibility list of tested ebm‑papst fans is also provided.
| Supported fan supply voltages | 12 V, 24 V, 48 V |
|---|---|
| Operating temperature range | 20 °C‑40 °C or 35 °C‑55 °C |
| Alarm output type | Open‑Drain or optional relay |
| LED indicators | Yellow flashing = normal, Blue solid = alarm |
The controller provides an Open‑Drain alarm output that goes high when an alarm condition occurs, and an optional normally‑closed relay contact that opens on alarm.
A list of ebm‑papst fans that have been tested for compatibility is provided in the document and can also be accessed online at the ebm‑papst datasheets page.