Technical Data
ATSAMD21G18 Microcontroller- 128x64 px LCD Screen with Backlight
- Membrane 3 Button Panel
- Ethernet Module (mandatory)
M2M 3G/LTE Router optionally available - Standard Input Voltage: 12V / 24V DC
permissible range: 8–28V DC
12V, 24V PSU optionally available - DIN-Rail mountable
- 4 Analog Input Channels
- 2 Analog Output Channels
- Levels: 4–20mA / 0–10V
- Fully isolated from MCU and Digital Side (1kV isolation)
- 8 Digital I/O Channels
- Digital Input Voltage Range: 0–28V
input channels internally driven LOW - Digital Output Vortage Range: 8–28V (tied to VIN)
- Digital I/O Levels: LOW ≤ 3V, HIGH ≥ 11V
I/O Logic is active high - Max. Output Current per Pin: 2.6A
(short circuit, over-current, over-temp. protected) - Max. Total Output Current: 6.5A (omni block fused)
- Fully isolated from MCU and Analog Side (1kV isolation)
- Isolated Half Duplex RS-485 Transceiver
Important Notes
To properly operate the Raindancer Beacon, it has to be connected to an adequate power supply via the POWER-IN field (12/24V DC is recommended). The USB port on the front casing is not suitable.
When a single power supply is used to power both, Raindancer Beacon and peripherals, the GND lines should be tied together.
Power down all systems (Raindancer Beacon, sensors/actuators) before connecting to the Raindancer Beacon via USB, internal components may irreparably take damage otherwise!
Analog Field Section
- Analog Pins can be individually configured, according to the requirements of the devices to be connected: 0-10V or 4-20mA. By default, all Analog Pins are preconfigured to 4-20mA. An alternate configurations can be set using the web-portal.
Pin Assignment and Value Ranges when Used as Pump Control Unit:
- The value ranges can be individually adjusted using the web-portal.
| A OUT | Assignment | Default Range |
| CH 1 | Target / Min. Pressure | 0 – 16 bar |
| CH 2 | Manually Set Pressure | 0 – 16 bar |
| A IN | Assignment | Default Range |
| CH 1 | Current Pressure | 0 – 16 bar |
| CH 2 | Current Power | 0 – 100 kW |
| CH 3 | Current Flow | 0 – 100 m³/h |
| CH 4 | Current Speed | 0 – 3.600 rpm |
Digital Field Section
- Output can be configured as a permanent or pulsed signal (125ms – 256s).
Signal configuration can be adjusted using the web-portal. - Pulse counter (using level raise/fall, max. ca. 60Hz), e.g. for water meters on Digital Channel 8.
- Please note that floating/pulsing input voltages may be transmitted as highly fluctuating input signals, triggering associated actions (e.g. error notification).
Default Pin Assignment and Value Ranges When Used as Pump Control Unit:
| D CH | Assignment | Signal | Interpret. |
| 1 (OUT) | Control ON | Pulse, 125ms | ON |
| 2 (OUT) | Control OFF | Pulse, 125ms | OFF |
| 3 (IN) | Confirmation | Permanent | ON/ OFF |
| 4 (IN) | Error Code 1 | Permanent | ON/ OFF |
| 5 (IN) | Error Code 2 | Permanent | ON/ OFF |
| 6 (IN) | Error Code 3 | Permanent | ON/ OFF |
| 7 (OUT) | Reset Error | Pulse, 2s | |
| 8 (IN) | Counter | Pulse |
Error Codes
- By combining the three main Error Codes using Digital Channels 4 – 6, four additional states, up to a total of 7, can be transmitted.
- • The textual interpretations of the Error Codes can be customized individually using the web-portal.
Default Error Codes Used by Pump Control/Monitoring:
| Code 1 (CH 4) |
Code 2 (CH 5) |
Code 3 (CH 6) |
Interpretation |
| 0 | 0 | 0 | no malfunction |
| 1 | 0 | 0 | Malfunction - Pressure, generic. |
| 0 | 1 | 0 | Malfunction - Motor Temperature |
| 0 | 0 | 1 | Malfunction - Frequency Inverter / Pump |
| 1 | 1 | 0 | Malfunction - Low Pressure |
| 1 | 0 | 1 | Malfunction - Excess Pressure |
| 0 | 1 | 1 | Restart after Interruption of Power Supply |
| 1 | 1 | 1 | Remote Control Disabled |