Device integrations
Volt AIO
The Volt AIO, the Voltmasters analog IO module: 4-20 mA inputs and outputs to follow a Fluvius telecontrol cabinet version 4 that steers with analog signals.
The Volt AIO reads the setpoints of the telecontrol cabinet as a current, sends them back as an echo and reads the Q mode. No PLC is needed between the cabinet and the EMS anymore.
When do you need a Volt AIO?
A telecontrol cabinet version 4 offers the customer two interfaces, and the customer uses one of them (Fluvius TAU341K01, section 2.3):
| Interface | Signals | What you need |
|---|---|---|
| B1.2, IEC 60870-5-104 | Setpoints and feedback over ethernet | The controller’s RTU connection |
| B1.1, analog | 4-20 mA and potential-free contacts on terminal block XGX101 | A Volt AIO |
If an existing cabinet works analog today, for example with a PLC from another party, it stays that way: the customer may not change anything in the Fluvius cabinet. The Volt AIO then takes the place of that PLC. A Netflex cabinet always works over IEC 60870-5-104 and does not need a Volt AIO.
At a glance
| Feature | Value |
|---|---|
| Channels | 6 analog inputs, 2 analog outputs, 2 digital inputs and 2 digital outputs. |
| Analog signals | 4-20 mA, with an error of at most 0.02 mA per channel. |
| On communication loss | The outputs go to a preset safe value. |
How the signals work
Fluvius sends the P and the Q setpoint as a current, and selects the Q mode with two contacts. The Volt AIO sends both setpoints back as an echo and reports the Q mode back with two contacts. How to wire this is in the commissioning of the telecontrol cabinet version 4.
Both setpoints are a percentage of the installed power Pinst:
| Current | Setpoint |
|---|---|
| 4.000 mA | -110 % |
| 4.727 mA | -100 % |
| 12.000 mA | 0 % |
| 19.273 mA | +100 % |
| 20.000 mA | +110 % |
- Fluvius sends in steps of 10 %, which is about 0.73 mA.
- The echo has to send the same value back. Fluvius accepts a deviation of 0.1 mA per card. If the echo is further off, Fluvius considers the setpoint not received.
- The installation has 3 minutes to reach a new setpoint.
What the EMS does with the setpoints and the Q mode is on Telecontrol cabinet version 4.
Configuring the module
Configure the Volt AIO before you connect it to the cabinet:
| Setting | Value | Why |
|---|---|---|
| Jumpers AI0 and AI1 | Current | From the factory the inputs are set to voltage. |
| Jumpers AO0 and AO1 | Current | From the factory the outputs are set to voltage. |
| Range AI0 and AI1 | 4-20 mA | The open-wire detection of the inputs works in this range. |
| Input measuring mode | Normal | The fast mode is less accurate: ±0.5 % instead of ±0.1 %. |
| Range AO0 and AO1 | 0-20 mA | This lets the safe value be 0 mA. In the 4-20 mA range the lowest value would be 4 mA, which Fluvius reads as a valid echo of -110 %. |
| Communication watchdog | On | From the factory the watchdog is off. Without it, the outputs keep their last value when the link to the controller is lost. |
| Safe value AO0 and AO1 | 0 mA | If the controller drops out, Fluvius sees a fault instead of an echo confirming a setpoint nobody executes anymore. |
| Safe value DO0 and DO1 | Off | Both feedbacks drop, which is not a valid Q mode. |
Commissioning
How to test the chain before the appointment with Fluvius is under Telecontrol cabinet version 4.