Highlights
- Power supply by 3AC-/DC-board network or vehicle battery
- V/f-control for compressor motor
- Soft start function for compressor motor
- Control and monitoring of the entire air supply unit
- Communication with TCMS via binary inputs/outputs
- Diagnostic interface via Ethernet
Technical description
The IAC inverter is used as the central control unit of the air supply unit within a rail vehicle. The following functions are realized by the IAC:
- Control of the compressor speed
- Dryer control depending on compressor speed (changeover/regeneration logic and heating control)
- Operation of the compressor on the DC vehicle battery
- Motor temperature monitoring
- Basic inverter diagnostics (e.g. voltage and current monitoring)
- Control of an e-fan
- monitoring of the air supply unit (e.g. air pressure)
- (optional) Communication via CAN with TCMS
The IAC inverter is supplied from the 3AC/DC on-board power supply grid or the DC vehicle battery (optional).
Technical Data
| Input voltage | 3AC 400 / 480 V (IT / TN power supply acc. to EN 50533:2012, Class 1) DC 480 V ... 780 V (insulated DC grid, OV2) |
|---|---|
| Output power | 14kVA/26kVA |
| Output voltage | 3AC 0-330 V, 0-70 Hz |
| Output current | 25A/40A |
| Communication | CAN / Ethernet (Diagnostic) / 4 x DI / 3 x DO / 1x AI 0-10mA |
|---|---|
| Control voltage | DC 24-110V according to EN 50155 |
Mechanical Data
| Dimensions (L x B x H) | 540 mm x 380 mm x 260 mm |
|---|---|
| Weight | 40 kg |
| Protection class | IP 65 |
| Cooling | Natural convection |
| Ambient temperature | -40 °C … +55 °C |
| EMC | EN 50121-3-2 |
|---|---|
| Fire protection | EN 45545 |
| Design of electrical connections | Plugs |
