Structure and inner electrical connection: Notes
The (electrical) air conditioning compressor is connected to the high-voltage electrical system by means of a 5-pin plug connection.
The (electrical) air conditioning compressor is connected to the conventional vehicle electrical system (12 volts) and the LIN bus by means of a 7-pin plug connection.
| Item | Explanation |
|---|---|
| 1 | Air conditioning compressor (electrical) |
| 2 | Three-phase motor |
| 3 | Voltage transformer (DC/AC converter) |
| 4 | Control electronics |
| 5 | Plug connection for conventional vehicle electrical system |
| 6 | Plug connection for high-voltage electrical system with bridge for high-voltage interlock loop |
HIGH-VOLTAGE CONNECTION PIN ASSIGNMENT SPECIFICATION (5-PIN PLUG CONNECTION)
| Pin | Explanation |
|---|---|
| Shield | Shielding |
| SIG | High-voltage interlock loop connection (input) with bridge to SIG2 |
| SIG2 | High-voltage interlock loop connection (output) with bridge to signal |
| U+ | High-voltage connection, positive connection |
| U- | High-voltage connection, negative connection |
PIN ASSIGNMENT SPECIFICATION - CONNECTION TO CONVENTIONAL VEHICLE ELECTRICAL SYSTEM AND LIN BUS (7-PIN PLUG CONNECTION)
| Pin | Explanation |
|---|---|
| Terminal 30B | Terminal 30B, base operation |
| Kl. 31 | Terminal 31, ground |
| LIN | LIN bus |
| SIG | High-voltage interlock loop connection (input) |
| SIG2 | High-voltage interlock loop connection (output) |
| 2 pins not used. | |