WAC155 provides the line cable entry through a gland for a cable with a diameter 7 ... 10 mm. For better protection against RF interference, bend the cable shield.
WAC155 has 3 plug-in I/O connectors: X1, X2, and X3. The terminals accept wires with maximum cross-section area of 1.5 mm2.
For the location of the connectors and the cable routing through the cable glands, see Sensor Wiring.
The following tables show the I/O connector pinouts.
| Pin number | Signal | Description |
|---|---|---|
| 1 | F | Frequency input from sensor |
| 2 | F+ | Supply voltage output to sensor |
| 3 | GND | Sensor ground |
| 4 | HT1 | Heating supply through control switch from X2 |
| 5 | HTC | Heating common for heater serial connection |
| Pin number | Signal | Description |
|---|---|---|
| 1 | HT1+ | Heating supply input (+) |
| 2 | HT2- | Heating supply input (-) |
| 3 | Vin+ | Supply voltage input |
| 4 | Vin+ | Supply voltage input |
| 5 | Vin- | Supply voltage ground |
| 6 | Vin- | Supply voltage ground |
| 7 | SD1- | RS-485 inverting I/O |
| 8 | SD1+ | RS-485 non-inverting I/O |
| Pin number | Signal | Description |
|---|---|---|
| 1 | HTC | Heating common for heater serial connection |
| 2 | HT2 | Heating supply return to connector X2 |
| 3 | GND | Sensor ground |
| 4 | D+ | Supply voltage output to sensor |
| 5 | G5 | Gray code input from sensor, bit 5 |
| 6 | G4 | Gray code input from sensor, bit 4 |
| 7 | G3 | Gray code input from sensor, bit 3 |
| 8 | G2 | Gray code input from sensor, bit 2 |
| 9 | G1 | Gray code input from sensor, bit 1 |
| 10 | G0 | Gray code input from sensor, bit 0 |
| 11 | AIP+ | Reserved for analog vane |