Connection Methods
Capacitive sensors can be electrically integrated into systems in various ways. The various versions of sensors with fixed cables with or without plugs or with connector plugs are available as standard in various designs.
Terminal Compartment
Sensors of this type have a designated area in the sensor housing for electrically interconnecting the sensor to the plant. The terminal compartment allows users to freely select the connection cable. This is of particular benefit in applications involving UV resistance or resistance to chemical agents. In addition, users are not tied to fixed cable lengths, and the terminal compartment offers increased tamper protection compared to versions with connectors.
Pepperl+Fuchs capacitive sensors with terminal compartments may contain the type designation "KK" in the second position of the type code.
Fixed Cable with or without Connector
Sensors of this type have a fixed cable that can be preassembled or a fixed cable with a typical connector for industrial automation. Sensors with fixed cable are affordable options, since they do not require an additional single-ended female cordset and keep the number of connection points to a minimum. Connection to special connectors is possible depending on the application requirement (e.g., automotive industry).
Sensors with fixed cables and a connector have information on the cable length and the type of connector included at the end of their type code, e.g.: CBN10-F46-E2-0,1M-V1, CBN10-F64-E2-0,3M-V1, etc.
Electrical Versions and Typical Switching Examples
The following table provides an overview of common capacitive sensors with regard to the electrical version, sensor type, switching examples, and typical data.
| Basic Series 10 V … 30 V, 100 mA Standard series 10 V … 60 V, 200 mA |
|
|---|---|
| Sensor type |
|
| Wiring diagram according to EN 60947-5-2 |
NC contact and NO contact
Example: NO contact E/E0 |
| Basic circuit diagram |  |
 |
|
| Typical data |
|
| Sensor type |
|
| Wiring diagram according to EN 60947-5-2 |
NC contact and NO contact
Example: NC contact and NO contact A2 |
| Typical data |
|
| Alternating-Current Voltage, 20 V ... 250 V | |
|---|---|
| Sensor type | WS, WÖ, W, W4 |
| Wiring diagram according to EN 60947-5-2 |
NC contact and NO contact
Example: NC contact WÖ/UÖ |
| Typical data |
|
| Direct Current Voltage, 8 V DC | |
|---|---|
| Sensor type |
|
| Wiring diagram according to EN 60947-5-2 |
NC contact or NO contact
Example: NC contact N/N0 or SN |
| Typical data |
|
Sensor Types: Wire Colors and Plug Assignment According to EN 60947-5-2
Below you find an overview of the pin assignment and wire colors of the capacitive sensors.
The pinout numbers correspond to the numbering of the pins on the connector plugs. This does not apply to proximity sensors for AC and those with three-pin 8 mm plugs.
Switches without protective insulation require a protective conductor terminal for voltages above 50 V AC and 120 V DC.
| 3 DC Connections—Observe Polarity | ||
|---|---|---|
| Function | NO contact | |
| Connection/wire colors | + | - | output Brown (BN) | Blue (BU) | Black (BK) |
|
| Pinout | 1 | 3 | 4 | |
| V1 connector plug |  |
 |
| Function | NC contact | |
| Connection/wire colors |
+ | - | output |
|
| Pinout | 1 | 3 | 2 | |
| V1 connector plug |  |
 |
| V3 connector plug |  |
 |
| 4 DC Connections—Observe Polarity | ||
|---|---|---|
| Function | Change-over contact (open/close) | |
| Connection/wire colors |
+ | - | NO contact output | NC contact output
Brown (BN) | Blue (BU) | Black (BK) | White (WH) |
|
| Pinout | 1 | 3 | 4 | 2 | |
| V1 connector plug |  |
 |
| 2 DC and NAMUR Connections—Observe Polarity | ||
|---|---|---|
| Function |
NO contact and NC contact
|
|
| Connection/wire colors |
Channel 1+ | Channel 1- | Channel 2+ | Channel 2- | Valve + | Valve -
Brown (BN) | Blue (BU) | White (WH) | Black (BK) | Red (RD) | Yellow (YE)
|
|
| Pinout | 1 | 3 | 2 | 4 | 5 | 6 | |
| V1 connector plug |  |
 |
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