---
title: "X6 PWM interface / external switch"
slug: "x6-pwm-interface-external-switch"
updated: 2024-07-04T14:25:58Z
published: 2024-07-04T14:25:58Z
canonical: "docs-linescan.alliedvision.com/x6-pwm-interface-external-switch"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs-linescan.alliedvision.com/llms.txt
> Use this file to discover all available pages before exploring further.

# X6 PWM interface / external switch

The following connector is required:

- Würth Elektronik 691 325 110 008

The following counterpart is required:

- Würth Elektronik 691 364 100 008

## control unit XLC4-1 and XLC4-1A

| pin | name | description |
| --- | --- | --- |
| 1 | ON | IN | switch signal for PWM mode operation - switches on the lighting in PWM-mode |
| 2 | PWC | IN | control signal for PWM mode operation - controls the LED current in PWM-mode |
| 3 | ENC | IN | do not use |
| 4 | FAIL | OUT | failure signal - signals error states in PWM-mode, Bulb-mode and Analog-mode |
| 5 | STAT | OUT | do not use |
| 6 | COMMON | GND | common ground for pins 1 – 5 |
| 7 | SW1 |  | switch |
| 8 | SW2 |  | switch |

The signal ON switches the Corona II module to PWM-controlled mode. The duty cycle of signal PWC controls the LED current in PWM-controlled mode. The signal FAIL sets error states in PWC-controlled mode, Bulb mode and Analog mode. Refer to [PWM-controlled mode](/v1/docs/pwm-controlled-mode) for further information.

The two inputs ON and PWC are opto-coupled inputs. They both use the ground line COMMON. The output signal FAIL is opto-coupled with an open collector circuit to the ground line COMMON.

## control unit XLC4-1F4

| pin | name | description |
| --- | --- | --- |
| 1 | ON_1 | IN | external LED control channel A |
| 2 | ON_2 | IN | external LED control channel B |
| 3 | ON_3 | IN | external LED control channel C |
| 4 | FAIL | OUT | failure signal |
| 5 | STAT | OUT | do not use |
| 6 | COMMON | GND | common ground for pins 1 – 7 |
| 7 | ON_4 |  | external LED control channel D |

## Signal ON - input characteristics

### control unit XLC4-1

![](https://cdn.document360.io/eca58697-9c2f-461e-9f0a-e6205b74b693/Images/Documentation/image(117).png)

| ON Max voltage | Input voltage ON ≤ 12 V |
| --- | --- |
| ON Max current | Input current ON ≤ 15 mA |
| ON Low current | Input current ON < 0.2 mA |
| ON High current | Input current ON > 0.7 mA (Recommended > 2 mA) |

### control unit XLC4-1A, XLC4-1F4

![](https://cdn.document360.io/eca58697-9c2f-461e-9f0a-e6205b74b693/Images/Documentation/image(118).png)

| ON Max voltage | Input voltage ON ≤ 25 V |
| --- | --- |
| ON voltage | ≥ 2.5 V |
| OFF voltage | ≤ 0.7 V |

## Signal PWC - input characteristics

![](https://cdn.document360.io/eca58697-9c2f-461e-9f0a-e6205b74b693/Images/Documentation/image(119).png)

| PWC Max voltage | Input voltage PWC ≤ 6 V |
| --- | --- |
| PWC Max current | Input current PWC < 15 mA |
| PWC Low current | Input current PWC ≤ 0.7 mA |
| PWC High current | Input current PWC > 1.3 mA (Recommended > 5 mA) |

If PWC needs higher voltages use a series resistor.

## Signal FAIL - output characteristics

![](https://cdn.document360.io/eca58697-9c2f-461e-9f0a-e6205b74b693/Images/Documentation/image(121).png)

| FAIL Max voltage | Output voltage FAIL ≤ 12 V |
| --- | --- |
| FAIL Max current | Input current FAIL ≤ 15 mA (Recommended 5 – 10 mA) |

> [!NOTE]
> NOTE
> 
> The output transistor of FAIL is switched on if no error is set. Use a pull-up resistor in the receiver. An interrupt at the FAIL signal line causes an error (FAIL = H) at the receiver.

## Sample circuit

![](https://cdn.document360.io/eca58697-9c2f-461e-9f0a-e6205b74b693/Images/Documentation/xlc4 control unit_X6 sample circuit.svg)

> [!NOTE]
> NOTE - resistor value
> 
> The resistor value refers to the supply voltage of 24 V. Calculate the value of the resistor dependent to the supply voltage of the power supply.

## Signal SW1, SW2

SW1 and SW2 ports are used to activate an external cooling device. When the programmed level is reached, the connection between SW1 and SW2 is closed.

- The maximum current within the internal switch is limited to 1.5 A
- The voltage at SW1 and SW2 must be lower than the supply voltage
- The voltage at SW1 must be higher than the voltage at SW2