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Indicator Description

Indicator Description

Indicator Description
US (green)

Coupler power indicator:

① Green steady on: US powered normally;

② Off: US not powered;

③ Yellow indicator steady on: US undervoltage under normal power supply (indicated when below 20 V)

Note: When UA is powered normally and US is not powered, the US indicator does not light red as an indication but remains off

UA (green)

Peripheral power supply indicator:

① Green steady on: UA powered normally;

② Off: UA not powered;

③ Yellow indicator steady on: UA undervoltage while US is powered normally (undervoltage is indicated when the voltage drops below 20 V)

Note: When US is powered normally and UA is not powered, the UA indicator lights red as a reminder

BF (red)

Network communication indicator:

Steady on: network communication failure;

Off: network communication normal;

SF (red)

Flashing (1 Hz): IO-Link configuration error; the configured bytes are fewer than the slave properties (input/output byte count) (at the same time, the 00 red indicator of the corresponding port flashes at 1 Hz)

Flashing (5 Hz): IO-Link slave digital DO output short circuit

Off: no error.

XF1 (green)

XF1 port communication indicator: the green indicator flashing indicates that the XF1 port is connected for communication.

XF2 (green)

XF2 port communication indicator: the green indicator flashing indicates that the XF2 port is connected for communication.

00 indicator of X01~X08 (IO-Link mode)

IO-Link communication indicator:

① Green indicator steady on: IO-Link communication connection normal;

② Green indicator flashing (1 Hz): IO-Link communication connection abnormal;

③ Green indicator off: IO-Link not enabled

④ Red LED flashing (5 Hz): IO short circuit on the IO-Link digital slave

⑤ Red indicator steady on: IO-Link PIN4 communication line short circuit

01 indicator of X01~X08 (IO-Link mode)

PIN2 signal indicator

In Class A mode:

① Green indicator steady on: PIN2 has PNP signal input or output

② Green indicator off: PIN2 has no PNP signal input or output

③ Red indicator steady on: PIN2 short circuit

In Class B mode:

① Green indicator steady on: PIN2 has 24 V output

② Green indicator off: PIN2 has no 24 V output

③ Red indicator steady on: PIN2 short circuit

00 and 01 indicators of X01~X08 (PNP input mode)

00 indicator:

① Green indicator steady on: PNP signal input present on PIN4

② Green indicator off: PIN4 has no PNP signal input

 

01 indicator:

① Green indicator steady on: PIN2 has PNP signal input or output

② Green indicator off: PIN2 has no PNP signal input or output

③ Red indicator steady on: PIN2 short circuit

 

00 indicator of X01~X08 (PNP/NPN output mode)

00 indicator:

① Green indicator off: PIN4 has no signal output

② Green indicator steady on: signal output present on PIN 4

③ Red indicator steady on: PIN 4 short circuit

 

01 indicator:

① Green indicator steady on: PIN2 has PNP signal input or output

② Green indicator off: PIN2 has no PNP signal input or output

③ Red indicator steady on: PIN2 short circuit

00 and 01 indicators of X01~X08 (fault status)

IO-Link mode:

00 and 01 red indicators flashing simultaneously (1 Hz): power PIN 1 short circuit

00 Red indicator flashing (1 Hz): IO-Link configuration error

PNP/NPN output mode, PNP input mode:

00 and 01 red indicators flashing simultaneously (1 Hz): power PIN 1 short circuit

 

Last modified: 2026-08-20