D41D

16

Troubleshooting

Table 1: Diagnostic information for safety door switch with auxiliary output

*1. Refer to Teaching.

Status of switch

LEDs

Auxiliary

output

Safety

outputs

Y1, Y2

Note

Green

Red

Yellow

Supply voltage

On

Off

Off

0 V

0 V

Voltage on

Actuated

On

Off

On

24 V

24 V

The yellow LED always signals the presence of an

actuator within range.

Actuated in limit area

On

Off

Flashes

(1Hz)

24 V

pulsed

24 V

The safety door switch must be adjusted before

the distance to the actuator increases and before

the safety outputs are disabled, thus stopping the

machine.

Error warning,

switch actuated

Off

Flashes

On

0 V

24 V

When the error warning is not rectified within 30

minutes, the safety outputs are disabled.

Error

Off

Flashes

On

0 V

0 V

Refer to table with flash codes

Teach actuator

Off

On

Flashes

0 V

0 V

Safety door switch in teaching mode

Tampering protection

time

*1

Flashes

Off

Off

0 V

0 V

10 minutes pause after re-teaching

Error in input circuit

X1 and/or X2

Flashes

(1Hz)

Off

Off

0 V

0 V

When door is open

Error in input circuit

X1 and/or X2

Flashes

(1Hz)

Off

On

24 V

0 V

When door is closed

Error

Errors that, which no longer guarantee the function of the safety

door switch (internal errors) cause the safety outputs to be

disabled within the risk time.

After the rectification of the error, the error message is reset by

opening the corresponding guard door.

Error warning

The auxiliary output can also be used to detect clearance

variations between the safety door switch and the actuator in the

same way as the yellow LED.

An active fault is visualized by the red LED and causes the

auxiliary output to be disabled. The safety outputs are disabled

after a maximum of 30 minutes if the fault is not rectified. This

signal combination, auxiliary output disabled and safety channels

still enabled, can be used to stop the production process in a

controlled manner.

LED indication (red)

Error cause

1 flash pulse

Error output Y1

2 flash pulses

Error output Y2

3 flash pulses

Cross-wire short

between Y1 and Y2

4 flash pulses

Ambient temperature too high

5 flash pulses

Incorrect or defective actuator

Continuous red

Internal fault, with yellow

flashing teaching procedure