
PIT es Set10u-5ns (AIDA) basic
Operating Manual PIT es Set10u-5ns (AIDA) basic
1004863-EN-03
| 16
Faults/interference
}
Failure of the LEDs at the E-STOP pushbutton
When more than 1 red LED is defective, one of both safety contacts of the E-STOP
device will open.
Remedy: Replace the device.
}
Input voltage at channel 1 and channel 2 too low
When the input voltage is too low, one of the two safety channels of the E-STOP device
will open.
}
Interruption GND
When the connection to GND is interrupted, one of the two safety contacts of the E-STOP
device will open.
}
The operating statuses of the lighting are:
– Permanent red illumination of the actuator
– Permanent yellow illumination of the bevelled protective collar
– Flashing yellow illumination of the bevelled protective collar after operating the E-
STOP device
With all other statuses the wiring must be checked and the E-STOP device must be ex-
changed, if necessary.
Care and maintenance
During operation, the light sources lose brightness. The device is equipped with sufficient
brightness for a service life of 20 years. Check at regular intervals whether the lighting of
the E-STOP pushbutton is still clearly visible, however at least once per year as part of the
function test. Dust, soot and other deposits have an influence on brightness. If necessary,
the E-STOP pushbutton must be cleaned or the device must be exchanged.