We recommend the setting of the following special functions. Thus you will increase the protective function
and the availability of the muting application.
5.9.3 Restart Interlock
The restart interlock prevents automatic conveyor start after voltage interruption or material jam.
The restart interlock must be wired according to the wiring diagram on page 17. When delivered the function
is activated.
The control switch must be installed outside of the danger zone so that the zone can be monitored from all sides.
The control switch must be activated after each voltage or protective field interruption or when an error in the
muting cycle occurs. Release is only possible when none of the sensors is dimmed. A status LED on the
receiver indicates when the control switch must be activated.
The function can be deactivated with the mouse pointer. In this case the user must ensure this function
with his application.
Attention !
Deactivating the restart interlock may start an automatic muting cycle. People can now step into the
danger zone and people in the danger zone may be severely injured!
5.9.4 Conveyor stop
The function can extend the muting cycle duration in case of an unintentional conveyor stop or material jam and
thus prevent overflow. The muting function can be prolonged unit the interruption has been removed.
Afterwards the normal muting cycle can continue as specified.
The Conveyor stop input is provided as signal from the machine control. If the function is activated, a signal of
+ 24 V/DC must be connected in non-operative state. A change of state of the muting sensors (switch
output) while the function is active switches the muting function off.
When delivered the function is not activated. The conveyor stop time can be set between 1 and 30 minutes.
For applications with very long muting cycle duration the conveyor stop time can be prolonged by max. 18 hours.
5.9.5 Muting cycle shortened
A normal muting cycle is terminated by a muting sensor as follows:
- Muting with 2 sensors, diagonal arrangement, after release of sensor MS 2
- Muting with 4 sensors, parallel arrangement, after release of sensor MS 3
A very long muting cycle duration produces a time window with bridged protective field, during which the
object is between the protective field and the muting sensor MS2/MS 3.
Activating the function means shortening the muting cycle. The bridging is terminated as soon as the material
has passed the protective field of SLG 425IP (protective field free).
The function is always active in an application with 2 muting sensors in parallel arrangement. In an application
with 2 diagonal sensors or 4 parallel sensors the function can be activated using the mouse pointer.
A new muting cycle can only be started when none of the muting sensors are dimmed.
5.9.6 Override
Use this function to bridge the outputs of the SLG 422/425I-P in case of an interrupt (voltage interrupt, material jam).
The function has a time restriction and is expressly intended for the removal of the material jam
(muting sensor or protective field dimmed).
When this function is activated the control switch can be used (release restart interlock) to start a material
transport.
The control switch can be activated switching ON-OFF-ON. The time sequence for the start (ON-OFF-ON)
with a minimum duration of 100 ms up to a maximum duration of 1.5 sec must be taken into consideration.
The Conveyor stops as soon as the material jam has been removed (protective field and muting sensors no
longer dimmed. To start a new muting cycle you must release the restart interlock by activating the same
control switch once (ON-OFF).
The muting light blinks (2 Hz) to signal the interruption of the muting cycle. When delivered the function
is not activated.
Subject to technical changes
Page 11
Safety light grid SLG 422/ 425I-P
