9
EN
SLC 425I
Operating instructions
Safety light curtain
2.9.5 Saving the data
After the reconfiguration, the data to be saved are prepared by selec-
ting the button "Save settings". To avoid unintentional saving of the
data, every intentional save procedure must be confirmed by clicking an
additional button
"Confirm within 10 seconds by clicking this button"
within 10 seconds
If the change is confirmed within 10 seconds, the new configuration
is transferred to the SLC 425I safety light curtain. If it is not confirmed
within this timeframe, the settings that were saved before the change
was made will be maintained without any change.
After the data transmission, the following confirmation is displayed. You
are simultaneously asked to save the configuration data in the form of
a text file.
This saving procedure is recommended so that configuration changes
can be reproduced at a later moment. Click the (yes) button with your
mouse to confirm.
You now can save the configuration setting onto your PC or laptop.
2.9.6 Muting applications
Arrangement of the muting sensors
MS1
MS2
MS3
MS4
Material
Muting lamp
Belt
Reflektor
Muting Sensor
SLC 425I-E/R
Reflector
Muting sensor
SLC 425I-E/R
MS1
MS2
MS3 MS4
S
E
S3
S2
S1
S1
S2
Material
Carrier
Belt
S1 = distance of the inner MS to SF
S2 = distance between two MS
S3 = material length
MS 1 = muting sensor 1
MS 2 = muting sensor 2
MS 3 = muting sensor 3
MS 4 = muting sensor 4
BWS = ESD (electro-sensitive safety device)
S = transmitter; E = receiver
VB= belt speed (m/s)
Minimum distances muting sensors
For the evaluation of the signals (MS) in the control system, a minimum
distance is required for the muting sensors.
The minimum signal length between the sensors, which are fitted
closest to the SLC 425I, must be at least 50 ms. This corresponds to a
minimum distance of 100 mm at a belt speed of 2.0 m/s.
The minimum signal length of the outer sensors must be over 50 ms.
The signal propagation delay between the muting sensors may be 3
seconds at the most (depending on the chosen setting).
The mounting distance of the inner sensors to the protection field of the
SLC 425I must be chosen as small as possible.
The sensors (transmitter/receiver) of the SLC 425I must be fixed as
close as possible to the conveyed material to avoid the creation of
gaps. Otherwise, there is a risk that persons can slip between the
material and the MS arrangement into the hazardous area during the
muting cycle.
In case of different material widths, the gap between the sensors (trans-
mitter/receiver) of the SLC 425I and the material must be protected with
an additional cover.
Muting with 2 sensors, parallel arrangement
The arrangement shows the muting application with two parallel
arranged muting sensors. This arrangement enables the material to be
transported in only one direction, out of the hazardous area.
MS1
MS2
S
E
S3
S2
S1
Hazardous area
Additional safety guard
Carrier
Belt
Material
S1 = distance MS 1 to SF
S2 = distance MS 1 to MS 2
S3 = material length
MS 1 = muting sensor 1
MS 2 = muting sensor 2
S = transmitter; E = receiver
VB= belt speed (m/s)
SF = protection field
S3 > S1 + S2
S1 = belt speed VB (m/s) * 0.05 s
The muting cycle is as follows:
MS2- MS1- SF- end
Selectable options:
Belt stop, override, protection ield area
Factory setting
Shortened muting cycle, i.e. the muting
cycle is terminated when the protection ield
is released.
This arrangement is only authorised when the muting sensors
are installed inside the hazardous area.
