5
SLC440 Series
SLG440 Series
Operating instructions
Safety light curtain / safety light grid
EN
2.9.1 Protective mode / Automatic
The protective mode switches the OSSD outputs to the ON state
(protection field not interrupted), without external release of a switching
device
Wiring of the receiver
Jumper connection pin 1 with
pin 6
Pin 1
Pin 6
This operating mode generates an automatic restart of the machine if
the protection field is not interrupted
A 24 VDC H-signal at the input of pin 1 leads to a restart of
the system If the 24 VDC H-signal is still present at pin 1
after the self-test, the system switches to setting mode, see
chapter "Setting mode"
This operating mode may only be chosen in conjunction with
the restart interlock (manual reset) of the machine
This operating mode must not be chosen, if persons may
step behind the protection field
2.9.2 Restart Interlock (operation)
The restart interlock (manual reset) prevents an automatic enabling of
the outputs (OSSD's ON state) after switch-on of the operating voltage
or an interruption of the protection field The system switches the
outputs only to ON state, when an external command device (restart
button) generates an enabling signal at the restart input (receiver)
Wiring of the receiver
- Jumper connection pin 5 with pin 6
- Command device (enabling button) at
pin 1
+24VDC
Pin 5
Pin 6
S1
Pin 1
The command devices (enabling button) must be installed
outside of the hazardous area The operator must have a
clear view to the hazardous area when actuating the enabling
button
2.9.3 Restart interlock with double acknowledgement/reset
In applications with access monitoring, a complete overview of the
hazardous areas is often not possible; despite that, a reset of the
command device for the restart interlock outside of the hazardous area
by third parties is at all times enabled, although persons/operators may
are possibly in the invisible area This hazardous situation is avoided by
means of a double reset, ie integration of two command devices inside
and outside the hazardous area
Wiring of the receiver
- Command device S1 at pin 1
- Command device S2 at pin 5
- Pin 6, no signal (input open)
S1
+24VDC
Pin 1
Pin 2
S2
Pin 5
Specification
The operating mode is available, when the parameter setting - double
reset is activated (P 5) See chapter Parameter setting
Sequence for enabling:
1) Actuate command device inside of the hazardous area (S2) and
leave the hazardous area
2) Go through protected field or interrupt at least one beam, then
release protected field
3) Actuate the command device outside of the hazardous area (S1)
Command device S1 can be reset (acknowledged) within a timeframe
of 2 to 60 seconds after the actuation of S2 If the order or the time
requirement is not respected, the process must be repeated
Signalling: LED restart (yellow)
Status
Note
ON
Release of S2 (restart interlock 2) waiting for
signal
flashing
Release of S1 (restart interlock) waiting for
signal
If double acknowledgement is used, neither bridge 1 nor
bridge 2 is set
