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Light Curtains (switch 1 in position 1); Application Example
L+
A1+
S11 S12 S14 S13
BH5910
A2-
L -
Pic. 6: Light curtains, with 2 LCs, manual start; (switch 1 in position 1, switch 10 in position 1)
Light Curtains and E-Stop (switch 1 in position 2)
In this function the unit is always set to 2 LCs and 1 e-stop loop. Open
(unused) inputs (S21/S22 and S23/S24) have to be linked with a wire bridge.
K1 and K2 can only be activated, if no LC is interrupted and the e-stop
loop is closed.
After an e-stop or power failure the unit has to be reset with manual start.
If both channels of an LC or e-stop loop have different signals for more then
50 ms the outputs K1 and K2 are switched off and the unit gives failure
code 7. This failure is stored and can only be reset by disconnecting the
auxiliary supply.
trans-
trans-
mitter
mitter
LC 1
LC 2
S21 S22 S24 S23
48
13
23
failure state
S31 S32 S34 S33
S41 S42 S44 S43
K1
K2
33
34
24
14
machine enabling
Settings on switch 10
Switch
No. of
Type of
10
LCs
control
0
4
2-channel light curtains
1
3
2-channel light curtains Manual start
2
3
2-channel light curtains
3
3
2-channel light curtains Manual start
4-9
position not allowed (failure 5)
Terminal designation
Ter-
Light curtains / E-stop
minal
S11
not connected
S12
LC 1
S13
not connected
S14
LC 1
S21
not connected
LC 2
S22
S23
not connected
S24
LC 2
S31
S32
E-stop
S33
S34
S41
S42
S43
Start button
S44
Semiconductor outputs
Output
Flashing signal
One LC interrupted or E-stop but-
48
ton pressed or failure in feedback
circuit or failure in start circuit
58
Wait for start button
35
start
58
waiting for start
Feedback circuit for
Type of
start
external contactors
Auto-Start
Auto-Start
Feedback circuit for
external contactors
link S11-S12
without LC1
link S13-S14
without LC 1
link S21-S22
without LC 2
link S21-S22
without LC 2
Feedback circuit
Continuous signal
Relay K1, K2 active
BH 5910 / 23.06.22 en / 594A
M8433_a
no
no
yes
yes
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