26
BH 5910 / 200217 / 190A
Light curtains
(switch 1 in position 1);
Application example
Pic. 6: Light curtains, with 2 LCs, manual start; (switch 1 in position 1, switch 10 in position 1)
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.
Light curtains and E-stop
(switch 1 in position 2)
start
LC 1
LC 2
L+
L -
M8433_a
BH5910
K1
K2
13
23
33
34
24
14
48
58
A2-
A1+
S11 S12 S14 S13
S21 S22 S24 S23
S31 S32 S34 S33
S41 S42 S44 S43
trans-
mitter
trans-
mitter
waiting for start
failure state
machine enabling
Settings on switch 10
Switch
10
No. of
LCs
Type of
control
Type of
start
Feedback circuit for
external contactors
0
4
2-channel light curtains Auto-Start
no
1
3
2-channel light curtains Manual start
no
2
3
2-channel light curtains Auto-Start
yes
3
3
2-channel light curtains Manual start
yes
4-9
position not allowed (failure 5)
Semiconductor outputs
Output
Flashing signal
Continuous signal
48
One LC interrupted or E-stop but-
ton pressed or failure in feedback
circuit or failure in start circuit
58
Wait for start button
Relay K1, K2 active
Terminal designation
Ter-
minal
Light curtains / E-stop
Feedback circuit for
external contactors
S11
S12
not connected
LC 1
link S11-S12
without LC1
S13
S14
not connected
LC 1
link S13-S14
without LC 1
S21
S22
not connected
LC 2
link S21-S22
without LC 2
S23
S24
not connected
LC 2
link S21-S22
without LC 2
S31
S32
E-stop
S33
S34
S41
S42
Feedback circuit
S43
S44
Start button
