Light Curtains (Switch 1 In Position 1); Function Diagrams; Application Example - E. DOLD & SOHNE SAFEMASTER C BH 5910 Manuel D'utilisation

Light Curtains (switch 1 in position 1)

With switch 10 the maximum number of LCs (Light curtains) is selected.
Open (unused) inputs (S_1/S_2 and S_3/S_4) have to be linked with a
wire bridge.
K1 and K2 can only be activated, if no LC is interrupted.
If both channels of an LC 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.
The BH 5910 can be used on LCs of type 4 (IEC/EN 61 496-1) or type 2
with self test and crossfault monitoring.
The following function diagrams show the function of one LC. We pretend
that other connected LCs are not interrupted.

Function Diagrams

Auxiliary voltage (A1/A2)
LC
K1/K2 (13-14, 23-24, 33-34)
Output 48 (failure state)
Output 58 (waiting for start)
: off : on : flashing
Light curtains, auto start
Auxiliary voltage (A1/A2)
LC
Start button (S43/S44)
K1/K2 (13-14, 23-24, 33-34)
Output 48 (failure state)
Output 58 (waiting for start)
: off : on : flashing
Light curtains, manual start

Application Example

L+
A1+ S11 S12 S14 S13
BH5910
A2-
L -
Pic. 5: Light curtains, with 4 LCs, auto start; (switch 1 in position 1, switch 10 in position 0)
M8430
M8431
trans- trans-
mitter mitter
LC 1
LC 2
S21 S22 S24 S23
48 13 23
failure state
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
minal
S11 not connected
S12
LC 1
S13 not connected
LC 1
S14
S21 not connected
S22
LC 2
S23 not connected
LC 2
S24
S31 not connected
S32
LC 3
S33 not connected
S34 LC 3
S41
not connected
LC 4
S42
S43 not connected
LC 4
S44
Sorties à semi-conducteurs
Output Flashing signal
One LC interrupted or failure in
48
feedback circuit or in start circuit
58 Wait for start button
trans-
mitter
LC 3
S31 S32 S34 S33 S41 S42 S44 S43
K1 K2
33 34 24 14
machine enabling
34
Feedback circuit for
Type of
start
external contactors
Auto-Start
Auto-Start
Feedback circuit
and /or manual start
link S11-S12
without LCI 1
link S13-S14
without LC 1
link S21-S22
without LC 2
link S23-S24
without LC 2
link S31-S32
without LC 3
link S33-S34
without LC 3
link S41-S42 Feedback circuit
without LC 4 or no connection
link S43-S44
Start button
without LC 4
Continuous signal
Relay K1, K2 active
trans-
mitter
LC 4
58
waiting for start
BH 5910 / 23.06.22 en / 594A
no
no
yes
yes
M8432_a