Function Diagram; Block Diagram; Approvals And Markings; Applications - DOLD SAFEMASTER LG 5925/900 Mode D'emploi

Safety Technique
SAFEMASTER
Light Curtain Controller
LG 5925/900
LG 5925/900

Function Diagram

button on
light curtain
output
K1
K2

Block Diagram

S12 S22
A1(+)A2(-) S11
Overvoltage and
Monitoring logic
short circuit prot.
K2
24V
Power K2
S21
M6666
All technical data in this list relate to the state at the moment of edition. We reserve the right for
technical improvements and changes at any time.
M5765
S33 S34 13 23 33 41
K1
K1
K2
K1
14 24 34 42
• According to
- Performance Level (PL) e and category 4 to EN ISO 13849-1
- SIL Claimed Level (SIL CL) 3 to IEC/EN 62061
- Safety Integrity Level (SIL) 3 to IEC/EN 61508 and IEC/EN 61511
• According to EN 50156-2 for furnaces
• For light curtains with symmetric or asymmetric outputs
adjustment with switch S1
• Output: max. 4 NO contacts, see contacts
• Single and 2-channel operation
• Line fault detection on On-button
• Manual restart or automatic restart, switch S2
• LED indicator for state of operation
• LED indicator for channel 1 and 2 and power
• Removable terminal strips
• Wire connection: also 2 x 1.5 mm
2 x 2.5 mm solid DIN 46 228-1/-2/-3/-4
2
• As option with pluggable terminal blocks for easy exchange
of devices
- with screw terminals
- or with cage clamp terminals
• Width 22.5 mm

Approvals and Markings

Applications

Protection of people and machines
• Light curtain controller for light curtains with selftesting (Type 4)
according to IEC/EN 61 496-1
• Usage in furnace application in continuous operation acc. to EN 50156-1

Indicators

upper LED:
lower LEDs:

Notes

Line fault detection on On-button:
The line fault detection is only active when S12 and S22 are switched
simultaneously. If The On-button is closed before S12, S22 is connected
to voltage (also when line fault across On-Button), the output contacts will
not close. A line fault across the On-button which occurred after activation
of the relay, will be detected with the next activation and the output con-
tacts will not close.
When using light curtains with asymmetric outputs (one output + switching,
one output - switching) the MINUS switching output has to be connected
to S22 and the Plus switching to S12.
13
stranded ferruled, or
2
A025518
Canada / USA
on when supply connected
on when relay K1 and K2 energized
LG 5925/900 / 26.02.18 en / 972