Product Description; Function Diagram; Block Diagram; Approvals And Markings - DOLD SAFEMASTER LG 5944 Mode D'emploi

Safety Technique
SAFEMASTER
Safety Edge Module
LG 5944

Product Description

The safety edge module LG 5944 monitors safety edges with a permitted
switching current of ≥ 10mA. It enables or disables a safety circuit and
can be used to protect men and machine. To avoid a damage of the sa-
fety edges by excessive currents, the current provided by the LG 5944 is
limited to 10 mA even in the case of a short circuit.

Function Diagram

On-button
Safety edge
K1
K2

Block Diagram

A1(+) A2 ST1 ST2 M1 M3 M4 S33 S34
Overvoltage and Monitoring
short circuit protection
K1
24V
PWR K1
M2
M9469_a
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.
M9468
13 23
K1
logic
K2
K2
K2
14 24
Your Advantages
• Current limitation protects the connected safety edge against
electrical destruction by overcurrent and short circuit
• Universal usage with safety edges with different allowed
switching currents (also for lower switching currents)
• Pluggable terminal blocks for easy exchange
Features
• According to
- Performance Level (PL) e and category 3 to EN ISO 13849-1
- SIL Claimed Level (maximum SIL) 3 to IEC/EN 62061
- Safety Integrity Level (SIL) 3 to IEC/EN 61508
• Output: 2 redundant safety outputs
• Line fault detection on On-button
• Manual restart or automatic restart, switch S2
• Indication for operating condition
• LED indicator for channel 1 and 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

not pressed
pressed

Indicators

Green LED PWR:
Green LED K1:
Green LED K2:

Circuit Diagram

A1
(+)
S33 S34 ST1 ST2
A1(+)
M1
M2 K1
M3
M4 K2
A2
M1 M2
A2

Connection Terminals

Terminal designation
A1 (+)
A2
M1, M2, M3, M4
ST1, ST2
S33, S34
13, 14, 23, 24
13
Canada / USA
On, when supply connected
On, when relay K1 energized
On, when relay K2 energized
13 23
13 23
14 24
M3 M4
M9276_a
14 24
Signal description
+ / L
- / N
Measuring input
Connections for On-button
Connections for Test-button
Forcibly guided NO contacts for
release circuit
LG 5944 / 10.05.21 en / 394A