SNA 4043K/KM/KE, SNA 4044K/KM
MONITORING OF EMERGENCY STOP, SAFETY GATES AND LIGHT BARRIERS
APPLICATIONS
• Protection of people and machinery
• Monitoring of emergency stop applications
• Monitoring of safety gates
• Monitoring of light barriers
• Up to PL e / Category 4 (EN ISO 13849-1)
• Up to SILCL 3 (EN 62061)
FEATURES
• Stop Category 0 according to EN 60204-1
• Single-channel or two-channel control
• Automatic start
• Manual reset without monitoring
• Cross monitoring
• 3 to 4 enabling current paths
] Y t L
FUNCTION
Emergency stop and safety gate monitor The safety switching devices of our SNA product line are used to monitor safety sensors (emergency stop buttons, safety gate switches, etc.), feature a large number of safety switching contacts (3 NO contacts/1 NC contact or 4 NO contacts) with a total width of only 22.5 mm at a constant current of up to 8 A. They can be implemented in the extended temperature range up to 65° C.
•Automatic start – Reset input S34 is connected to safety input S11. To monitor external contact blocks (EDM), their NC contacts must be connected in series between S34 and S11.
•Manual start without monitoring – Reset input S34 is connected to safety input S11 via a RESET button. To monitor external contact blocks (EDM), their NC contacts must be connected to the RESET button in series.
•Monitoring of light curtains – The KM device types are especially suitable for the monitoring of very fast tactile switching operations, for example in safety light curtain applications. Very short switch-off procedures of a few milliseconds are detected reliably and lead to the switching off of the internal relays.
CIRCUIT DIAGRAM
SNA 4043K/KM |
SNA 4043KE |
SNA 4044K/KM |
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
44 . safe RELAY
Loading...