Leuze MSI-SR4B - Device Overview; Display Elements

Device description
Leuze electronic GmbH + Co. KG MSI-SR4B 9
3.1 Device overview
• 1- or 2-channel E-Stop circuit
• Cross-circuit detection
• Monitoring of external contactors in the button circuit
• Monitored start button (cross connections between the button contacts and earth faults in the button
circuit are detected.)
• Automatic and manual start
• 3 release circuits, 1 NC contact as auxiliary power circuit
• LED displays Power, K1 and K2, Reset
• Operating voltage 24 V AC/DC
• Housing width 22.5 mm
• Removable connection terminal blocks (screw terminals, spring-cage terminals)
3.2 Display elements
The display elements of the safety relay simplify start-up and fault analysis.
1 "Supply" LED
2"K1" LED
3"K2" LED
4 "Reset" LED
Figure 3.4: Display elements of the MSI-SR4B
Table 3.1: Meaning of the LEDs
1
2
3
4
LED Color Description
Supply Green Supply voltage on
K1 Green Relay K1 picked up
K2 Green Relay K2 picked up
Reset Yellow Restart interlock locked