Device description
Leuze electronic
MSI-SR4B
9
3.1
Device overview
• 1- or 2-channel E-Stop circuit
• Cross-circuit recognition
• 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 the start-up and fault analysis.
1
LED “Supply”
2
LED “K1”
3
LED “K2”
4
LED “Reset”
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
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com