MR380-1 Series Instruction Manual
Page 15 of 35
Microswitch
NO
‘Power’
LED
‘Status’
LED
24V
Digital
Out
5V Digital
Out
Relay Contacts
Not Depressed ON
OFF
Low
< +1V
Low
< +0.5V
NO=Closed
NC=Open
Depressed
ON
ON
Hi
> +20V
Hi
> + 4V
Polarization Change
NO=Open
NC=Closed
Microswitch
NC
‘Power’
LED
‘Status’
LED
24V
Digital
Out
5V Digital
Out
Relay Contacts
Not Depressed ON
ON
Hi
> +20V
Hi
> + 4V
NO=Open
NC=Closed
Depressed
ON
OFF
Low
< +1V
Low
< +0.5V
Polarization Change
NO=Closed
NC=Open
If Microswitch and Controller LEDs are not illuminated as shown, see Section 4 Troubleshooting
for help.
Figure 12. MR380-2 Controller with NO Microswitch: Power On (Left) and Microswitch Depressed (Right)
Figure 13. MR380-2 Controller with NC Microswitch: Power On (Left) and Microswitch Depressed (Right)