Troubleshooting guide
31
ON
ON (NO)
ON
ON (NO)
ON
ON
ON (NO)
ON
ON (NO)
ON
ON
ON (NO)
ON (NO)
ON ON
ON
ON (NC) ON (NC)
ON
ON (NC) ON (NC)
ON
ON (NC)
ON (NC)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
On if both are not activated
Off if both are activated
Off if either are not activated
Off if both are not activated
On if both are activated
Off if either are not activated
Off if both are activated
On if either is activated
On if either is activated
On if both are activated
Off if both are not activated
Off if either not activated
Single Throw
Single Pole
Double Pole
Double Throw
Double Throw
Center Off
Series Circuit
Normally Open Contacts
Parallel Circuit
Normally Closed Contacts
Circuit Diagrams
Fig. 50