ABB ConVac Installation And Operation Instruction Manual page 16

16 C O N V A C V A C U U M C O N T A C T O R I N S T A L L A T I O N A N D O P E R A T I O N I N S T R U C T I O N
The contactor circuits are illustrated in the
diagrams below by way of example. In any case,
in view of product upgradation and for specific
applications, it is always useful to refer to the
electric circuit diagram provided with each
piece of apparatus.
Operating state shown
The diagram illustrates the following conditions:
• Contactor open and in working position
• Secondary circuits de-energized
Description of diagram figures
Fig.1
Fig.2
Fig.5
Control circuits of electrical latched
contactor
Control circuits of mechanical latched
contactor
Auxiliary contacts
Key symbols
□ =Reference number of the diagram
figure
-XDB... =Connectors for the contactor circuits
-QAC =Contactor
-SFC =Push-button or contact for contactor
closing
-SFO =Push-button or contact for contactor
opening
-KFA =Auxiliary control relay or contactor
-MBC =Closing coil
-AA =Power module
-BGB1...6 =Contactor auxiliary contacts
-RLM =Mechanical interlock (or equal)
Notes
A) The contactor is delivered complete with the
sole applications specified in the ABB order
confirmation. Consult the catalog of the
apparatus when making out the order.
B) Control command duration (-SFO and -SFC) at
rated voltage Ua Fig. 1 and Fig. 2: -SFC minimun
300 ms, -SFO minimum 300 ms.