ABB ConVac Installation And Operation Instruction Manual page 19

I N S T A L L A T I O N
49
-XDB
1
-XDB71
13 13
-BGT2 -BGT1
14 14
-QAC
-XDB71 -XDB71
2 3
50 51
-XDB
The above is an example of the electrical
diagram of the contactor standard circuit of
different specifications, which may vary
according to product update or engineering
non-standard customization.
Operating state shown
The diagram illustrates the following conditions:
• Contactor open and in working position
• Circuits de-energized
• Fuse installed and not blown
Description of diagram figures
Fig.1 Control circuits of electrical latching
contactor
Fig.2 Control circuits of mechanical latching
contactor
Fig.3 VT Self-supplied circuit
Fig.4 Circuit of locking electromagnet on
contactor truck
Fig.5 Auxiliary contacts
Fig.6 Signaling circuit of contactor in the
racked-in and isolated position
Fig.7 Electric operation counter
Fig. 8 Electric-drive circuit for truck
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
52
55
4
7
-XDB71
-XDB71
23 23
53
-BGT2 -BGT1
-BGT1
24 24
54
-XDB71 -XDB71
-XDB71
5 6
8
53 54
56
-MBC
-AA
-PGC
-BGF1， -BGF2 =Signaling contact for fuse status
-RiMe
-BGB1...6 =Contactor auxiliary contacts
-BGT1
-BGT2
-BGT3
-RLE2
-T1
-F301
-X301
-MAT
-RLM
Incompatibility
The circuits indicated by the following figures
cannot be supplied at the same time in the same
contactor：
1 – 2
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.
6
57
9
-XDB71
53
-BGT2
54
-XDB71
10
58
1 40
=Closing coil
=Power module
=Electrical operation counter
=Mechanical latching device
=Contacts for electrical signaling of
contactor in racked-in position
=Contacts for electrical signaling of
contactor in isolated position
=Contacts for electrical signaling of
truck status
=Locking magnet， when de-energized
it mechanically prevents contactor
from racking in or racking out
=Secondary coil of VT
=Protection fuse of VT secondary side
=Connection line
=Motorized truck of contactor
=Mechanical interlock (or equal)
2 – 3 4 – 8
19