Standard Fittings - ABB VM1 Installation And Service Instructions Manual

6.9. Standard fittings

6.9.1. Standard fittings for circuit-breakers
The basic versions of the fixed circuit-breakers are three-pole
and fitted with:
– closing pushbutton (SC1)
– opening pushbutton (SO1)
– mechanical operation counter
– mechanical signalling device for circuit-breaker open/closed
– device for manual emergency opening
– crank handle for manual emergency opening (the quantity
must be defined according to the number of pieces of
apparatus ordered)
– lamp signalling "READY" for the operation (PRDY)
– capacitor/s for storing energy for the operation
– mobile connector for direct connection to the sockets of the
electronic module, to cable the auxiliary circuits
– ED2.0 basic version control module. Two types of feeders
are available:
• Type 1: 24 ... 48 V AC / 24 ... 60 V DC
• Type 2: 100 ... 240 V AC / 110 ... 250 V DC
Preparation of the basic ED2.0 version control module
1) signalling contacts without potential, fitted with relays,
with the following functions (for the characteristics of the
contacts without potential see par. 8.5):
– N. 1 contact signalling circuit-breaker open (DO1)
– N. 1 contact signalling circuit-breaker closed (DC1)
– N. 1 contact signalling circuit-breaker ready for the
operation (capacitors charged and state of the circuit-
breaker checked) (DR)
– N. 1 contact signalling circuit-breaker not ready for the
operation (DN, normally closed)
– N. 1 transient contact with momentary closing during the
opening operation (DOR).
with the CiRCuit-bReakeR not SuPPlied
(without auxiliaRy PoweR SuPPly) theSe
ContaCtS aRe oPen, exCePt foR the
ContaCt Signalling CiRCuit-bReakeR not
Ready foR the oPeRation (dn).
note
2) binary inputs (logical inputs) for remote control:
– N. 1 input for closing command (-SC2) (top logical input
activated)
– N. 1 input for opening command (-SO2) (top logical input
activated)
– N. 1 input for additional opening command (-SO3) (top
logical input activated)
– N. 1 input for circuit-breaker opening on direct command
from the PR512 protection release (-SO5) (top logical
input activated)
– N. 1 input for lock on closing command (the same
function as the one carried out by the locking
electromagnet in the mechanical drive of the VM1 circuit-
breaker) (-SL1) (bottom logical input activated).
Gli ingressi binari possono essere alimentati come segue:
• 24 ... 240 V AC (tolerance – 15% ... + 10%)
• 24 ... 250 V DC (tolerance – 30% ... + 10%).
The minimum impulse time for it to be considered valid is
20 ms.
The functions carried out by the control module are:
1) auto-trip following detection of wrong circuit-breaker state
(WRONG POSITION AUTO-TRIP)
2) auto-trip following lower capacitor charging threshold than
the minimum value required for the opening operation
(ENERGY FAILURE AUTO-TRIP)
3) anti-pumping relay function (ANTIPUMP)
4) priority opening function (TRIP-FREE)
5) checking the capacitor load voltage with auto-shutdown of
the feeder when the maximum charging level is exceeded
6) reclosing function (RECLOSE)
7) management of No. 10 opening attempts (in the case of
10 unsuccessful attempts the control module blocks).
Some of these control module functions can be disabled by
means of dip-switches present on the card (see par. 7.1.7).
8) isolating contacts
9) cord with connector (plug only) for auxiliary circuits, with
striker pin which does not allow the plug to be inserted
in the socket if the rated current of the circuit-breaker is
different from the rated current of the panel (only for ABB
UniGear type switchgear).
10) racking-in/out lever (the quantity must be defined
according to the number of pieces of apparatus ordered)
11) truck locking electromagnet (only only for ABB UniGear
type switchgear).
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