ABB VM1 Installation And Service Instructions Manual
Also see for VM1: Installation and service instructionsManualInstruction manualInstruction manual
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266.10. Optional accessoriesThe accessories identified by the same number are alternativeto each other.1 ed2.0 Control moduleThe full option ED2.0 control module is available on requestas an alternative to the basic version ED2.0 control moduleand must be selected during the ordering stage since thepossibility of replacing the basic module is not foreseen.The full option ED2.0 control module is available with twotypes of feeders:• Type 1: 24 ... 48 V AC / 24 ... 60 V DC• Type 2: 100 ... 240 V AC / 110 ... 250 V DCand provides the following signalling, control and operatingfunctions:1) signalling contacts without potential, fitted with relay,with the following functions (for the characteristics of thecontacts without potential, see chapter 7.3.4.).– N. 2 contacts signalling circuit-breaker open (DO1, DO2)– N. 2 contacts signalling circuit-breaker closed (DC1, DC2)– N. 1 contact signalling circuit-breaker ready for theoperation (DR). This is a closed contact when the circuit-breaker is ready for the operation, i.e. when the followingconditions are met:• capacitor charged (the energy stored is sufficient to carryout one closing and opening operation if the circuit-breaker is in the “open” state or one opening operation ifthe circuit-breaker is in the “closed” state),• circuit-breaker in a well-defined state (either “open” or“closed),• positive outcome of the opening and closing coilcontinuity of the magnetic actuator.– N. 1 contact signalling circuit-breaker not ready for theoperation (DN). This contact is of the normally closedtype and therefore, even if there is no auxiliary voltageits indication “the circuit-breaker is not ready for theoperation” is always correct. The indication of circuit-breaker not ready for operation is given when even onlyone of the following conditions occurs:• capacitor not charged (the energy stored is insufficient orthere is no auxiliary voltage),• circuit-breaker in an undefined state (neither “open” nor“closed”)• no continuity of the opening and closing coil of themagnetic actuator.– N. 1 transient contact with momentary closing (for 100ms) during the opening operation (DOR). This contact hasthe same function as the one carried out by the –BB4contact in the mechanical operating mechanism of theVD4 circuit-breaker.n.b. with the circuit-breaker not supplied (without auxiliary power supply)these contacts are open, except the contact signalling circuit-breaker notready for the operation (dn).2) binary inputs (logical inputs) for remote control:– N. 1 input for closing command (-SC2) (top logical inputactivated)– N. 1 input for opening command (-SO2) (top logical inputactivated)– N. 1 input for additional and safety opening command(-SO3) (top logical input activated)– N. 1 input for circuit-breaker opening on direct commandfrom the PR512 protection release (-SO5) (top logicalinput activated)– N. 1 input for lock on closing command (the samefunction as the one carried out by the –RL1 lockingelectromagnet in the mechanical drive of the VD4 circuit-breaker) (-SL1) (bottom logical input activated)– N. 1 input for undervoltage opening command (-S04):The function can be excluded (bottom logical inputactivated).N.B. The binary inputs can be supplied as follows:• 24 ... 240 V AC (tolerance – 15% ... + 10%)• 24 ... 250 V DC (tolerance – 30% ... + 10%).A binary input is considered valid when the impulse appliedlasts at least 20 ms.3) The functions carried out by the control module are:– auto-trip following detection of wrong circuit-breaker stateafter an operation attempt– auto-trip following lower capacitor charging threshold thanthe minimum value required for the opening and closingoperation– anti-pumping relay function– priority opening function in the case of opening and closingcommands being sent at the same time (TRIP-FREE)– checking the capacitor load voltage with auto-shutdown ofthe feeder when the maximum charging level is exceeded– opening for undervoltage. The rated voltage is set (valuesforeseen: 24-30 V AC, 48-60 V DC, 100-127 V AC/V DC220-240 V AC/V DC) and opening can also be delayed (tripdelays foreseen: 0-0.5-1-2-3-4-5 sec). The “lock in open”(the closing command is only accepted after the openingfunction for undervoltage has been reset) and “reclosingenabled” (the closing command is accepted even if theopening function for undervoltage is still active) can also beselected (-SO4)– watchdog of the electronic power circuit with feeder auto-shutdown in the case of overtemperature and/or overcurrent– slow capacitor charging function (the charging powerpasses from 100 watt to 40 watt, doubling the chargingtime. This function is useful when self-supply by means of avoltage transformer is to be made)– monitoring continuity of the opening and closing coils– management of opening attempts: after 10 unsuccessfulopening attempts the control electronics block and the DRand EN signalling contacts are activated to indicate that thecircuit-breaker is not ready for the operation |
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