AEG PROTECT 1 Series Operating Instructions Manual

Contents

56The UPS outputs are each connected with the paralleloperation busbar via an isolator. The instructions fromchapter 5 apply here too.The following always holds true for the UPS input and outputconductors: The difference in length in conductors up to 20 mper UPS can be max. 20% and max. 10% for lengths > 20 mper UPS.The jumper installed between “JP1” and “JP2” on theconnection panel of every UPS at the factory must be removed.The UPS output distribution also has to take place according tothe instructions in chapter 5. In particular, make sure that theindividual switching elements are correctly labelled, in order toprevent operating errors later as well. The communication ofthe units switched in parallel takes place via the 25-pin paralleloperation cable(s) included in the scope of delivery.For this purpose, first remove the parallel port covers(no. 5, p. 27/28) and connect the UPS units with each other withone parallel operation cable each. Use one parallel operationcable for 2 units and two parallel operation cables for 3 units (donot create a ring structure!).(Communicative) parallel operating connection... for 2 units: ... for 3 units:After connecting the parallel operation cables, fasten thepreviously removed parallel port covers. Turn these by 180° sothat the slot of the cover is facing downwards.The hardware-related installation is now complete.