Quincy Compressor QSD 65040-AB Instruction Manual

Quincy Compressor QSD 65040-AB Instruction Manual Manual pdf 37 page image

Section VIII - Power$ync II™ OperationQuincy Compressor® - QSD™ 35The third consideration is the nature of air consumptionwithin the system itself. A system that is subject torapid, cyclic air consumption may require a widerdifferential than one that has a steady air requirement. Aswith the other considerations, improvements in energyefficiency can be obtained by adjusting the pressuresettings to maintain the lowest acceptable steadypressure.NOTECycling more frequently than six times a minutemay cause a high temperature condition that mayresult in a shutdown.Power$ync II ™ is factory set to operate efficiently formost compressed air systems. It has pressure limits basedon its particular configuration. Use the factory setting fora while before making any changes. When makingchanges, document the change and the resulting systempressure and fluctuation. Documenting the changes andresults will allow the compressor to be fine-tuned for aparticular application.Network InstallationPower$ync II™ compressors need to be wired together toform a network that will take advantage of thesophisticated multiple machine control capability builtinto the software. To do this, you will need thefollowing:1) A three-wire cable (Quincy part number 141234-01,-02 or -03 communications cable).2) One cable terminator box (Quincy part number140715).3) Conduit is required for NEMA 4 applications andstrongly recommended for all other applications.The maximum total cable length from the terminator box,through each compressor in the network and to the lastcompressor in line must be less than 600'.Connecting Cable to the Power$ync II ™ Circuit BoardThe first machine in the network will have one cablecoming out of the Power$ync II ™ control enclosure. Allother machines on the network will have one cable in andone cable out. The outbound cable on the last machinewill be connected to the terminator box which must haveaccess to a 110-volt electrical outlet. No cable ends orcrimping tools are required to complete the installation.1) On the first machine in the network, open thePower$ync II ™ control panel by removing the fivescrews on the face. Tilt the hinged face down toexpose the circuit boards and power supply inside.2) Remove one of the hole plugs on the back of thecontrol enclosure. Insert the end of thecommunications cable and bring it to the far right,lower corner of the enclosure. Make certain thatthere are a few inches of extra length at this point.3) Remove 1.5" of the outer insulating cover. Carefullyretract the braided wire shielding to expose the bareground wire and the foil cover for the two insulatedwires.4) Remove excess braided wire shielding, being carefulnot to damage the ground wire.