Eaton 93PM User And Installation Manual

Also see for 93PM IBC-L: User and installation guide Manual Installation and operation manual User and installation guide User and installation guide

Contents

ECAN provides a means for communication between the UPSs in a parallelsystem. The system will continue to share load and protect the load when thisnetwork failsBypass Pull-ChainBypass Pull-Chain is an open collector signal that goes low when the bypassstatic switch of any UPS is online. When External CAN (ECAN) is down, thepull-chain is low and the UPS is online, the UPS locks to and transfers to thebypass mode. Service personnel can manually short this signal in some rarefailure modes to force the system transfer to bypass.Signal Inputs ActionsEach UPS has maximum 8 signal inputs, 5 native and 1 in each MiniSlot whenusing a suitable connectivity device. These inputs can be configured with actionitems. The following action items affect all the UPSs in the system. When anaction item is active on a UPS and the MOB is closed, the action item istransmitted on the ECAN to all the UPSs. All the UPSs react in the samemanner as if the action item was active on that UPS.Wiring the EPO switch in parallelIt is recommended to use separate EPO circuits for each parallel unit.5.7.3 Installing bypass control wiring• During the installation, follow all the safety instructions given in thisdocument.• A 12-pin terminal block for external parallel control signals is accessible onthe right side of the communication interface, on the top section of the UPS(see Figure5.7.3).• The Phoenix Contact FRONT-MSTB 2,5/12-STF-5,08 plug component shallbe used for cable wiring termination.Figure 29. Communication interfaces1 External parallel connectorEaton 93PM UPS 30–200 kVA User's and installation guide© Eaton Corporation plc 2017. All rights reserved. Revision: 005 Document ID: P-164000249 76 (126)