PowerWalker VFI 20000-40000TAP 3/3 BI, User Manual

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1-3
1.2 Options and Accessories
Contact an sales representative for information about the following options.
1.2.1 External Battery Cabinet
Battery backup protection is provide by equipping the UPS system with up to four External Battery Cabinets
(EBCs) containing sealed lead-acid, maintenance-free batteries. The EBCs are housed in single, free-standing
cabinets designed for line-up-and-match installation, but may be installed separate from the UPS cabinet.
1.2.2 Parallel System
A parallel UPS system with up to four UPSs can be installed to provide a parallel capacity and/or redundant
system. This load sharing system provides more capacity than a single UPS, and can provide backup,
depending on the load and configuration. In addition, when one UPS is taken out of service for maintenance or
is not operating properly, a redundant UPS continues to supply uninterrupted power to the critical load. A
Controller Area Network (CAN) Bridge provides connectivity for system metering and operational mode
control.
1.2.3 Monitoring and Communication
Mini-Slot Cards – Optional Mini-Slot cards support several protocols, such as WEB/SNMP, RELAY / RS232 and
Modbus. See Chapter 7, “Communication,“ for additional information on monitoring and communication
features.
1.2.4 Dual Input
Dual feed models are available for PowerWalker VFI 3/3 Series UPS. Connectors on dual feed models provide
a separated bypass input to UPS.