Eaton PDI WaveStar TFA STS 250-600A, Installation And Operation Manual

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Eaton PDI WaveStar TFA Static Transfer Switch Installation and Operation Manual P-164001113—Rev 01 133
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BCMS Branch Circuit Monitoring System.
BMS Building Management System.
dBA Decibel A-weighting.
IRIG time codes Inter-Range Instrumentation Group time codes.
KAIC Kilo Ampere Interrupting Capacity, or Thousand Ampere Interrupting Capacity, a rating of the
maximum short-circuit or overload current that a circuit breaker can safely interrupt.
LL RMS Line-to-line, root mean squared.
MCCB Molded case circuit breaker.
MCSW Molded case switch.
Modbus RTU Modbus Remote Terminal Unit, the basic Modbus protocol.
Modbus TCP/IP Modbus RTU messages wrapped in TCP/IP protocol, providing faster communications than
Modbus RTU.
NC Normally closed; refers to the normal state of a dry contact when not signaling an event. The
dry contact opens to signal an event.
NO Normally open; refers to normal state of a dry contact when not signaling an event. The dry
contact closes to signal an event.
PIN Personal Identification Number, used to identify users and track their activities. Each user
PIN is associated with a user name, access authorization, and a password.
POG Power or Gate.
Power or Gate Power or Gate (POG) is the faster of the two STS transfer algorithms, but does not reduce
transformer inrush as does the VSS algorithm. See also
Volt Second Synchronizing .
ROI Redundant Operator Interface.
SAS Simple Algorithm Switch.
SAS Board A logic board that backs up the Monitor logic. The SAS board monitors transfers and takes
over a transfer operation if it senses that the Monitor is not functional. The SAS board has a
simpler transfer algorithm than the Monitor’s VSS or POG algorithms.
SCR silicon-controlled rectifier.
Silicon-controlled rectifier Semiconductor power-switching element used in the WaveStar TFA Static Transfer Switch.
SMTP Simple Mail Transfer Protocol.
SNMP Simple Network Management Protocol.
SNTP Simple Network Time Protocol.
STS Static Transfer Switch.