58
Eaton PDI WaveStar TFA Static Transfer Switch Installation and Operation Manual P-164001113—Rev 01
77..33..22
EEnnhhaanncceedd C
Coonnttrraaccttoorr B
Booaarrdd
The optional Enhanced Contractor Board has additional connectors of the same type found on the Basic
Contractor Board as well as additional high-end interface options (See
NOTE
Remote relays can accept dry contacts rated up to 2A/250V.
The Contractor Boards have multiple applications in Eaton products and not all connections are supported on
the TFA STS. The following connections are not currently supported on this product:
•
Inter-Range Instrumentation Group (IRIG) time codes
•
Cell-phone modem connection (discontinued)
•
9600 baud modem connection (discontinued)
77..33..33
M
Mooddbbuuss R
RTTU
U U
Uppssttrreeaam
m C
Coonnnneeccttiioonn
Both Contractor Boards have connections for RS422/RS485.The Modbus RTU RS422/RS485 interface is an
isolated interface with soft bias.
The Modbus RTU interface should be configured for baud rate, parity, and address on the
Settings
screen (See
paragraph
). The address range is 1 to 247 and the address of each device must be unique.
Connect Modbus RTU wires to Modbus terminal(s) on a Contractor Board. The Basic Contractor Board has only
an upstream connection. Connectors are paralleled for daisy-chaining. The Enhanced Contractor Board also has
two paralleled upstream connectors. (The downstream connection is for a Branch Circuit Monitoring System
(BCMS) connection to the STS.)
4-wire Modbus RTU is the default. For upstream 2-wire Modbus RTU, do one of these:
•
Basic Contractor Board: Jumper together plus connections (RX+ to TX+) and minus connections (RX- to
TX-).
•
Enhanced Contractor Board: Jumper together plus connections (RX+ to TX+) and minus connections (RX-
to TX-) on the upstream connectors.
•
Enhanced Contractor Board: Place jumper on W2-W3.
•
Monitor PCB: place jumper on the Monitor back panel at E2-E3. (Placing this jumper will set 2-wire
Modbus for either Contractor Board.)
77..44
EEtthheerrnneett C
Coonnnneeccttiioonn
A customer network Ethernet cable can be connected to a terminal to the right of the Contractor Board. (See
). The Ethernet connection allows you to run TCP/IP, Modbus TCP/IP, HTTP for the web server,
SNMP, SNTP for time synchronization, and SMTP for email summary alarm alerts.
describes configuration for these options. Use the
Settings
screen to
set Ethernet parameters (see paragraph
).
77..55
D
Drryy C
Coonnttaacctt S
Siiggnnaallss
77..55..11
D
Drryy C
Coonnttaacctt O
Ouuttppuutt S
Siiggnnaallss
Contractor Board remote relays signal status and alarms through closed dry contacts, shown in
. There
are three predefined relay lists. Remote relays can be customized during setup to turn on for other points in the
STS points list.
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