Rockwell Automation 1608M MegaDySC User Manual, 208 Volt, One Second Extended Runt - Manual (Page 17)

Rockwell Automation Publication 1608M-UM004A-EN-P - April 2014 17
Chapter
3
Communications
Communication connections enter through the top of the switchboard enclosure
marked CUSTOMER I/O PLATE in
Figure 1 . This plate can be fitted as needed
for conduit entry. Communications terminals are described on the following
pages. The ports are located at the top of the left Automatic Bypass Switchboard
and are shown in
Figure 7 . Use RJ45 port number 5 for the communications
connection.
Figure 7 - Customer I/O terminals
Remote Diagnostics
(TB1 Customer Contacts) Customer-accessible dry contact-closures are available for relaying the state of the
circuit breakers and the state of the MegaDySC system. Connect to terminal
block TB1, located at the top of the left compartment of the Automatic Bypass
Switchboard. See
Figure 8 for connection details. The contact ratings are: 10A @
240VAC Resistive, 7A @ 240VAC Inductive, 10A @ 28V DC resistive and 8A
@ 24V DC inductive.
Figure 8 - Schematic of Customer Dry Contacts
• CBB Closed (CR3A) – Contact is closed when the bypass circuit breaker
(CBB) is closed. Contact is open when CBB is open.
• CBI Closed (CR4A) - Contact is closed when the input circuit breaker
(CBI) is closed. Contact is open when CBI is open.