User Manual, 400 A Owner's manual

Rockwell Automation Publication 1608M-UM001A-EN-P - September 2013 15
Chapter 3
Communications
Remote Diagnostics and
Remote Bypass
Relay dry contacts are available for remote monitoring of the state of the Bypass
Circuit Breaker CBB and the Input Circuit Breaker CBI shunt-trip condition
(See Figure 7
). In addition, a customer-supplied relay may be used to remotely
command a Seamless Bypass operation, as described in Automatic Bypass
Switchboard Operation on page 22. These functions are available from terminal
block TB1 located in the upper compartment of the bypass switchboard. See
Figure 9
and Figure 6 for recommended conduit entry location.
Figure 7 - Schematic Diagram - Status Relay Contacts
CBB Contacts
(Bypass Circuit Breaker)
"Normal" position for the Bypass Breaker is defined as the breaker being OFF, or
Open. As such, the Normally-Open contacts are open when the Breaker is open;
the Normally-Closed contacts will open when the breaker is closed.
Example: Normal run: CBB will be Open; therefore TB1/11B will be electrically
connected to TB1/10B.
K1
5
13
6
2
4
78
CBB
N/C
CBB1
N/O
TB1
terminal block
NC
1
A
C
2
A
NO
3
A
NC
1B
C
2B
NO
3B
NC
4
A
C
5
A
NO
6
A
NC
4B
C
5B
NO
6B
.
7B
.
8B
.
9B
NC
10B
C
11B
NO
12B
unused
7
A
unused
8
A
unused
9
A
NC
10A
C
11A
NO
12A
NC
13B
C
14B
NO
15B
NC
13A
C
14A
NO
15A
Customer-Supplied Contact:
Close to command
Seamless Bypass