Schweitzer Engineering Laboratories SEL-311C - Output Contact Jumpers; Extra Alarm Output Contact Control Jumper; Table 2.2 Output Contact Jumpers and Corresponding Output Contacts

2.23
Date Code 20060320 Instruction Manual SEL-311C Relay
Installation
Circuit Board Connections
Output Contact
Jumpers
Table 2.2 shows the correspondence between output contact jumpers and the
output contacts they control. The referenced figures show the exact location
and correspondence. With a jumper in the A position, the corresponding
output contact is an a type output contact. An a type output contact is closed
when the associated SEL
OGIC
®
control equation is asserted, and open when
the associated SEL
OGIC equation is deasserted. With a jumper in the B
position, the corresponding output contact is a b type output contact. A b type
output contact is closed when the associated SEL
OGIC equation is deasserted,
and open when the associated SEL
OGIC equation is asserted. These jumpers
are soldered in place.
In Figure 2.16, note that the ALARM output contact is a b type output contact
and the other output contacts are all a type output contacts. This is how these
jumpers are configured in a standard relay shipment. Refer to Figure 7.27
and Figure 7.28 for examples of output contact operation for different output
contact types.
“Extra Alarm” Output
Contact Control
Jumper
All the SEL-311C relays have dedicated alarm output contacts (labeled
ALARM—see Figure 2.2, Figure 2.3, and Figure 2.8). Often more than one
alarm output contact is needed for such applications as local or remote
annunciation, backup schemes, etc.
Convert the output contact adjacent to the dedicated ALARM output contact to
operate as an “extra alarm” output contact by moving jumper JMP23 on the
main board (see Table 2.3).
With the jumper in one position, the output contact operates regularly. With
the jumper in the other position, the output contact is driven by the same
signal that operates the dedicated ALARM output contact (see Table 2.3).
Table 2.2 Output Contact Jumpers and Corresponding Output Contacts
SEL-311C
Model Number
Output
Contact Jumpers
Corresponding
Output Contacts
Reference
Figures
0311C00x and 0311C01x JMP21–JMP29
(but not JMP23)
ALARM–OUT101 Figure 2.16
0311C01x JMP17–JMP28 OUT212–OUT201 Figure 2.17