2.16
SEL-387-0, -5, -6 Relay
Instruction Manual
Date Code 20050919
Installation
Circuit Board Configuration
Main Board
Output Contact Jumpers
to see the layout of the main board and locate the solder
jumpers to the rear of the output contacts. Select the contact type for the
output contacts. With a jumper in the A position, the corresponding output
contact is an a output contact. An a output contact is open when the output
contact coil is de-energized and closed when the output contact coil is
energized. With a jumper in the B position, the corresponding output contact
is a b output contact. A b output contact is closed when the output contact coil
is de-energized and open when the output contact coil is energized. These
jumpers are soldered in place but may be changed in the field.
Note that the
ALARM
output contact is a b contact and that the other output
contacts are all a contacts. This is the normal configuration of these jumpers in
a standard relay shipment. The additional interface boards have slightly
different layout locations for the jumpers relative to the corresponding output
contacts.
Second ALARM Contact Jumper
Note the locations of main board jumper JMP23 and output contact
OUT107
in
, and refer to
to understand the relationship between the
jumper and output contact. The jumper JMP23 controls the operation of
output contact
OUT107
. JMP23 provides the option of a second alarm output
contact by changing the signal that drives output contact
OUT107
.
If jumper JMP23 is installed on the two bottom pins and both output contacts
OUT107
and
ALARM
are the same output contact type (a or b), they will be in the
same state (closed or open). If jumper JMP23 is installed on the two bottom
pins and output contacts
OUT107
and
ALARM
are different output contact types
(one is an a and one is a b), they will be in opposite states (one is closed and
one is open).
Table 2.2
SEL-387 Second ALARM Contact Jumper Position
JMP 23 Position
Output Contact OUT 107 Operation
Second Alarm output contact
(operated by alarm logic/circuitry).
Relay Word bit OUT107 has no effect
on output contact
OUT107
when jumper
JMP23 is in this position.
Regular output contact
OUT107
(operated by Relay Word bit
OUT107
).
Jumper JMP23 comes in this position
in a standard relay shipment.
Disable output contact
OUT107
. If
JMP23 is not installed, output contact
OUT107
is not functional and will remain in
its de-energized state.
Bottom
(Pins 1 and 2)
Top
(Pins 2 and 3)
Neither
Содержание SEL-387-0
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