DCA
Page 6
Setup for the STD DCA.
Figure 2 shows the labeling
used on the front panel of the STD DCA. Figure 3
shows the terminals on a unit equipped with DPDT
relays.
To access the connection terminals for a DCA in the
basic extruded housing (STD, AB, etc.), use a screw
driver to remove the securing screw from the protec-
tive plastic cover on the unit front panel. With the
screw removed, the cover can be removed by hand,
revealing the terminals and the labels depicted in the
illustrations in this manual.
Figure 2.
STD DCA Terminal Locations
NOTES:
1. Each unit is factory-configured for ac or dc power.
2. Each unit is factory-configured for specific current or voltage input.
+IN — CURRENT OR VINPUT
UPPER RELAY NORMALLY
CLOSED — UNC
UPPER RELAY NORMALLY
OPEN — UNO
COMMON — COM
LNO —
LOWER RELAY NORMALLY OPEN
COM — COMMON
LNC —
LOWER RELAY NORMALLY CLOSED
ACC — –DC
AC — +DC
GND
OPTION — +TX FOR TRANSMITTER
EXCITATION, +REF FOR DEVIATION ALARM
-IN — CURRENT OR VOLTAGE -INPUT
UPPER
LOWER
C
DC
URRENT
ALARM
DEADBAND
LOWER
UPPER
ZERO
DCA
