Det-Tronics Eagle Quantum 95-8470-05, Инструкция по эксплуатации

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95-8470 VII-5
Terminal 7 — System power.
When used with the standard
LCU rack (EQ2100LCU),
terminals A7 and B7 are power
input terminals for supplying
the 24 vdc power from the
power supply to the LCU.
When used with the optional
LCU rack (EQ2101LCU),
terminals A7 and B7 are power
output terminals for supplying
isolated power with ground
fault monitoring from the LCU
to the main power terminals on
the LIOU and field devices.
Output current must not
exceed 2.8 amperes.
A7 terminal = (–)
B7 terminal = (+)
Terminal 8 — Ground fault monitor.
Terminal B8 (ground fault
monitor) must be connected to
A8 (chassis ground) to ensure
proper functioning of the
ground fault monitoring
circuitry.
IMPORTANT
The chassis ground stud must be connected to
earth ground.
Terminal 9 — RS-485 link.
Connect to the power supply
or LIOU rack RS485 terminals.
Be sure to observe polarity:
Connect A9 terminal to the RS-
485 “A” terminal of the next
device on the link. Connect
B9 terminal to the RS-485 “B”
terminal of the next device on
the link.
All devices sharing a common
RS-485 link must have a
common system power return.
Terminals 10 to 12 — Three unsupervised inputs
to the Logic Controller.
These inputs are typically used
for contact inputs such as
switches, pushbuttons, relay
contacts etc. Wire the
contacts between the “A” and
“B” terminals. These inputs
can be used in the
programmable logic.
Terminal 13 — Remote reset.
Connect a normally open,
momentary closure switch
between terminals A13 and
B13 to reset the gateway
relays from a remote location
when the relays are
programmed for latching
operation.
Terminals 14 to 18 — Gateway relay contacts.
Terminals A14 (NO), =
B14 (COM), =
C14 (NC) , = Relay K1
Terminals A15 (NO), =
B15 (COM), =
C15 (NC) , = Relay K2
Terminals A16 (NO), =
B16 (COM), =
C16 (NC) , = Relay K3
Terminals A17 (NO), =
B17 (COM), =
C17 (NC) , = Relay K4
Terminals A18 (NO), =
B18 (COM), =
C18 (NC) , = Fault relay
Terminals 19 to 22 — RS-232 serial
communication ports.
These two serial ports are
electrically isolated from each
other and from the system.
A19 = Port 2 common (COM).
Connects to “common” of the
other device.
B19 = Port 2 transmit (TXD).
Connects to “receive” of the
other device.
B20 = Port 2 receive (RXD).
Connects to “transmit” of the
other device.