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

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95-8470 VII-7
EQ2100LIOU LOCAL OUTPUT UNIT
CAUTION
All personnel installing or servicing the LIOU must
wear a grounding strap to avoid generating static
electricity that can destroy or damage integrated
circuits. The circuit boards are shipped in anti-
static plastic bags and should be kept in these
bags until the time of installation. If the circuit
boards are removed from the rack, they should be
replaced in the appropriate bags. Never pack the
boards in styrofoam or plastic pellets.
CAUTION
LIOU modules must not be installed or removed in
a powered-up system. Always disconnect both AC
and battery power before installing the modules.
BACKPLANE WIRING
Power and communication wiring to the LIOU is
connected to the terminal block on the LIOU backplane.
See Figure VII-7.
RS-485 LINK WIRING
The assembly is controlled and supervised by the Local
Control Unit (LCU) using an RS-485 serial
communication link. Up to four LIOU’s can be
controlled by the LCU adding a maximum of 24 output
modules to the system.
The RS-485 link connecting the LCU and LIOU requires
termination at both ends. The LCU provides termination
for the beginning of the RS-485 link. If the LIOU is not
the last unit in the line, termination resistor R1 must be
removed. See Figure VII-7 for location.
Two sets of RS-485 terminals are provided to allow
daisy-chained wiring. “A” terminals are connected to
“A” terminals and “B” terminals to “B” terminals of the
next device on the link.
RS-485 A— Connect one terminal to “A” of
the previous device on the link
and the other terminal to “A” of
the next device on the link.
RS-485 B— Connect one terminal to “B” of
the previous device on the link
and the other terminal to “B” of
the next device on the link.
All devices sharing a common RS-485 link must have a
common power return.
POWER WIRING
Main Power (–) — Connect to the (–) terminal of
the system power terminals on
the EQ2101LCU (terminal A7).
CAUTION
Do not connect a breaker or other disconnect
device to power minus (–) with RS-485
connected. Doing so will damage the RS-485
circuitry.
Main Power (+): Connect to the (+) terminal of
the system power terminals on
the EQ2101LCU (terminal B7).
Auxiliary Power Input (–): Connect to the (–) auxiliary
terminal of the EQ2101LCU
(terminal A6).
Auxiliary Power Input (+): Connect to the (+) auxiliary
terminal of the EQ2101LCU
(terminal B6).
Auxiliary Power Output: These terminals are provided
J3, J4, J5 to distribute 24 vdc auxiliary
power to the auxiliary power
terminals on the release and
signal audible modules.
Maximum total current must
not exceed 8 amperes.
Chassis Ground: Connect to earth ground.
Module Wiring
Wiring to the external devices that are controlled by the
LIOU modules is connected to the terminal strip on the
corresponding module.
P2
J3 J4 J5
P1 P3 P4 P5 P6
–
+
+
–
B
A
RS-485 TERMINATION RESISTOR
RS-485 MAIN AUX
AUX POWER
B1860
Figure VII-7—Wiring Terminals on LIOU Backplane