EQ2100LCU SERIES
LOCAL CONTROL UNIT
All external wiring to the LCU is connected to the
terminal blocks that are an integral part of the LCU
backplane, extending below the card rack. To access
the terminals, the cover must be removed.
The terminals are arranged in three rows and numbered
from left to right. Row “A” is closest to the bottom of the
board, row “B” in the center, and row “C” on top.
See Figure VII-6 for wiring terminal identification.
Terminals 1 to 3 —
Logic controller relay
contacts:
Terminals A1 (NO),
=
B1 (COM),
=
C1 (NC)
,
= Alarm relay
1D and 1E = EOL
Terminals A2 (NO),
=
B2 (COM),
=
C2 (NC)
,
= Supervisory relay
2D and 2E = EOL
Terminals A3 (NO),
=
B3 (COM),
=
C3 (NC)
,
= Trouble relay
3D and 3E = EOL.
NOTE
EOL terminals are provided to allow convenient
installation of EOL resistors. Installing an EOL
resistor at terminals 1D and 1E or 2D and 2E
places it across the normally open and common
contacts of the alarm and supervisory relays. Note
that the Trouble relay is energized during normal
operation, therefore the EOL resistor goes across
the normally closed contacts at 3D and 3E. To
insert the resistor lead into the terminal, depress
the orange lever.
Terminals 4 to 6 —
DC Power.
(EQ2101LCU only)
Two separate 24 vdc power
supplies with common ground
are required. Connect terminals
A4 and B4 to one supply and
A5 and B5 to the other. A
trouble condition is indicated if
either supply is missing.
Connect terminals A6 and B6
(AUX OUT) to the auxiliary
terminals on the LIOU. This is
typically used for powering
solenoids, horns, strobes, etc.
Row A terminals = (–)
Row B terminals = (+)
VII-4
COM1
NO
NO
NC
NC
FAULT
K4
K3
K2
K1
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
18
17
16
15
14
3
2
1
3E
3D
2E
2D
1E
1D
TROUBLE
SUPER
ALARM
COM2
COM
COM
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
R
+
COM
T
+
COM
A
CHASSIS
–
–
–
–
P1
P2
RS-485
GND FLT
MAIN 24V
AUX 24V
DC1
DC2
A
B
SHIELD
RESET
INPUT 1
INPUT 2
INPUT 3
RXD
TXD
RXD
TXD
B
EARTH
+
+
+
+
LON/SLC
GATEWAY RELAYS
EOL
LOGIC CONTROLLER RELAY CONTACTS
USED WITH EQ2101 RACK ONLY, SEE TEXT
24 VDC TO STANDARD LCU RACK
CHASSIS (EARTH) GND
RS-485 TO LIOU
UNSUPERVISED INPUTS TO LOGIC CONTROLLER
RESET GATEWAY RELAYS
GATEWAY RELAY CONTACTS
TO OIS
TO
COMMUNICATION
NETWORK
ROW D
ROW C
ROW B
ROW A
D1859
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P7
Figure VII–6—Wiring Terminals on the LCU
Содержание Eagle Quantum 95-8470-05
Страница 116: ...Figure A1 A 10...
Страница 122: ...Figure B1 B 6...
Страница 125: ...APPENDIX D D 1 95 8470...
Страница 128: ...LON is a registered trademark of Echelon Corporation Modbus is a registered trademark of Modicon Inc...