Det-Tronics EQP Fire and Gas Detection/Releasing System - Manual (Page 48)

3-29 14.1 95-8533
STARTUP
Turn on the power supply and allow the voltage to
stabilize. Verify the output voltage and adjust as
needed. Refer to "EQP2XX0PS(–X) Power Supplies"
in the Specifications section of this manual.
IMPORTANT!
The output voltage is adjustable. An even
current distribution must be ensured by
precisely setting all power supply units that are
operated in parallel to the same output voltage
±10 mV.
IMPORTANT!
To ensure symmetrical current distribution it is
recommended that all cable connections from all
power supply units/diode redundancy modules
to the power distribution bus are the same
length and have the same cross section.
ENHANCED DISCRETE INPUT/
OUTPUT (EDIO) MODULE
INSTALLATION
All electrical connections are made to the field wiring
connectors furnished with the module. Refer to Figure
3-25 for identification of module wiring terminals.
Connector P1, Terminals 1 to 6
24 vdc Power Input
Connect the module power supply to terminals 1 and
2. If additional terminals are required for powering
other devices, these devices should be connected to
terminals 4 and 5. Shields are to be connected to
terminals 3 and 6 — chassis (earth) ground terminals.
Total output current should be limited to 10 amperes.
Connector P2, Terminals 1 to 6
LON/SLC Signaling Circuit Terminals
Be sure to observe polarity when wiring the LON/SLC.
1 — "A" side of signaling circuit for COM 1
2 — "B" side of signaling circuit for COM 1
4 — "A" side of signaling circuit for COM 2
5 — "B" side of signaling circuit for COM 2
3, 6 — shield connection
Connector P3, Terminals 1 to 12
Terminals A,B & C
Channels 1 to 4 Input / Output Terminals
Refer to individual wiring configurations for terminal
descriptions. Only channel 1 is shown in each
diagram. The information is typical for channels 2-8.
CHANNEL 8
CHANNEL 7
CHANNEL 6
CLASS A
CHANNEL 7
CLASS A
CHANNEL 5
CLASS A
CHANNEL 3
CLASS A
CHANNEL 1
CHANNEL 5
CHANNEL 4
CHANNEL 3
CHANNEL 2
CHANNEL 1
COM
6
5
4
3
2
1
COM 2 SHLD
COM 2 B
COM 2 A
COM 1 SHLD
COM 1 B
COM 1 A SHLD
B
A
SHLD
B
A
LON FROM
PREVIOUS DEVICE
LON TO
NEXT DEVICE
POWER
6
5
4
3
2
1
SHLD
–
+
SHLD
–
+ SHLD *
–
+
SHLD *
–
+
24 VDC
INPUT VOLTAGE
24 VDC
INPUT VOLTAGE
EQ3730EDIO
TO
EARTH
GROUND
A2287
+ SUPPLY A
IN–/OUT+ B
COMMON C
+ SUPPLY A
IN–/OUT+ B
COMMON C
+ SUPPLY A
IN–/OUT+ B
COMMON C
+ SUPPLY A
IN–/OUT+ B
COMMON C
+ SUPPLY A
IN–/OUT+ B
COMMON C
+ SUPPLY A
IN–/OUT+ B
COMMON C
+ SUPPLY A
IN–/OUT+ B
COMMON C
+ SUPPLY A
IN–/OUT+ B
COMMON C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
*
SHIELDS ON POWER WIRES ARE OPTIONAL
UNLESS REQUIRED BY LOCAL CODES.
Figure 3-25—EDIO Module Wiring Terminals