![AMALGAMATED INSTRUMENT LD5-RS Operation And Instruction Manual Download Page 12](http://html1.mh-extra.com/html/amalgamated-instrument/ld5-rs/ld5-rs_operation-and-instruction-manual_2915959012.webp)
3
Electrical Installation
The display is designed for continuous operation and therefore no mains/power switch is fitted to the
unit. It is recommended that an external switch and fuse be provided to allow the unit to be removed
for servicing. To install cables remove six front panel retaining screws. Remove front panel taking care
not to damage the ribbon cable (ribbon cable joins the front display circuit board to the main circuit
board). Connect power and input cables to the plug in terminal blocks located within the enclosure. The
terminals are clearly labeled and unplug for ease of installation, please take care to connect them correctly.
The terminal blocks allow for wires of up to 2.5mm
2
to be fitted (relays and power) and 1.5mm
2
for
remote inputs. When power is applied the instrument will cycle through a display sequence, indicating
the software version and other status information, this indicates that the instrument is functioning.
See the “LD5 Series 8 Channel Scanning Monitor Output Addendum” booklet for wiring details of any
optional outputs not covered in this instruction manual.
Input board layout
Isolated supply
input connector
Signal input
connectors
Plug in
circuit board
Relay
connectors
Display
connector
Non isolated
24 VDC supply
input connector
Ethernet
connector
(optional)
Remote
inputs
connector
P9
P7 ETHERNET
DISPLA
Y
P10
P11
PO
WER
IN
110V
A
A
N
N
+
-
E
E
E
240V
DC
RELAY 1
REL 2
REL 3
REL 4
NO
NO
NO
NO
NC
COM
COM
COM
COM
P6
IN4
IN3
IN2
IN1
GND
P4
+24
DC IN
GND
SSI
PWR OUT
DB
TX
GND
GND
24V
DA
RX
A
B
RS232
RS485
5V
TM
CAN BUS
GND
CH CL
12 of
LD5RSMAN-2.0-0