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 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.
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
INPUT 1
INPUT 2
GND
GND
EX+
EX+
IN
IN
D1
DIGITAL IN
GND
D2 D3
10 of
LD5TMRMAN-1.1-0