Liquid Controls LectroCount LCR 600 E3708 Series, Installation-Parts

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daTa CoMMunICaTIons
rs-232 and rs-485 Communications
The LCR 600 is capable of interfacing with RS-232 and R-S485 communication protocols. Data connections for these
protocols is made at the J2 and J3 terminal blocks. A jumper, located on the left side of the CPU board, can also affect
communication protocol; however, it must remain in the B position for all LCR 600 applications. See note and diagram
below.
PRINTER SERIAL 485 TERMINAL
POWER
COUNTER
MH1
CTS RXD TXD RTS GND GND 485+A 485-B CTS RXD TXD RTS +VP
EARTH
AUX OUTPUTS
PULSE INPUTS
AUX I/O
GND GND
GND
IN 1
OUT1 OUT2 OUT3
TEMPERATURE PROBE
ASSY
84040 REV.
RTD+S RTD-D1 RTE-S RTD+D
OUT4 OUT5
IN 2 IN 3 IN 4 +5V OUT +VP
+VP
PGND OUT6 +VP
SOL
+VP PGNDOUT7
+VF +VF IN5 OUT8 GND
GND +12-24V ACC
MH4
C1
J20
J6
J3 J2 J1
J7
J12
J15
P1
TP1
J5
J14
J18
J19
J10
J17
J11
J7
C2
MH5
MH3
MH2
A
B
11 10 1213
52 53 54 55 56
A B
A
B
J2 (RS-485)
J3 (RS-232)
A Position
B Position
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The LCR 600 is shipped with the jumper in the B position. Keep it there.
There are no cases in which it must be moved to the A position.
Keep the B Position
Power Installation overview
When you have made all of the data connections and finished installing the components, connect the power to the
LCR 600 and the Epson printer. Before making the power connections, go through the vehicle system checklist below,
and ensure that the electrical system of the truck meets the minimum requirements for powering the LCR 600 and the
Epson printer.
vehicle system Checklist
□ Clean any corrosion from the battery terminals and battery cable to guarantee a solid, tight connection.
□ Charge the battery in accordance with the manufacturer’s specifications.
□ Ensure the alternator is large enough to meet the total demands of the truck, including the LCR 600. The
LCR 600 requires a minimum of 5 A for proper operation. Run the truck at low idle with all accessories on
(including hose reel), and check the voltage with a multi-meter. The voltage should not drop below 11 V.
□ Inspect the electrical equipment on the vehicle, and ensure it is properly installed and operating correctly.
□ Determine whether the vehicle is grounded positively or negatively. Consult Liquid Controls if the vehicle
has a positive ground.
□ Make sure that any radio antennas are installed in accordance with the manufacturer’s specification to
prevent RF interference.
PoWer InsTallaTIon
The J2 terminal block is
permanently attached to the
CPU board.
Do Not Try To Remove J2