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Cable Connections
13
Figure 2-4. Wiring Diagram
20mA_Out
RXD1
TXD1
GND
RXD2
TXD2
GND
GND
Sig+
SIG-
SEN+
SEN-
EXC+
EXC-
Load Cell Connection
RS-232
Connection
20mA
Connection
L
GND
N
Power Supply
CPU Board PN 131318
A/D Board PN 131319
Power Supply
PN 131316
Analog Output
PN 131341
Relay Board
PN 131342
J2
J1
J2
J13
J17
J5
J6
J15
J16
J14
J7 to display board
J2
J10
R1_NC
R1_C
R1_NO
R2_C
R2_NO
R3_C
R3_NO
R4_C
R4_NO
IN-
IN1+
IN-
IN2+
+5V_OUT
GND
I_OUT
RETURN
V_OUT
RETURN
Analog Output Terminal
I/O Terminal
J3 J4
Sense Jumpers
Ethernet/USB Board
PN 164600
Heartbeat
LED
LED1
Activity
USB
5-Pin Plug
J2
RJ45
Ethernet
Jack
J1
J4
RL4_ON
RL1_ON
RL2_ON RL3_ON
IN1
IN2
+5V
OUT
RL4
RL1
RL2
RL3
J2
Mode Select
Jumpers
JMP2
JMP3 JMP1
A2 A1 A0
J3
Battery Charger
PN 131317
Battery
PN 131323
Standard
Option
Key
J9
Battery and Battery Charger are optional.
Analog, Ethernet/USB and Relay boards require an option card bracket (PN131340) for mounting.
Relay Board Information:
To use outputs 1-4 and inputs 1-2, short jumper A1 (JP2)
To use outputs 5-8 and inputs 3-4, short jumpers A0 (JP1) and A1 (JP2)
Output relay rating of relay 2 AMPS at 30 VDC dry contact relay closure
Digital Input is opto-isolated, activated with 5-24VDC.
Note
Summary of Contents for Legend 480-2A
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