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Installation
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7
2.4.3 Power Cable
AC versions of the 680HE are shipped with the AC power cable already installed.
The AC power cable is grounded to the threaded grounding hole on the back panel of the enclosure between the cord
grip and the power supply connections rather than using Pin 3. This is a UL requirement.
2.4.4 Load Cell Cable
To attach the cable from a load cell or junction box, route cable to the J1 connector (
). Connector for the
cable is included in the parts kit. See
for wiring the load cell cable from the load cell or junction box to connector.
A ferrite from the parts kit must be applied to the load cell cable within 1'' (25 mm) of the load cell. The cable must be
sent through the ferrite twice.
For a 4-wire installation leave pins 3 and 4 empty on the connector.
For a 6-wire installation set the SENSE parameter to 6-WIRE in the CONFIG menu (
).
2.4.5 RS-232 Serial Communications
The J3 connector (
) is intended to provide a connection point for the RS-232 serial communications. Two
RS-232 ports are available. See
for the pin assignments for the J3 connector.
RS-232 Port 1 = RS2321 and RS-232 Port 2 = RS2322 in the 680HE menu structure.
Pin
Description
Wire Color
Cable Part No.
1
120 VAC (Line In)
Brown
180842
2
AC Neutral
Blue
3
Ground
N/C
–
4
DC Out (-V)
Black
199514
5
DC Out (+V)
Red
Table 2-4. AC Power Supply Pin Assignments
Connector
Pin
Function
J1
1
+SIG
2
–SIG
3
+SENSE
4
–SENSE
5
+EXC
6
–EXC
Table 2-5. J1 Pin Assignments (Load Cell)
Connector
Pin
RS-232 Port 1
RS-232 Port 2
J3
1
GND
–
2
RX1
–
3
TX1
–
4
–
GND
5
–
RX2
6
–
TX2
Table 2-6. J3 Pin Assignments (RS-232)
Note
Note
Note
Summary of Contents for Synergy 680HE
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