KERN FTB Service Manual page 72

7-pin connector
+Ex +Se +Si -Si -Se -Ex
8.6.4 Connection of a second weighing platform to the analog option
The analog option, which allows the connection of a second weighing platform, is housed in the OptionPac. The connection
of a second weighing platform to the analog option requires a weighing platform already connected to the terminal.
The analog second weighing platform is connected directly to the OptionPac via a 9-pin Sub-D connector.
Pin Assignment
1 + Excitation (+8,2 VDC)
2 + Sense
3 Shield
4 – Sense
5 – Excitation
6 not assigned
7 + Signal
8 – Signal
9 not assigned
Important: The analog second weighing platform is configured as a reference scale in the factory setting. "Bulk" (bulk scale)
or "Auxiliary" (auxiliary scale) can furthermore be selected in the interface menu "COMMUNICATION –> Option –> Mode". The
weighing platform can be deactivated with the "Bypass" setting.
Then calibrate the weighing platform ("SCALE 2").
FTx/ITx-SH-e-0720
Secure the individual strands of the connecting cable on the connector. The pin
assignment is shown in the diagram opposite.
The pins are marked as follows:
Si = Signal, Ex = Excitation, Se = Sense.
Attach the connector to the terminal. Caution: When inserting the connector,
ensure that it is centered exactly in the connector socket. If the connector is
skew, then not all pins are in contact!
Reassemble the rear cover plate of the terminal. Note that the connecting cable of
the weighing platform is not crimped!
Tighten the nut of the heavy gauge cable gland. Ensure that the shield of the cable
is held firmly between the two washers.
Connection of analog weighing platforms without suitable connector
Connect analog weighing platforms that do not have a suitable connector to the
analog option in accordance with the adjacent connection assignment. Also
observe the connection assignment of the weighing platform.
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