Bio-Rad BioFrac™ Fraction Collector - Manual (Page 31)

Connecting Instruments and Devices to the BioFrac Fraction Collector
User Guide | 23
3. Connect the BioFrac accessory cable green/black wire (pin #9) to the start pin
on the remote instrument. Refer to your particular pump’s documentation for
further information.
4. Connect the orange/black wire (pin #10) to the remote instrument’s signal
ground. When Run is pressed on the BioFrac instrument, the remote start relay
pins (pins #9 and #10) are connected and the start signal is relayed to the
remote device.
To remotely start or stop the fraction collector
1. Set up the fraction collection parameters as described in
Chapter 5, Stand-Alone Operation , on page 57 with the fraction collector in
Local mode. In Local mode, the fraction collector controls all aspects of fraction
collection.
2. Connect a BioFrac accessory cable (15-pin to bare wires, see Appendix B, Rear
Panel Connector Information , on page 85) to the I/O port on the back of the
fraction collector.
3. Connect pin #5 (orange wire) to the signal ground, pin #15 (blue/white wire).
Making this connection allows the BioFrac to listen for a start/stop signal.
4. Connect pin #6 (blue wire) to one terminal of the start/stop relay on the
controlling device and connect pin #15 (blue/white wire) to the other terminal of
the start/stop relay.
Refer to the documentation for your controller before completing the setup.
Pressing start on the controlling device starts the BioFrac by connecting pin #6 to
ground. Fraction collection is stopped when the last tube is reached, Stop is
pressed on the BioFrac, or the connection between pin #6 and ground is broken by
pressing Stop on the controlling device.
Note: When doing a remote start, we recommend that you test the collection
parameters by pressing Run and then Stop on the BioFrac instrument before
running an experiment. The BioFrac does a series of error checks at the start of
a run and will not start a run if it finds an error in the setup.