Bio-Rad BioFrac™ Fraction Collector - Manual (Page 96)

B | Rear Panel Connector Information
88 | BioFrac Fraction Collector
8-Pin Mini-DIN Connector
Table 24. 8-Pin mini DIN connector input signals
Pin #
Input Signals
Type
Active System Cable 7
Wire Color
Description
2 WASTE/COLLECT Level Low Orange Controls diverter valve.
Connection of pin #2 to
pin #8 (signal ground)
causes the diverter valve
to change to collect.
Controlled by a relay on
a remote device. Active
in LP/Econo mode.
All input and output pins, except the relay terminals, are TTL compatible. All input pins are with 10
k
 pull-up. The relay pins are used to control low-voltage DC contact-closure type devices, such
as 12 V, 10 mA.
Caution: Do not apply 110 VAC or 220 VAC directly to the relay terminal pins.
Table 25. 8-Pin mini DIN connector output signals
Pin # Output Signals Type Active Wire Color Description
3 EVENT MARK Pulse Low Yellow Sends a negative pulse
(200 ms) for each
fraction advance. If the
delay function is being
used, the drophead
advance will be
separated from the
event mark by the delay
time, volume, or drops.
Active in Local mode.
4 PAPER FEED/
STOP Level High Red Chart recorder control,
paper feed/stop. Active
in Local mode.