69333/334 HPLC PUMPS | USER’S GUIDE
FRONT PANEL CONTROL
Electrical Connections
For instructions to make input/output contact connections, refer to Contact Connections on page 22.
Input Signals
Four pairs of terminals of the right-hand socket are dedicated to specific software-related input
functions:
Contact Function
Pin
Location
START/END
Used to start (Open -> Close) and stop
(Close -> Open) a program.
1
PAUSE/RESUME
Used to pause (Open -> Close) and
resume (Open -> Close) a program
currently running. The pause may be
configured with or without flow.
3
INPUT (WAIT)
Used to signal to the method program
currently running that the external
equipment (e.g., fraction collector,
sampling injector) is ready.
5
EMERGENCY
Used to signal to the pump software to
start a Safety Program File (24).
7
Output Signals
Two outputs on the right-hand socket are dedicated to outputting signals:
Contact Function
Pin
Location
Digital Output Converted to Analog (0–1V) Used to connect to analog recorders. 9
Analog Output (143–1000mV) Used for pressure. 10
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