13 / Connecting More Than One 7040 Controller
Connecting more than one 7040 Controller
2. Series circuit for End-of-Cycle Feedback
feature. A relay is illustrated as one
example for utilizing the feedback circuit.
1. Parallel circuit diagram for Voltage Initiate.
1. Voltage Initiate Circuit
To start the dispense cycle for multi-
ple 7040 controllers at the same time,
connect the voltage initiate circuit in
parallel as illustrated.
Note:
The amperage consumption for the
voltage initiate circuit will increase
with each controller that is connected.
The initiate power supply should be
sized accordingly.
2. End-of-Cycle Feedback Circuit
This circuit will ensure that the end-
of-cycle signal will come from the last
7040 to complete a dispense cycle.
Connect in series as illustrated.
Note:
There will be a maximum voltage
drop of 2.0 VDC through the feed-
back circuit with each 7040 that is
added to the series. The input power
should be adjusted for this drop to
ensure that the required voltage is
available to operate the load.
Maximum input voltage to terminals
3 and 4 must not exceed 30.0 VDC.
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Source
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