Input / Output Connection Instructions
Voltage Initiate Circuit
The 2000XL may be initiated with a 5 to 24 VDC signal across pins
1 and 2. The signal can be momentary (no less than 0.001 seconds)
or maintained. A new cycle will begin once power is removed and
then applied again.
Mechanical Contact Initiate
The 2000XL can be initiated via the closure of mechanical contacts
such as a relay or switch using pins 5 and 7. Closure of the contacts
can be momentary (no less than 0.001 seconds) or maintained. A
new cycle will begin once the contacts are opened and then closed
again.
End-of-Cycle Feedback Circuit
Upon completion of a dispense cycle, an open collector circuit closes
and remains closed until the next dispense cycle. This circuit can be
utilized to signal back to a host computer, start another device in
sequence or other operations that need to be tied into the completion
of the dispense cycle.
Upon closure, power from an external 5 to 24 VDC source is allowed
to pass through the circuit to operate a load. Power consumption of
the load must not exceed 250mA.
Note: A 9-pin male connector
assembly is available from EFD.
Order part no. 7154.
I/O Connection
The 9 pin D connector and
internal circuitry provide
external initiate and end-
of-cycle feedback signal.
The pin connections are
shown below.
Pin Function
1. Initiate +
2. Initiate
3. Output +
4. Output
5. Contact Closure
6. Chassis Ground
7. Contact Closure
8. Not Used
9. Not Used
]
]
5-24 VDC
5-24 VDC
250mA Max
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