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.
In
2.
Initiate
3.
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
6
7
8
9
1
2
3
4
5