Graco IPH-25 Series Installation & Operation Manual page 24

Setup
Optional External Machine Control
GF
GG
GH
GJ
F . 14: DB9 Male Connector on Electrical Enclosure
IG
All electrical work must be done by a technician
knowledgeable in electronics.
CAUTION
The external machine must use a semi-conductor
based output, such as an NPN transistor.
An optional external machine control interface can be
installed if desired. The external machine will be able to
select specific shots and to initiate shots.
CAUTION
The external machine will not supply any voltage
through any of the DB9 lines. It will only ground the
received signals from Pins #7 and #8 to Pin #1 as
needed.
24
GA
Key:
GA Pin #1: External Machine Return Ground
GB
GB Pin #2: Not used
GC Pin #3: Not used
GC
GD Pin #4: Not Used
GE Pin #5: Ground for Cable Shields
GF Pin #6: Not used
GD
GG Pin #7: Shot Number or Sequence n
GH Pin #8: Dispense Request
GE
GJ Pin #9: Ready Status
Ready Status Line
The Ready Status line tells the external machine when
the shot controller is ready to receive signals. This line
has two states: "High" and "Low." When it is "High" there
is 24V and when it is "Low" there is less than 5V.
The machine will send a 24V, or "High," signal specifying
it is ready to receive inputs when it is at the idle run
screen.
The machine will send a less than 5V, or "Low," signal
specifying it is not ready to receive signals when it is dis-
pensing, in one of the setup screens, or when an error
code has been generated and has not yet been
acknowledged on the shot controller.
th
See F . 15 on page 26.
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Shot Selection