Sonics GXL - Manual (Page 44)

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I N S T R U C T I O N M A N U A L • M O D E L G X L P O W E R S U P P LY
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TWO ISOLATED LOOP SUPPLIES
Two isolated non-regulated 24 VDC supplies (50 ma max) are available on
the digital I/O connector and may be used for the I/O loop power. These are
low level supplies and cannot be used to power relay inputs or outputs! They
should be used for LED indicators or transistor type input cards if the PLC
does not provide low level DC power for this purpose.
The first supply is available on connector J3 pin 1 (+24 VDC isolated supply
#1; cable wire – black) and J3 pin 2 (+24 VDC isolated supply return #1; cable
wire – white). The second supply is on J3 pin 3 (+24 VDC isolated supply #2;
cable wire – red) and J3 pin 4 (+24 VDC isolated supply return #2; cable wire
– green).
See schematic drawing on page 49 for more detail.
I/O TIMING DIAGRAM – AUTOMATION CONTROLS
The cycle begins with the impulse contact to start a cycle (note that the
impulse signal is not part of the configurable inputs and outputs for
compatibility with existing product lines). If the system is using external job
selection, the job address lines must be stable 50 ms prior to the impulse
contact and remain stable until the cycle is underway as indicated by Ready
going low (false). The Good Part/Bad Part lines are also cleared as the cycle
begins.
When the weld cycle is complete, the Good or Bad part signal is set prior to
the system returning to the ready condition. The impulse (and Palm Button
signals) must all be released to complete a cycle and return the Ready
Signal.
See schematic drawing on page 50 for more detail.
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