ALLIANCE SCL020WT - Control Does Not Allow External Device to Download a Machine Cycle While Running

Control Does Not Allow External Device to Download a Machine Cycle While
Running
Possible comm port
chosen on the
external device?
Is the AP1 Output
Board properly
grounded?
No
Search the ports on
the external device
to find correct port
for IR.
Yes
Attempt to
communicate with a
different control to
verify the external
device is working. If
the external device
works on another
control, AP2 Control
Logic Board may need
to be replaced.
Yes
(A)
Ensure ground is
properly connected to
H1-4 on AP1.
No
Troubleshooting
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120 Part No. F8677701EN