Gullco GK-200-RL - Manual (Page 15)

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The Automatic Return To Home parameter setting is ignored if the Weld Direction parameter is set
to both Forward & Reverse, or if optional travel limit switches are not detected on power-up.
If the Run/Stop switch is placed in the Stop position, or the Forward/Neutral/Reverse switch is
placed in the Neutral position at any time during an automatic cycle, the carriage travel will stop
immediately, and upon completion of the crater fill delay the Arc Signal will reset (if applicable).
Special consideration for the Auxiliary “Hold” (Stop) Signal in Automatic Mode:
The Auxiliary “Hold” (Stop) Port - “CN12” - of the control allows an external device to place the
control in the “Hold” (stop) mode. While-ever the device activates the “Hold” (stop) signal (closes
the circuit between pins 1 & 2 of CN12) the carriage travel is immediately inhibited (both manual
and automatic modes) and upon completion of the Crater Fill Delay the Arc Signal will reset, if
applicable (automatic mode).
If the external device activates the auxiliary “Hold” (stop) signal for more than one second during an
automatic cycle, the “Hold” (stop) mode is activated as described above. However, when the signal
is deactivated (released), and if neither the Run/Stop switch had been placed in the Stop position
nor the Forward/Neutral/Reverse switch placed in the Neutral position, the control will commence a
new automatic cycle. It is important to realise that under these circumstances, even though
the auxiliary “Hold” (stop) signal may have been applied while the automatic cycle was
performing an Automatic Return To Home routine, when the signal is deactivated (released),
the cycle will start anew (arc signal activation, followed by carriage travel in the direction set
by the Forward/Neutral/Reverse switch).
If the external device activates the auxiliary “Hold” (stop) signal for less than one second during an
automatic cycle, the automatic cycle performs a controlled shut down and resets (as though the
Run/Stop switch has been placed in the Stop position).