SECTION A, PAGE 5
A8. TRANSFORMER OVERTEMPERATURE SWITCH: If your
welder transformer has a thermostat that opens on temperature rise, remove the
factory jumper and connect it to terminals #3 and #4. Before connecting, be sure that
the contact is CLOSED. Some of these switches are used for turning on cooling
water solenoid valves and close on temperature rise.
When this input is opened, the display will show:
No operation of the control is possible until this switch input has been closed.
A9. LOW WATER FLOW SWITCH: If you have a WATER FLOW switch
that opens a contact when water flow is low, connect this switch to terminals #13 and
#14 (RT1 – RTC). Then assign RT1 this input to operate as a WATER FLOW
SWITCH by pressing:
and pressing 5 as directed. When the
weld is started, if this input is open, the
display will flash:
No operation of the control is possible until this switch input has been closed.
A10. WATER TO SCR CONTACTOR: If your control has a WATER-
COOLED SCR CONTACTOR, connect water hoses to the ¼” NPT fittings. Direction
(in/out) is not important as long as this control does not have a built-in WATER
FLOW safety switch. If it does have a WATER FLOW safety switch, observe the IN
and OUT labels on the water ports.
WATERFLOW sw.is open
open open
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