Tweco HMC-410 Robotic Interface Kit - Manual (Page 18)

Pin Name Description
Y VOLT - Analog return
Z VOLT + This line is a 0 to 10 VDC analog signal, which corresponds to a 0 to 44.0
volts arc voltage (or pulse frequency reference, sometimes called trim,
setting).
When this mode is selected, the HMC-410 displays different information depending on if the equipment is
in standby or welding. When the HMC-410 is in standby, the top 2 displays show the arc time and the bot-
tom display shows the inching wire feed speed (both forward and reverse). The wire feed speed is set by
the robot control when EEE is selected for wire feed speed. When the HMC-410 gets a gas input, it as-
sumes a weld is getting ready to be initiated and goes into a welding mode. The PREFLOW light is lit. As the
sequence progresses, the RUNIN, WELD, BURNBACK, and POSTFLOW lights are lit in order. During this
welding mode, a decimal representation of the inputs is shown on the top display. The middle display
shows the arc voltage. The bottom display shows the arc current, or wire feed speed, selected with the
mode select knob.
When the TEST button on the HMC-410 is pressed once, the dry run test mode is selected (designated by a
constant TEST LED being lit in the bottom left corner of the HMC-410). In this mode, the HMC-410 will ac-
cept commands from the robot, and feedback the arc established signal as if a live arc were happening. No
wire, gas, or power source output is actually present. The commanded signals are shown on the front of the
HMC-410. This is sometimes useful for reviewing desired welding settings.
When the TEST button is pressed once again, the weave inhibit mode is selected (designated by a once /
second flashing TEST LED in the bottom left corner of the HMC-410). In this mode, the HMC-410 will weld
as normal, only the weave inhibit feedback to the robot is turned on. The robot should then utilize that signal
to disable its weaving function.
2 (and 5): This mode selects the ABB master weld control. When used with the 24 Pin Amphenol Board
(870213), the following signals are supported:
Pin Name Description
A Water / Gas
Error
A loss of adequate water (cooling) or shielding gas is designated when
this line is shorted to pin J.
B Arc
Established
The welder supplies +24 VDC with respect to pin J when an arc is estab-
lished.
C Inch Reverse When the robot control puts +24 VDC on this line with respect to pin J,
the HMC-410 will run the wire in reverse at the speed set in the INCH
SPEED window on the HMC-410. If EEE is selected for INCH SPEED,
the speed will be set by the voltage on pins W and X.
D +24 VDC Robot +24 VDC
E Weld On/Off When the robot control puts +24 VDC on this line with respect to pin J,
the HMC-410 will initiate a weld and continue it for as long as the voltage
is present. Once the voltage is removed, the weld is stopped. The pa-
rameters for the weld are programmed in the PREFLOW, RUNIN,
WELD (including sub-segments), CRATERFILL, BURNBACK, and
POSTFLOW screens. Times for each segment are programmed on the
HMC-410. Voltage and Wire Feed Speed can be programmed locally
on the HMC-410, or remotely from the robot control. To use the re-
motely controlled settings, set the appropriate parameter setting to
EEE.
430429-457
2-12 June 13, 2002