ROBOTIC INTERFACE
2.3 TOUCH SENSE SIGNAL
This is an active low input to the robot controller which indicates that the welding electrode has touched the work piece. To start touch sensing the touch sensing command must be held low by the robot controller. Then the Power Wave mon- itors the current through the electrode to deter- mine if it is touching the work piece. If the touch sense command is held low and the electrode is touching the work piece then the touch sense signal will be held low to report a “touch” to the robot controller.
2.4 ARC DETECT
This is an active low input to the robot controller which indicates that a welding arc has been detected. The Power Wave monitors the arc volt- age and current to determine if an arc is estab- lished. If an arc is not established then the arc detect signal is held high to report an error to the robot controller.
2.5 GAS FAULT
This is an active low input to the robot controller which indicates that the shielding gas is missing. The Power Wave has external connections avail- able for a normally open gas pressure or flow switch. If a switch is installed and the gas fault function is enabled then gas loss errors will be reported to the robot controller.
2.6WIRE FAULT
This is an active low input to the robot controller which indicates a wire feeding problem or the lack of welding wire. This signal is not connect- ed in the Power Wave.
2.7 WATER FAULT
This is an active low input to the robot controller which indicates a water cooling problem. The Power Wave monitors the water cooling pressure to decide if a water fault has occurred. If the water cooling pressure drops below
2.8 POWER FAULT
This is an active low input to the robot controller which indicates a power fault in the Power Wave. If for some reason the 15V power supply in the Power Wave is below 15V then the power fault signal is held low to report an error to the robot controller.
This is an analog input to the robot controller with a range of 0 to 10V. The internal arc voltage sig- nal in the Power Wave is multiplied by 2 and iso- lated to produce the voltage feedback signal. A voltage feedback signal of 7.620V is equal to an arc voltage of 80.0V.
2.10 CURRENT FEEDBACK
This is an analog input to the robot controller with a range of 0 to 10V. The internal arc current sig- nal in the Power Wave is multiplied by 4 and iso- lated to produce the current feedback signal. A current feedback signal of 8.317V is equal to an arc current of 750A.
2.11 WELD START
This is an active low output from the robot con- troller which commands the Power Wave to start an arc.
2.12 GAS START
This is an active low output from the robot con- troller which commands the Power Wave to open the shielding gas solenoid.
2.13 TOUCH SENSE COMMAND
This is an active low output from the robot con- troller which commands the Power Wave to turn on touch sensing. When touch sensing is enabled the Power Wave regulates a pulse volt- age wave form while monitoring the current through the electrode. If current flows through the electrode then the touch sense signal is held low to report a “touch” to the robot controller.
2.14 WIRE+
This is an active low output from the robot con- troller which commands the Power Wave to cold inch wire at 80 IPM.
2.15 WIRE-
This is an active low output from the robot con- troller which commands the Power Wave to cold inch wire at
2.16 WIRE STICK ALARM
This is an active low output from the robot con- troller used to indicate a wire stick. This signal is not connected in the Power Wave.
2.9 VOLTAGE FEEDBACK
POWER WAVE 450
APR97
