Pulse Mode - YASKAWA MOTOMAN DX100 Instruction Manual

Auto-Axcess DI/E Digital
4.2
4 Theory of Operation

4.2 Pulse Mode

Auto-Axcess
The functions as a Master on the DeviceNet network. The
robot is a slave and other devices should not be connected to this
network, unless they are for monitoring purposes. The digital interface
utilizes a total of 9 bytes and would have been addressed by Motoman for
your exact cell configuration. Users should make back up copies of their
I/O settings including the concurrent I/O (CIO.LST). The pendant HMI
application also allows the settings made on the HMI to be saved to flash
memory. This backup is only saving the selections made from the pendant
and is not saving the welders memory. It is recommended that Users
invest in the File Manager software from Miller to support maintenance
functions (this is true whether Digital or Analog versions are in use).
Auto-Axcess
With the , Motoman is able to log error messages from the
welder. These can be viewed on the message display when the alarm
occurs. The error messages are logged in the robot's alarm history in the
User Alarm section. The alarm is saved with date, time, job name, and
step number when the alarm occurred.
Pulse Mode
Pulse Mode behaves identically to non-pulsed (MIG) mode except that
spray current, (low/no-spatter) can be achieved for virtually the entire
range of wire feed speeds. Spray transfer is accomplished by elevating
the current above that required for globular transfer, holding the current
while a droplet(s) is formed and detached from the electrode, and then
dropping the current to a low background level. The amount of time at this
background level is often based (inversely proportional) on the wire feed
speed - higher wire feed speeds require more droplets per second and so
shorter background times (higher frequencies) are often used. Pulse
mode is recommended for welding conditions (wire feed speeds) wherein
globular transfer would be achieved in non-pulsed mode. Pulse mode is
typically used for all wire feeds speeds for aluminium GMA welding.
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