Arc Machines 227 - Manual (Page 28)

MODEL 227
OPERATION MANUAL
Doc # 740063 Rev E
SECTION IV - SYSTEM FUNCTIONS
4.1 FUNCTIONAL DESCRIPTION, GENERAL
4. TRAVEL FUNCTION - The system is equipped with a motor servo
controller that provides the power and regulation for rotating the arc around
the weld seam. The system controls the movement in revolutions per
minute (RPM) or inches per minute (IPM) depending on weld head type.
NOTE
The motor servo can only work properly if the weld head being used is
equipped with a motor assembly designed for operation on the M-227.
5. WIRE FEED FUNCTION - The system is equipped with a motor servo
controller that provides the power and regulation for feeding Wire into the
weld puddle. The system controls the feed in Inches per Minute (IPM).
6. AVC FUNCTION - The standard M-227 comes with an Arc Voltage
Control (AVC) Motor Servo. A version of the M-227 is also available
without AVC. The AVC in conjunction with a weld head with an AVC
motor is used to maintain the desired Arc Gap between the Electrode and
the weld puddle.
7. TORCH OSCILLATION - The standard M-227 comes with an OSC Motor
Servo. A version of the M-227 is also available without OSC. The OSC
in conjunction with a weld head with an OSC motor is used to perform both
cross-seam steering during a weld and to provide welding weave across the
weld during rotation.
8. PULSATION - The system can rapidly change or PULSE back and forth
between two (2) different values of CURRENT, TRAVEL, WIRE FEED
and AVC. The normal or HIGH value is designated the PRIMARY value.
The other or LOW value is designated the BACKGROUND value. This
pulsation is done as a function of time by using the PRIMARY and
BACKGROUND PULSE TIMES to set an exact amount of time for each
PRIMARY and BACKGROUND function to occur or the pulsation can be
synchronized to the movement of the Torch Oscillator function.
9. OVERRIDES - The weld schedule programmer can set the M-227 to allow
the operator to change the value of some weld schedule functions. The
programmer can also set limits to the amount of changes the operator can
make to each function.
4.2