Arc Machines 227 - Manual (Page 60)

MODEL 227
OPERATION MANUAL
Doc # 740063 Rev E
SECTION V - OPERATION
5.10 WIRE FEED CALIBRATION
4. LEVEL 1 TIME needs to be set for 60 seconds (1 minute). PULSE MODE
should be OFF so only one Wire Feed Speed is checked (primary). The Wire
Feed Primary IPM on most weld Heads should be set to 50 or 100 IPM (what
ever rate is closer to actual weld schedules) . Insure that the Wire Mode
switch is set to ON.
Note that no Start Delays or Stop Delays are used. It is very important for
calibration that the wire start feeding at the beginning of the 60 seconds of
Level 1 Time and stop at the end of the Level 1 Time.
5. Create or recall from the LIBRARY the appropriate Weld Schedule and
connect the Weld Head to be calibrated. Insure that the system is SAFE to
feed wire and that the System Mode is in TEST.
6. Jog the wire until it is at the end of the nozzle but not protruding.
7. Press Sequence Start. Wire should feed out 60 seconds. When Sequence is
over cut the wire flush with the nozzle and measure. It should be whatever
value was programmed. If it is not adjust the Wire Feed Cal Potentiometer on
the Weld Head. Repeat step 6 and 7 until the wire is calibrated.
5.11 MANUAL ADVANCE FUNCTION
All of the previous calibrations were based on the TIMER MODE being in the
AUTO position. If the TIMER MODE is in the MAN (manual) Mode the Levels can
only be advanced by the operator from the RP. Level Advance from the M-227 panel
is not possible
When not in Sequence the Next key on the RP is used in conjunction with the
Special Function Key . However, when in WELD SEQUENCE the NEXT Key
becomes the MANUAL ADVANCE Key.
If the Timer Mode is MAN the Level will advance, during Sequence, each time the
NEXT key is pressed. When in the last Level (could be 01 or 99) pressing the
NEXT Key is the same as pressing the SEQ STOP Key.
The Timer Mode (and most other function modes) can be changed by the Operator
by using the appropriate F key on the M-227 Panel.
5.16