MAWA-050A
6. Timing Chart
6-8
After the H-HEAD UP signal is turned on after the lapse of the pre-flow set time, start moving the head to weld-point (main welding).
After the head is moved to weld-point (main welding), turn on the start signal (H-ST2). When the initial current time setting (FST) is set to 1 to 999
ms (= normal mode),
MAWA-050A
starts main welding after the initial current time is completed. When the initial current time setting (FST) is set
to 0 ms, the auto mode is set if the H-ST2 signal is turned on immediately after the head reaches the main welding position. The fine weld mode is
set if the H-ST2 signal is turned on at the time the electrode is detached from the workpiece. Refer to 6. (3) and 6. (4).
After every welding control is completed, the H-END signal is output. When the H-END signal is turned on, move the head to mid-point.
After the end of welding, the READY signal is output when the monitor judgment of welding is completed. Enter the next welding start signal after
checking output of the READY signal.
*1 The start signals 1ST and 2ND of the customer-prepared motor head are used for welding start.
*2 Start signal 1ST decision delay time. Refer to “4. (6)
(d) START signal input decision delay time.”
*3 Welding data creating time. About 60 ms for the first condition change or about 30 ms for the second or later change.
*4 After the initial current start signal H-ST1 is input, the initial current is started after the lapse of the pre-flow set time.
*5 The H-HEAD UP and H-END signals’ output times can be set to 1 to 200 ms according to the controller of the customer-prepared motor head.
Refer to “4. (6)
(g) [Op-IO] H-END signal output time” and “(i) [Op-IO] H-HEAD UP signal output time.”
*6 When setting the initial current time to 1 to 999 ms, set it longer than the time when the head moves to weld point (main welding). If shorter than
the moving time to weld point (main welding), the H-ST2 signal is not input by the end of the initial welding, and therefore the ST2 time error occurs.
*7 “END signal output time” can be set according to the customer’s controller. Refer to “4. (6)
(c) END signal output time.”
*8 “GOOD/NG signal output time” can be set according to the customer’s controller. Refer to “4. (6)
(b) GOOD/NG signal output time.”
*9 It becomes about 1300 ms when the High speed SCH change (No Wave) in 4. (6)
(h) is OFF and about 100 ms when it is ON. However, when
the END signal output time or the GOOD/NG signal output time is 100 ms or longer, it is made the same as OFF of the longer set time. Also, it
takes about 1700 ms when the current flows when ENVELOPE in the Limit output judgment on the Monitor select screen is ON. Refer to
ENVELOPE of “4. (11) (d) Limit judgment output.”
