Amada MD-A8000B-05 Series, Operation Manual

Page: 34 / 95

MD Series
5. Connection
5-14
● When the polarity-switching method is selected
(When SCHEDULE MODE on the STATUS screen is set to DOUBLE and
START SIG. INPUT on the STATUS screen is set to 2ND)
Remarks SQ: Squeeze time RC: Resistance precheck time
CP: Resistance judging time (2 ms) U1: Upslope 1 time
W1: Weld 1 time D1: Downslope 1 time CL: Cool time
U2: Upslope 2 time W2: Weld 2 time
D2: Downslope 2 time HD: Hold time
*1: Time of polarity-switching signal (Refer to
6
On the polarity-switching signal.)
*2: Welding is not performed in W1 and W2 when a fault or caution occurs in
precheck welding.
*3: Normal, fault, and caution signals: When the monitor value is within the setting
range, a normal signal is output. When the monitor value is outside the range or
a fault occurs, a fault or caution signal is output. The selection of fault signal or
caution signal can be changed on the ERROR SETTING screen.
The timing of schedule select, start input, end signal, etc. is the same as that of the
standard mode.
(CAUTION)
(GOOD)
(END)
(SOL)
Weld force output
Welding current
End signal output
Normal signal output
(NG)
Fault signal output
Caution signal output
Welding current
(PO/CH SEL)
Polarity-switching select input
(SCH1～16,2ND STAGE)
(PO/CH SEL)
Polarity-switching select input
*1
CP RC SQ
CP RC SQ
W1
W1
HD
*2
HD
*2
*3
U1 D1 U2 D2
W2 CL
W2 CL
U1 D1 U2 D2
Schedule select, Start input