APPENDIX C: SYSTEM TIMING
IS-300CA INVERTER POWER SUPPLY
C-4 990-418
One-Stage Start
A: DELAY START SET setting + Welding preparation time
The welding preparation time changes depending on the WELD TRANS FREQ(frequency) setting.
Frequency [Hz] Welding preparation time [ms] Frequency [Hz] Welding preparation time [ms]
600 1.1 1000 to 1200 0.7
700 1.0 1300 to 1600 0.6
800 0.9 1700 to 2400 0.5
900 0.8 2500 to 3000 0.4
B: END SIG. TIME setting
The output time changes depending on the OFF time. See Chapter 3, Section 10, sub-section c. End Signal Time.
C: Monitored value judgment time 200μs max.
(Note 1) To stop the sequence during SQD or SQZ(possible only when LATCHED or MAINTAINED is selected
for START SIG. MODE; see Chapter 3, Section 10, sub-section b. Start Signal Mode, stop the 2ND
STAGE input for a period longer than that set for DELAYSTART SET.
(Note 2) When the current gets out of the range of upper/lower limit judgment (ERROR) in a sequence, repetition
operation ends even if the OFF time is set.
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