Watlow QPAC Modular SCR Power Control Service - Manual (Page 32)

32 WATLOW QPAC Service Manual
Waveforms, Appendix
Appendix
Figure 25 Scope Picture 10
QBV 5ms/div
1) FWZ (TP1) 2) Output Pulses (TP4)
Figure 26 Scope Picture 11
QBV Sequence at 50% Output
TP1, TP2, TP4, and TP5
Figure 27 Scope Picture 12
QAF and QAL 2ms/div
1) FWZ (TP1) 3) Comparator Output (TP3)
2) Ramp (TP2) 4) Load Current QAF and QA
Figure 28 Scope Picture 13
QAF and QAL 2 Second/div
1) ESD (TP4) 2) Soft Start Dump (TP5) 3) Ramp (TP6)
Figure 29 Scope Picture 14
QAD 2ms/div
1) FWZ (TP1) 2) +ZX180 (TP2) 3) –ZX180 (TP3)
Figure 30 Scope Picture 15
QAD 2ms/div
1) +ZX180 (TP2) 3) Output Pulse
2) –ZX180 (TP3) 4) Load Current (TP5)
5V/div
2V/div
5V/div
5V/div
5V/div
5V/div
2V/div
5V/div