PDP-5071PU
125
5
6
7
8
5
6
7
8
C
D
F
A
B
E
7.6 ADJUSTMENTS WHEN THE DRIVE ASSYS ARE REPLACED
TIME LAG ADJUSTMENT OF THE CONTROL SIGNAL (SUS-B)
1
Measure the time lag for the SUS-U signal to the SUS-B signal.
2
Check the time lag for the SUS-B GATE signal to the SUS-U GATE siganl.
Adjust the variable control so that the time lag of GATE becomes " time lag of input
α
±
5 nsec."
Note: For details on measuring points of waveform, see the figure below.
50 % of the crest value
50 % of the crest value
50 % of the crest value
time lag of SUS-U gate and SUS-B gate :
∆
Tsus-gub
Adjust so that "
∆
Tsus-gub =
∆
Tsus-iub +
α
±
5 nsec," using the variable
controls shown in the table below:
SUS-U signal (input to the DRIVE Assy)
SUS-B signal (input to the DRIVE Assy)
SUS-U signal (input to the DK module)
SUS-B GATE signal
50X MAIN DRIVE (GATE signal of Q1210)
50Y MAIN DRIVE (GATE terminal of Q2210)
50 % of the crest value
time lag of SUS-U and SUS-B
∆
Tsus-iub
time lag of SUS-U GATE and SUS-B GATE
∆
Tsus-gub
Assy
VR
Value of
α
50X MAIN DRIVE ASSY
VR1001
70 nsec
50Y MAIN DRIVE ASSY
VR2001
50 nsec
Waveform adjustments required when replacing the following parts of the 50X MAIN DRIVE and
50Y MAIN DRIVE Assys.
Assy Name
Ref No.
Part Name
Part Category
Remarks
50X MAIN DRIVE Assy
IC1205
PS9117P
Photo Coupler
IC1204
TND307TD
FET Driver
50Y MAIN DRIVE Assy
IC2104
TND307TD
FET Driver
IC2209
PS9117P
Photo Coupler
IC2208
TND307TD
FET Driver
Содержание PDP-5070PU
Страница 20: ...PDP 5071PU 20 1 2 3 4 1 2 3 4 C D F A B E 2 6 PANEL CHASSIS SECTION 1 9 2 11 4 7 7 7 7 7 3 7 8 7 7 6 5 10 10 ...
Страница 43: ...PDP 5071PU 43 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 47: ...PDP 5071PU 47 5 6 7 8 5 6 7 8 C D F A B E REGULAR AWV2313 AWW1154 ELITE AWV2310 AWW1158 ...
Страница 57: ...PDP 5071PU 57 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 79: ...PDP 5071PU 79 5 6 7 8 5 6 7 8 C D F A B E 500ns div 500ns div 200ns div ...
Страница 200: ...PDP 5071PU 200 1 2 3 4 1 2 3 4 C D F A B E Block Diagram R2S11002AFT MAIN ASSY IC4701 AV SW ...
Страница 201: ...PDP 5071PU 201 5 6 7 8 5 6 7 8 C D F A B E Block Diagram R2S11001FT MAIN ASSY IC4901 Component SW IC ...