GE Industrial Solutions ASTAT-CD Plus Solid-State Starters - Manual (Page 9)

ASTAT-CD Plus Service Instructions
9
Step 12. Reassemble the standoffs to the new Power
Supply Board. Reconnect the gate wires.
Reference Figure 8 for gate lead connections
for Size J, Figure 9 for Size K, or Figure 10 for
Sizes L and M.
Step 13. Reassemble the Logic Board, cover and
terminal connectors using Steps 6 - 7.
A PHASE
SCR
B PHASE
SCR
C PHASE
SCR
4 5 6 7 4 5 6 7 4 5 6 7
Y
Y
B
B
TB1
POWER BOARD - INVERTED
TB2 TB3
1 2 3 4 5 6 7 8 9 10 11 12
B = Blue(SCR-Cathode connection)
Y = Yellow(SCR-Gate connection)
A PHASE
SCR
B PHASE
SCR
C PHASE
SCR
4 5 6 7 4 5 6 7 4 5 6 7
Y
Y
B
B
TB1
POWER SUPPLY BOARD - SOLDERSIDE
TB2 TB3
1 2 3 4 5 6 7 8 9 10 11 12
B = Blue(SCR-Cathode connection)
Y = Yellow(SCR-Gate connection)
Figure 8. Gate lead connections (Size J)
Figure 10. Gate lead connections
(Sizes L and M)
SCR lead pairs are to be twisted to
reduce EMI (not shown in sketch).
A PHASE
SCR
B PHASE
SCR
C PHASE
SCR
4
5
6
7
4
5
6
7
4
5
6
7
Y
Y
B
B
TB1
POWER SUPPLY BOARD - SOLDERSIDE
TB2 TB3
1 2 3 4 5 6 7 8 9 10 11 12
B = Blue(SCR-Cathode connection)
Y = Yellow(SCR-Gate connection)
Figure 9. Gate lead connections (Size K)
Y = yellow wire (gate). B = blue wire (cathode)