Grain Systems PNEG-630 - Manual (Page 53)

Portable Dryer Troubleshooting
52
SCR Drive Circuit
To Coil
WITH POWER WIRES UPPER POWER STRIP TO TERMINAL ON
CONTACTOR
SCR
S C R Board
To SCR Drive Motor
F +
F -
L 1
L 2
A -
A +
A - A +
L 1 L 2
Fuse
220 Volt
COIL
L1 T1
T2 L2
A2 A1
PUR
SCR 2 J6-4 J6-1 J8-20
SCR P3 SCR P2 SCR P1 SCR POWER SCR NEUTRAL
J8-10
BLK BLK
OR
OR OR
3
2
1
7
5
8
6
P P P W
Wiring Reference