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Page 59
Revised 7/95 DFS-1 Manual
POWERTEC Ind. Corp.©
APPENDIX A
RETROFITTING THE MODEL 1000, 1000A, OR 1000AR
The DFS-1 Model 1000 series retro-fit kit consists of:
Quantity 1 DFS-1 Printed Circuit Board with connector plugs
Quantity 1 10 Pin Connector Cable Part # 3570-141420-001
Quantity 1 14 Pin Connector Cable Part # 3570-141419-001
Quantity 2 Nylon Spacer #6 x 1/4” diam x 1/4” long
Quantity 2 Machine Screw, Pan-head, 6/32 x 1/2” long
Quantity 4 Star Washer, #6
1. Disconnect the cables from the Current Controller board to the Driver board (P2) and
the Capacitor board (P3) and let them hang for the time being.
2. Remove the 141-108 Current Controller board and the 141-107 Speed Controller
board and set them aside. These boards have two screws each which hold them to the
metal rail at the bottom and two hex nuts each which hold them to the Fuse board at
the top. Save two of the hex nuts to mount the DFS-1 board.
3. There are four metal studs on the bottom of the Fuse board at the top of the drive. The
two outside studs will be used to mount the DFS board, but the two center studs must
be removed. Remove them and set them aside.
4. Remove the 14 pin connector cable connected to the Driver board (left side of the
chassis), and replace it with the new cable 3570-141419-001. WARNING: Do
NOT use the original drive cables with the DFS-1 board. This will cause damage
to the drive circuitry. Either end of the cable may be plugged into the Driver board.
Let the other end hang down the left side of the chassis because it will connect to the
left side of the DFS board.
5. Remove the 10 pin connector cable connected to the Capacitor board (right side of
the main chassis) and replace it with the new cable 3570-141420-001. Either end of
the cable may be plugged into the Capacitor board. The other end of this cable will
connect to the left side of the DFS-1 board, so make sure you stretch it across the
chassis behind the DFS-1 board.
6. Mount the top of the DFS-1 board on the two outside studs at the bottom of the Fuse
board using a star washer on each and the hex nuts saved when the other boards were
removed.
7. Secure the bottom of the DFS-1 board to the rail, which previously supported the
bottom of the Current and Speed boards, with the two screws supplied. The nylon
spacers must be mounted between the DFS-1 board and the metal rail. Use a star
washer between the DFS-1 board and the head of the screw.
8. Connect the 14 Pin connector cable to P2 on the left side of the DFS-1 board.
9. Connect the 10 Pin connector cable to P4 on the left side of the DFS-1 board.
Turn to section 1.0 of the DFS-1 manual to make the connections required.