D SERIES CONTROLLER
TROUBLESHOOTING AND COMPONENT REPLACEMENT
2-9
Kaaaw sk
2.2.5 1NR BOARD (BRAKE CONTROL BOARD)
1. Turn OFF the control power.
2. Loosen the screws on top and bottom of the 1NR board, and pull out the 1NR from the
card rack by holding the ejectors at both ends of the board. If wired to the front connector,
remove the connector first.
3. Confirm that settings for J1, J2 and J3 on the new 1NR are the same as before board
replacement. Then, insert the new 1NR to the card rack and set it in the mother board.
4. Fasten the screws on top and bottom of the 1NR.
J3
Ejector
Screw
Overview of the 1NR board
Ejector
Screw
J2 J1