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PRECAUTIONS
-
--!
WARNING- --
DISCONNECT ALL AC AND DC POWER SOURCES FROM THE BATTERY
CHARGER BEFORE PROCEEDING. ONLY QUALIFIED SERVICE TECHNICIANS
SHOULD PERFORM THIS PROCEDURE.
EMPLOYER'S STANDARD SAFETY PROCEDURES.
-
--!
WARNING- --
OPENING CIRCUIT BREAKERS DOES NOT REMOVE ALL DANGEROUS
VOLTAGES FROM INSIDE THE CHARGER. AFTER AC AND DC POWER ARE
REMOVED, VERIFY THAT DC FILTER CAPACITORS (C1 AND/OR C2) ARE
DISCHARGED BEFORE PROCEEDING.
- --NOTICE- --
GROUND YOURSELF WITH A WRIST STRAP.
CAUSE DAMAGE TO PRINTED CIRCUIT BOARDS.
PROCEDURE
1. Shut down the AT Series battery charger per the Operating and Service Instructions.
2. Open the charger front panel (door) and remove any supplied acrylic safety shields.
3. Refer to the table on the previous page. Mount the Communications Module Power Supply
Resistor ( R29 ) Assembly inside the battery charger (normally located near R3).
4. Remove the CU-AL compression lug from TB1(+) on the charger I/O panel. Connect the
flying lead of wire # 191 coming from the R29 resistor assembly to the TB1(+) stud terminal,
and remount the CU-AL compression lug.
5. Refer to the table on the previous page. Connect the flying lead of wire # 195 of the R29
resistor assembly to the AT Series battery charger "system common" contact point.
6. Connect the new Ground Wire.
7. Route the remaining wires # 194 & 195 (which end at the 4-pin Molex-type plug) along the
charger's main signal harness. The wires will lead to the left side of the Main Control PC
Board ( A1 ), mounted on the charger's front panel. Tie-wrap the new wires in place.
8. Handling all pc boards by their edges, remove the existing Main Control PC Board ( A1 ) and
Gate Driver PC Boards ( A11/A15 ) if applicable, off the nylon stand-offs.
9. If a terminator plug (p/n EJ5201-00 ) is present and attached to A1-J13, remove & discard it.
10. Carefully insert the Communications Module PC Board ( A12 ) onto the Main Control PC
Board ( A1 ) by inserting A12-P13 onto A1-J13. See detail drawing (JE5107-00).
11. Return the connected pc boards ( A1/A12 ) to the back of the front control panel, and carefully
snap them onto the nylon stand-offs. Confirm all pc boards are firmly seated.
12. Insert the white nylon 4-pin Molex-type plug from the R29 resistor assembly into socket
( J20 ) in the upper-left corner of the AT Series Communications Module PC Board (A12).
13. Close the AT Series battery charger front panel (door).
14. Turn on the charger's dc output circuit breaker ( CB2 ) first, followed by the ac input circuit
breaker ( CB1 ) second.
15. Restart the AT Series battery charger per the Operating and Service Instructions.
16. Field Installation of the AT Series Communications Module is now complete. For full
operation of the installed module, please refer to the supplied AT Series Communications
Module user's manual (JA0102-04).
APPENDIX B
FOLLOW THE SITE AND YOUR
STATIC ELECTRICITY MAY
39
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