Rockwell Automation 1336S User Manual

Instructions

1336 PLUS II AC Drive Main Control Board Replacement

Frames A - G

This publication will guide you through replacement of the Main Control Board on 1336 PLUS II Adjustable Frequency AC Drives.

ATTENTION: This drive contains ESD (Electrostatic Discharge) sensitive parts and assemblies. Static control precautions are re-

quired when installing, testing, servicing orrepairingthisassembly. Component damage may result if ESD control procedures are not followed. If you are not familiar with static control procedures, reference publication 8000-4.5.2, “Guarding Against Electrostatic Damage” or any other applicable ESD protection handbook.

Replacement Procedure Important:

Refer to the ﬁgure on page 2 for component locations.

1. Remove and lock-out all incoming power to the drive.

2. Remove/open front cover or remove entire enclosure (on smaller drives)

as required for adequate access.

3. If a HIM (or other snap-in module) is installed, remove it by carefully

squeezing the locking tabs in and pulling out.

4. If a Communications Option (1336-GM1, etc.) is installed in the Adapter

6 location, remove it and transfer it to the new Main Control Board.

5. If a Control Interface Board (L option) is installed, carefully remove the

board by loosening the 2 captive screws. Position the board and attached wires off to the side of the chassis.

6. If a Control Interface Board is not present, transfer the jumpers at pins 3

& 4 and 17 & 18 of J2 to the same location on the new Main Control Board.

7. Remove the screws securing the HIM cradle. Remove the cradle.

8. If an Analog Interface Board (LA1, LA2, etc.) is installed in Slot A or B,

note placement and carefully remove the board by releasing standoffs and lifting straight out. Transfer this board (and standoffs, if needed) to the same slot on the new board. Repeat if a second board is present.

ATTENTION: To avoid a shock hazard, assure that all power to the drive has been removed before proceeding with the following procedure. In addition, verify that the DC bus has discharged by measuring across the “+DC” and “–DC” terminals of TB1 with a voltmeter. The voltage should be 0.0VDC.

If parameters were not previously uploaded to a HIM with Upload/ Download Capability, it is recommended that they be uploaded now, if possible. This will allow downloading after the new board has been installed, thus preventing complete re-programming.

2 1336 PLUS II AC Drive Main Control Board Replacement

9. If Slot A and/or Slot B were not occupied by an option board, jumpers

will be present at J9/J10. Locate these jumpers and note placement. Transfer the jumpers to the same location on the new Main Control Board.

10. Locate jumpers J8, J11 and J13. Note jumper placement – then transfer

jumpers to the same location on the new board.

11. Label and remove any remaining cables/wires from the board.

12. Remove the screws securing the Main Control Board. Remove the board

and set aside. On B-G Frame drives, the board must be removed from the mounting plate.

13. Install the new Main Control Board – re-assemble components in reverse

order. Verify that option boards and jumpers are correctly inserted (see the 1336 PLUS II User Manual for details).

Important:

When replacing connectors, it is essential that correct alignment is veriﬁed. Particular attention should be paid to ribbon cable connectors. Misalignment of connectors could result in damage to the drive.

ATTENTION: Replace any guards previously removed before applying power to the drive. Failure to replace guards may result in

death or serious injury.

Control Interface Option

J9, J10

J8, J11, J13

Frames A1 - A4

14. Apply drive power – if a fault occurs, “Reset Defaults.” Download

parameters (if previously uploaded) from the HIM.

Internal Communication

SLOT B

ANALOG I/O

SLOT A

ANALOG I/O

7531

(Adapter 6)

ESC

SEL

JOG

J8, J11, J13

Frames B - G

Analog Option Board

(Slot A)

Slot B

J9, J10

SLOT A

ANALOG I/O

8642

7531

J10

SLOT B

ANALOG I/O

8642

7531

J10

8642

7531

Slot B

Control Interface Option

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Publication 1336 PLUS-5.71 – April, 1998 P/N 191104 (01)