UPS1000Z, UPS1200Z, UPS500G and UPS600G Uninterruptible Power Supplies Caterpillar

Description

Illustration 1	g01272361
(1) Fan monitor board

The fan monitor board (FAN) (1) provides power to the system cabinet. Also, the fan monitor board (1) monitors the status of the three cooling fans. The board (1) also provides power for the three cooling fans in the I/O cabinet.

The cooling fans are located on the top of the system. Each fan has a status bit that is sent to the system controller.

The Fan Monitor board (1) also monitors the power supplies in the cabinet.

Removal Procedure

Refer to Systems Operation, Testing and Adjusting, UENR3954, "Internal Component Preremoval Steps (MMS System Cabinet)" in order to shut down the system and gain access to internal components.

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Illustration 2	g03799583
Fan monitor board (5) J8 connector (6) J3 connector (7) J4 connector (8) J1 connector (9) J5 connector (10) J7 connector (11) J6 connector (12) J2 connector

1. Disconnect all connectors. Refer to Illustration 2. Verify each labeling on the connector with the location of the wire. Verify each label on each connector.

2. Disconnect the four white plastic standoffs that connect the board (1) to the left panel.

   Note: The board (1) must be removed from the standoffs without bending the board (1).

Installation Procedure

1. Position the board (1) in the cabinet over the four white standoffs that are connected to the left panel.

2. Push the board (1) onto all the standoffs simultaneously. Verify that all standoffs are locked in place.

3. Connect the wire connectors into the correct connectors on the board (1). Check the labels on each connector for proper placement. Refer to Illustration 2.

Note: The number of the fuse relates to the number of the fan.