Siemens SIMATIC TI500 Spezifikationen PDF herunterladen (Seite 140)

4-57

SIMATIC 545/555/575 System Manual

Installing 575 System Hardware

To install a J2 backplane, follow these steps:

1. Unplug the battery connector, unscrew the two battery retaining

screws, and remove the battery from the rear of the unit.

2. Remove the 6 screws (3 per side) that hold the rear panel, and remove

the rear panel from the unit (see Figure 4-31).

3. Remove the M2.5 x 10mm screws that hold the backplane spacers.

4. Mount the backplane with the spacers between the chassis rails and

the backplane, using the M2.5 x 10mm screws, as shown in

Figure 4-32.

NOTE: To help align the backplane properly, install a VME card that has a

P2 connector in the base so that it mates with a J2 backplane connector.

Existing J1 Backplane

Optional J2 Backplane

(full backplane or

individual backplane kit)

M2.5 x 10mm screw

Chassis rail

Backplane spacer

Figure 4-32 Installing J2 Backplane

5. If you are using the single-slot J2 Backplane Kit, connect the blue lead

to the GND lug and the red lead to the +5 V lug on the J1 backplane

(refer to the J2 connector installation instructions).

6. Replace the rear panel and the battery assembly.

Installing Optional

J2 Backplane

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