Siemens S5-135U/155U appendix No backup

Central Controllers and Expansion Units Power Supply Units

Requirement:

Redundant backup, ªSpare power supplyº with rechargeable battery. The lithium battery in the rack in in full working order.

Step

1

2

3

4

5

6

Action

Disconnect the faulty power supply from the system voltage and remove it.

Set the jumpers on the spare power supply according to your needs.

Push the spare power supply into the rack and screw it in place.

Remove the right-hand fan subassembly from the spare power supply.

Connect up the replacement power supply.

Switch on the system voltage and the power supply in any order.

Reaction:

±The system runs up

±Both fans run at an increased speed

±The LEDs ªFan 3º and ªRB lowº light up.

7

8

Reinsert the right-hand fan subassembly.

After the system has run up, press the reset switch on the spare power supply.

Reaction:

±The LED ªFan 3º goes out

±The fans run at their normal speed again

±The LED ªRB lowº shows the battery charge state.

Requirement:

No backup

Step

1

2

3

4

5

Action

Disconnect the faulty power supply from the system voltage and remove it.

Set the jumpers on the spare power supply according to your needs.

Push the spare power supply into the rack and screw it in place.

Connect up the spare power supply.

Switch on the system voltage and the power supply in any order.

Reaction:

± The system runs up.

4-48	System Manual
	C79000-G8576-C199-06