Siemens Simatic M7-400 Manual do Utilizador descarregar pdf (Página 84)

100

101

Power Supply Modules

3-4

S7-400, M7-400 Programmable Controllers Module Specifications

A5E00069467-07

3.2 Redundant Power Supply Modules

Order Numbers and Function

Table 3-2 Redundant power supply modules

Type

Order Number Input Voltage Output Voltage See

Section

PS 407 10A R 6ES7407-0KR00-0AA0 85 VAC to 264 VAC or

88 VDC to 300 VDC

5 VDC/10 A and

24 VDC/1 A

3.8

PS 405 10A R 6ES7405-0KR00-0AA0 19.2 VDC to 72 VDC 5 VDC/10 A and

24 VDC/1 A

3.14

Redundant Operation

If you use two power supply modules of type PS 407 10A R or PS 405 10A R, you

can install a redundant power supply on a mounting rack. We recommend this if

you want to increase the availability of your programmable controller, particularly if

you are operating it on an unreliable power system.

Configuring a Redundant Power Supply

Redundant operation is possible with any of the S7 CPUs and racks described in

this manual. STEP 7 as of V4.02 is also required.

To set up a redundant power supply, insert a power supply module in slots 1 and 3

of the rack. You can then insert as many modules as can be supplied by a single

power supply module. In other words, in redundant operation all the modules can

only draw a total of 10 A.

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