Siemens S7-400PLC Specifikace stáhnout pdf (Strana 68)

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101

Power supply modules

3.7 Power supply module PS 407 4A (6ES7407-0DA02-0AA0)

S7-400 Automation System Module Data

68 Reference Manual, Edition 09/2009, A5E00850736-06

3.7 Power supply module PS 407 4A (6ES7407-0DA02-0AA0)

Function

The PS 407 4A power supply module is designed for connecting to either an AC line voltage

of 85 to 264 VAC or a DC line voltage of 88 to 300 VDC and supplies 5 VDC/4 A and 24

VDC/0.5 A on the secondary side.

Operator controls and indicators on the PS 407 4A

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Figure 3-3 Operator controls and indicators on the PS 407 4A

Power connection

An AC power connector is used for connecting the PS 407 4A to both an AC and DC supply.

Polarity reversal of L+ and L-

Reverse polarity of L+ and L- with supply voltages of between 88 and 300 VDC has no effect

on the function of the power supply. The connection should be made as described in the

instructions in the Installation Manual.

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