Siemens S7-400PLC Dokumentacja Pobierz pdf (Strona 142)

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Digital modules

4.14 Digital output module SM 422; DO 16 x DC 24 V/2 A; (6ES7422-1BH11-0AA0)

S7-400 Automation System Module Data

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

4.14 Digital output module SM 422; DO 16 x DC 24 V/2 A; (6ES7422-

1BH11-0AA0)

Features

The digital output module SM 422; DO 16 x DC 24 V/2 A has the following features:

● 16 outputs, isolated in two groups of 8

● Output current 2 A

● Nominal load voltage 24 VDC

The status LEDs also indicate the system status even when the front connector is not

inserted.

A note about commissioning

The following technical feature applies to the digital output module SM 422;DO 16 x

DC 24 V/2 A with the order number 6ES7422-1BH11-0AA0 but not to the digital output

module SM 422; DO 16 x DC 24 V/2 A with the order number 6ES7422-1BH10-0AA0:

To commission the module, it is not necessary to apply load voltage (1L+ and 3L+, for

example,) to each group of 8 outputs. The module is fully operative even if only one group is

supplied with L+.

Note

It is no longer possible to switch off all the outputs by disconnecting a single L+ supply as

might have been the case with the previous module (6ES7422-1BH10-0AA0).

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