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Siemens Simatic S7-400 User Manual

Page 489

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M7-400 Expansions

12-19

S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07

12.3.2

Technical Specifications of the ATM 478 AT Adapter Module

Technical Specifications of the ATM 478

The table below contains the technical specifications of the ATM 478 AT adapter
module:

ATM 478

6ES7 478-2CA00-0AC0

Performance Features

Number of connectable
AT modules (short)

1

Connection of
expansion modules

Yes

Technical Specifications

Supply voltage

5 VDC

Current consumption
(without AT module)

0.12 A

Current consumption of
the AT module

See calculation of
current consumption

Power losses
(without AT module)

0.6 W

Permissible power losses
(with AT module)

Without forced
ventilation

With forced ventilation

max. 10 W

max. 12 W

Dimensions
W x H x D (mm)

25 x 290 x 230

Weight (without AT module) 0.74 kg

Supply of the AT Module

Supply voltage

max. current

+ 5 V (4.75 V to 5.25 V)

4 A

- 5 V (- 4.4 V to - 5.3 V)

70 mA

+ 12 V (11.7 V to 12.3 V)

500 mA

- 12 V (- 10.9 V to - 13.5 V)

100 mA

The supply voltages -5 V, +12 V, and -12 V are
monitored. In the event of a fault, the “INTF” LED
on the CPU or application module lights up.

Calculation of Power Consumption

You can calculate the power consumption of the short AT module using the
following formula:

I

(AT module)

= I

(- 5 V

) x 1.3 + (I

(+ 12 V)

+ I

(- 12V)

) x 3.12

This manual is related to the following products: