Siemens Simatic PC Panel PC 870 Service Manual download pdf (Page 39)

SIMATIC Panel PC 670/870 Commissioning Instructions 4–1

A5E00135748-01

4 Electromagnetic Compatibility

The Panel PC 670/870 meets the requirements of German EMC laws as well as

European Directives concerning EMC.

The following section includes information on interference immunity of the

Panel PC 670/870 and on interference suppression.

The Panel PC 670/870s have been conceived as installation devices with

Protection Class IP65 on the front side. Their installation in grounded metal

cabinets (e.g. 8 MC cabinet according to the NV21 catalog) guarantees compliance

with EN 61000-4-2 standards.

Pulse-shaped interference

Pulse-shaped interference Tested with Corresponds to

severity level

Electrostatic discharge

complying with

EN 61000-4-2

8 kV

4 kV

3 (Air Discharge)

2 (Contact Discharge)

Burst pulses (rapid, temporary

interference) complying with

EN 61000-4-4

2 kV (Power Line)

2 kV (Process Data Line)

High-energy single pulse

(Surge) complying with

EN 61000-4-5

(24 V model only with

protective lightning conductor

KT Type A D 24 V, Order No.

DSN:919253)

Asymmetric Connection

Symmetric Connection

2 kV (Power Line)

1 kV (Power Line)

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Siemens Simatic PC Panel PC 870 Service Manual Page 39