Siemens PC 870 Operations Instructions download pdf (Page 36)

Connecting

6.6 Connect the 120 AC 230 V power supply

Panel PC 870 V2, Computer Unit

6-8 Operating Instructions, Edition 03/2004, CD Documentation and Drivers

For USA and Canada:

A CSA or UL-listed power supply cable must be used in the United States and Canada USA.

Notice

Ensures that the plug conforms to the NEMA 5-15 regulation.

120V power supply

Use a flexible cable with the following characteristics:

• UL approval

• CSA label

• Type STJ with three conductors

• At least 18 AWG conductor cross-section

• Maximum 4.5 m length

• Parallel grounded safety plug 15 A, min. 125 V

230V power supply

Use a flexible cable with the following characteristics:

• UL approval

• CSA label

• Type STJ with three conductors

• At least 18 AWG conductor cross-section

• Maximum 4.5 m length

• Parallel grounded safety plug 15 A, min. 250 V

Procedure

1. Insert the supplied power cable into the AC/DC power socket of the computer unit.

2. Fasten the power plug with the locking device supplied in the package. This will prevent

unintentional detachment of the IEC power connector on the computer unit.

3. Only for Panel PC 670: To prevent emitted interference, connect the supplied ferrite core

. directly behind the device socket of the power supply cable. A ferrite core is supplied

with the product package.

When using a 105 W AC power supply, attach the ferrite core as diagrammed:

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Siemens PC 870 Operations Instructions Page 36