Siemens 420 manual Installation Issue 07/04

2 Installation Issue 07/04

WARNING

♦Work on the device/system by unqualified personnel or failure to comply with warnings can result in severe personal injury or serious damage to material. Only suitably qualified personnel trained in the setup, installation, commissioning and operation of the product should carry out work on the device/system.

♦Only permanently-wired input power connections are allowed. This equipment must be grounded (IEC 536 Class 1, NEC and other applicable standards).

♦If a Residual Current-operated protective Device (RCD) is to be used, it must be an RCD type B. Machines with a three-phase power supply, fitted with EMC filters, must not be connected to a supply via an ELCB (Earth Leakage Circuit-Breaker EN50178 Section 5.2.11.1).

♦The following terminals can carry dangerous voltages even if the inverter is inoperative:

-the power supply terminals L/L1, N/L2, L3.

-the motor terminals U, V, W, DC+, DC-

♦Always wait 5 minutes to allow the unit to discharge after switching off before carrying out any installation work.

♦This equipment must not be used as an ‘emergency stop mechanism’ (see EN 60204, 9.2.5.4)

CAUTION

The connection of power, motor and control cables to the inverter must be carried out as shown in Fig. 2-8 on page 33, to prevent inductive and capacitive interference from affecting the correct functioning of the inverter.

MICROMASTER 420	Operating Instructions
22	6SE6400-5AA00-0BP0