Siemens MICROMASTER 420 - Manual (Page 27)

Issue 07/04 2 Installation
MICROMASTER 420 Operating Instructions
6SE6400-5AA00-0BP0 27
2.4 Electrical installation
WARNING
The inverter must always be grounded.
♦ To ensure the safe operation of the equipment, it must be installed and
commissioned by qualified personnel in full compliance with the warnings laid
down in these operating instructions.
♦ Take particular note of the general and regional installation and safety
regulations regarding work on dangerous voltage installations (e.g. EN
50178), as well as the relevant regulations regarding the correct use of tools
and personal protective gear.
♦ Never use high voltage insulation test equipment on cables connected to the
inverter.
♦ The mains input, DC and motor terminals, can carry dangerous voltages even
if the inverter is inoperative; wait 5 minutes to allow the unit to discharge
after switching off before carrying out any installation work.
CAUTION
The control, power supply and motor leads must be laid separately. Do not feed
them through the same cable conduit/trunking.