Electrical Installation - Siemens SINAMICS G110 Operating Instructions Manual

04/2005

2.9 Electrical Installation

WARNING
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.
Never use high voltage insulation test equipment on cables connected to the
inverter.
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.
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.
The inverters can be installed in a side-by-side configuration with a minimum
distance as shown in Figure 2-4 on page 22.
CAUTION
The control, power supply and motor leads must be laid separately. Do not feed
them through the same cable conduit/trunking.
2.9.1 General
WARNING
The inverter must always be grounded. If the inverter is not grounded correctly,
extremely dangerous conditions may arise within the inverter, which could prove
potentially fatal. This also applies to ungrounded IT supplies
Operation with ungrounded (IT) supplies
Filtered inverters CANNOT be used on ungrounded supplies.
FSA unfiltered inverter can be used on ungrounded supplies.
If an output phase is shorted to ground, the inverter may trip with F0001
(overcurrent).
FSB and FSC can be used on ungrounded supplies, but it is necessary to cut
the 'Y' capacitor link as described in Removal of 'Y' Capacitor Link on page 79.
If an output phase is shorted to ground, the inverter may trip with F0001
(overcurrent).
SINAMICS G110 Operating Instructions
6SL3298-0AA11-0BP0
Installation
23