Siemens MICROMASTER 411 - Manual (Page 9)

Issue 03/01 Safety Instructions
MICROMASTER 411 & COMBIMASTER 411 Operating Instructions
6SE6400-5CA00-0BP0 9
Commissioning
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 - see DIN
VDE 0160, section 5.5.2 and EN50178 section 5.2.11.1).
The following terminals can carry dangerous voltages even if the inverter is
inoperative:
♦ power supply terminals L1, L2, L3
♦ motor terminals U, V, W
♦ additionally the terminals DC+, DC-
This equipment must not be used as an ‘Emergency Stop mechanism’ (see
EN 60204, 9.2.5.4).
The inverter electronics contain static sensitive devices therefore precautions
must be taken against electrostatic discharge (ESD) when handling the
separated inverter assembly. These include not touching the internal surfaces
of the inverter and ensuring that personnel are earthed while handling the unit.
The terminal housing, including Filter and I/O modules, contain no sensitive
components and therefore no special handling precautions are required when
separated.
CAUTION
The connection of power, motor and control cables to the inverter must be carried
out as shown in Figure 2-10 respectively, to prevent inductive and capacitive
interference from affecting the correct functioning of the inverter.