Important Circuit Information; General Information - Siemens 6SN1123-1AA00-0DA2 Configuration Manual

Important Circuit Information

8.1

General information

Note
The following circuit examples, information and descriptions are of a general
nature and are not binding from a legal perspective. Every system must be
adapted to ensure that it is complete and is correct for the particular application.
These circuit examples are intended to support the machinery construction
OEM/user when integrating the SIMODRIVE 611 drive system – from the
control perspective – into the overall control concept of his machine/system.
The users are responsible for ensuring that the overall control is in compliance
with the Guidelines/Standards applicable for their particular application and the
safety measures, derived from the hazard analysis/risk assessment to avoid
injury to personnel and damage to machine, have been appropriately
engineered and implemented.
Warning
!
After the line isolating devices (main switch/breaker) or the line contactor have
been opened, residual energy and hazardous touch voltages are still available
at the power DC link of the drive group while the DC link capacitors discharge –
max. 30 min. This means that these hazardous touch voltages are also
available at components that are electrically connected to the DC link
(terminals, cables, switching devices, motors, etc.). This must be carefully
taken into consideration as part of the hazard analysis/risk assessment.
After 30 minutes, a residual voltage up to 60 V DC can still be present!
Any damaged DC link covers must be replaced immediately. Operation of the
plant with damaged DC link covers is not permitted!
Service personnel must ensure that the complete plant or system is actually in
a no–voltage condition before they perform any service, maintenance and
cleaning work!
Warning
!
Before the drive group is powered–up or powered–down using the line supply
isolating device (main switch/breaker) or a line contactor, terminal 48 start
and/or terminal 63 pulse enable must be de–energized at the NE module. This
can be realized, for example, using a leading auxiliary contact at the main
switch.
For specific drive configurations it may not be necessary to use a leading
contact when powering–down the NE modules. For information refer to Chapter
7.3.6.
© Siemens AG 2012 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
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