IMPORTANT SAFETY INFORMATION
PRODUCT
ACS6000
DOCUMENT KIND
User manual
DOCUMENT ID.
3BHS212794 E01
REV.
N
LANG.
en
PAGE
38/266
2.7.1. Safety and protection requirements
The system integrator must ensure that the following minimum safety and
protection requirements for the drive are met:
– ISO 13849-1
– IEC 60204-1
2.7.2. Safety and protection requirements for the MCB
The following safety requirements are also in the MCB specifications for the drive:
– MCB open and/or trip command: must be wired directly from the drive to the
MCB. If you want to wire the command through a PLC or DCS system, the
system must be certified to meet SIL three-level requirements and to fulfill the
maximum MCB opening timing requirements. The drive must also be able to
open the MCB at any time. It is not permitted to interrupt the open and/or trip
command, eg, with a local-remote switch in the MCB.
– Closing control of the MCB: when the MCB is in service position, the drive must
have exclusive control over closing the MCB, ie, local closing of the MCB is not
permitted.
– MCB maximum opening time: cannot exceed the maximum time that is defined in
the product or project-specific MCB specifications.
Typical maximum values for the drive are defined as follows:
– Maximum protection trip time: 75 ms
The maximum protection trip time is the maximum allowed breaking time
(open and arcing) of the breaking device after the open command has been
initiated to prevent further damage to the drive, such as diode failures.
– Maximum safety trip time: 500 ms
The maximum safety trip time is the maximum allowed time to ensure safe
disconnection of the main power supply to prevent any hazard to personnel.
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