Exclusion Of Liability - Siemens SED2 Application Manual

Caution
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Siemens
Building Technologies
• Do not allow children or the general public to access or approach this equipment
• Do not install the VSD where it will be subjected to shock, vibration, electromag-
netic radiation, water hazards, or atmospheric pollutants such as dust or corro-
sive gasses
• Keep Operating Instructions, etc., with this equipment or with the end-user
• Use this equipment only for the purpose specified by the manufacturer. Do not
carry out any modifications or fit any spare parts, which are not sold or recom-
mended by the manufacturer; as this could cause fire, electric shock or other in-
juries
2.1

Exclusion of liability

The user of the SED2 variable speed drive must be aware that fire/emergency op-
eration may only be activated should crucial events occur (e.g. fire), where contin-
ued operation of the motor (fan) is mandatory to ensure smoke and heat extraction,
for instance, in order to facilitate the evacuation of people.
When triggering fire/emergency operation, certain alarm and fault status messages
of the SED2 (e.g. overtemperature of SED2, breakdown of bus communication) will
be suppressed. In the case of other faults (e.g. overvoltage or overcurrent), restarts
will permanently be triggered. Suppression of the protective functions shall ensure
that – during fire/emergency operation – the motor continues to run as long as
possible.
When using this operating mode, damage to the SED2 itself cannot be excluded,
be it due to failure of internal components or fire caused by excessive heat. In addi-
tion, it must be taken into account that – due to the parameterized behavior of the
SED2 – other HVAC plant components can also be damaged during fire/emer-
gency operation. This includes air dampers, for example, which can be damaged
as a result of overpressure (e.g. when the maximum motor speed is parameter-
ized). Such damage can lead to HVAC plant malfunction or failure – a fact to be
considered when triggering fire/emergency operation.
For these reasons, Siemens Building Technologies assumes no responsibility for
any faults, malfunctions and damage of the SED2 itself or of any other types of
components used in the relevant HVAC plant, or for direct or indirect damage re-
sulting from activation of fire/emergency operation.
The correct functioning of fire/emergency operation depends on the right selection
of the HVAC system components of which the SED2 constitutes only one compo-
nent. Plant used in vital sectors, such as ventilation plant that need to mandatory
and constantly deliver a certain amount of outside air, must be approved by the re-
spective authorities.
Fire/emergency operation can be triggered via one of the six digital inputs DIN1...6.
The BOP display shows alternately "ES" and the motor's frequency.
Fire/emergency operation can be deactivated any time via the digital input that was
used for activation. Then, the SED2 will resume normal operation as parameter-
ized.
Application Guide «Fire Mode»
Safety and CE compliance
CM1A5192en_01
23.10.2007