WEG CFW300 V1.3X, Programming Manual

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Functions Common to All the Control Modes
CFW300 | 11-11
11
Output
frequency
Reference
P304
P3
04
P303
P3
03
2 x P306
2 x P306
Figure 11.9: Actuation of the skip frequency
11.6 FIRE MODE
The “Fire Mode” function is intended to make the frequency inverter continue to drive the motor even under
adverse conditions, inhibiting most faults generated by the frequency inverter. The “Fire Mode” is activated by
driving a digital input previously set to “Fire Mode” with logic level “0” at the input terminals. When the drive enters
the“Fire Mode”, the alarm “A211” will be generated on the HMI (keypad) and the status of the operation mode will
be updated in parameter P006.
DANGER!
“FIRE MODE” FUNCTION – RISK OF DEATH!
„
Notice that the CFW300 is only one of the components of the system, and it is configurable for
several functions that must be pre-established in the project.
„
Therefore, the full operation of the "Fire Mode" function, with the required safety, depends on the
specification in the project, as it also requires the compatibility with all the other components of
the system and the installation environment.
„
Ventilation systems that operate in life safety applications must be approved by the Fire Department
and/or another competent local public authority.
„
The activation of the “Fire Mode” function disables essential protection functions for the safety of
the CFW300 and of the system as a whole.
„
The non-interruption of the CFW300 operation due to the improper activation of the “Fire Mode”
function is critical, as it may cause injuries or even death, and damages to the CFW300, to the
other components of the system and to the environment where it is installed.
„
The operation in the “Fire Mode” function may, under certain circumstances, result in fire, as the
protection devices will be disabled.
„
Only qualified personnel from safety engineer departments must evaluate and activate the
equipment “Fire Mode” function.
„
It is essential to follow the aforementioned instructions before using the CFW300 in the "Fire
Mode" function.
Under no circumstance shall WEG take any liability for deaths, damages, compensations and/or losses
occurred due to the improper programming or operation of the CFW300 in the "Fire Mode" function.
IMPORTANT – RISK OF DEATH!
When activating the “Fire Mode” function, the user must be aware of the fact that the protection
functions of the CFW300 will be disabled, which may result in damages:
- To the inverter.
- To the components connected to it.
- To the environment where it is installed.
- To the people present in the place.
Therefore, the operator who activates the “Fire Mode” function takes full liability for the resulting risks.
The operation of the inverter with the “Fire Mode” function programmed voids the warranty of the
product.
The operation in this condition is internally registered by the CFW300, and it may be validated by an
engineer and occupational safety professional duly qualified by the manufacturer.