Cosmo RRV EC Series, Инструкции по эксплуатации и монтажу

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29
13.1
SPEED REFERENCE
The speed reference can be con-
tinuously adjusted from 0-100%
through a connected potentiome-
ter. Lower voltage signals as 1
Volt were evaluated as Stop sig-
nals. The same applies for the
speed setting through an external
0-10 Volt signal.
14
PROTECTIONS
In the integrated electronic of
the fan module the following monitoring and protective
functions are included:

Excessive temperature motor

Overcurrent faults

Power supply undervoltage

Mains overvoltage

Overspeed
15
DISTURBANCES
Caution! Danger of life!
The motor must operate for
each speed absolutely
smooth and constant. Disturbances on the fan can
lead to damages on the fan
unit.
For all work on the fan, the
maintenances and safety regulations must be observed.
Deviations from normal operating
states of the fan lead to functional
breakdown and must be maintai-
ned by the service personnel. The
following table gives an overview
of the possible failure reason as
well as indications for removal.