Wilo Stratos PARA Série Notice De Montage Et De Mise En Service page 45

Faults Causes
Motor overload Deposits in the pump
Short-circuit Motor/module defec-
tive
Contact/winding Contact problems
error with the motor.
Motor winding motor
or plug is damaged.
Dry run Venting faulty
Excess module Limited air supply to
temperature the heat sink of the
module
Table 10: Faults
If the operating fault cannot be remedied, please consult a specialist technician or the
nearest Wilocustomer service point or representative.
Installation and operating instructions Wilo-Stratos PARA/-Z
Behaviour of the
pump/remedy
The motor stops when
overload has been
detected and restarts
after a delay.
The motor stops from a
short circuit and
restarts after a delay.
After 25 unsuccessful
starts the motor is
switched off
permanently.
Motor restarts after a
delay. After 5
unsuccessful starts the
motor is switched off
permanently.
Motor restarts after a
delay.
Operation of the pump
outside the permissible
temperature limits.
Description
When the motor's power limit
has been reached, the motor
stops. A restart is initiated
after 30 seconds. The pump
starts automatically when the
motor's power is below the
limit.
After a short circuit the motor
is shut off. It is reactivated
after 1 seconds. After 25 short
circuits it is shut off perma-
nently. This can only be reset if
the power is disconnected for
>30 seconds. The SSM relay is
active as long as the internal
error counter is not ZERO.
If contact between the motor
and module fails, the motor is
shut off. A restart is initiated
after 30 seconds. After it has
been switched off five times
the motor is shut off perma-
nently. This can only be reset
by switching off the current for
> 30 seconds. The SSM relay is
active as long as the internal
error counter is not ZERO.
After being exposed to dry-
running conditions for a
certain time frame the motor is
shut off. It restarts after a delay
of 30 seconds. The pump runs
automatically under normal
conditions when dry running is
longer present.
If the interior temperature of
the module increases
excessively, the pump
switches off and reports a fault
(SSM relay is active). The pump
automatically restarts after
cooling down.
English
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