Short Circuit - Wilo -Yonos ECO BMS Installation And Operating Instructions Manual

Faults Causes
Short-circuit Motor/module
defective
Contact/ Contact problems
winding 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 on the pump
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-Yonos ECO BMS
Performance of the
pump/remedy
The motor stops
from a short circuit
and restarts after a
delay. After 25
unsuccessful starts
the motor is
switched off perma-
nently.
Motor restarts after
a delay. After 5
unsuccessful starts
the motor is
switched off perma-
nently.
Motor restarts after
a delay.
Operation of the
pump outside the
permissible temper-
ature limits.
Description
After a short circuit the motor is
shut off. It is reactivated after
1 seconds. After 25 short circuits
it is shut off permanently. 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 sec-
onds. After it has been switched
off five times the motor is shut off
permanently. 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.
After being exposed to dry-run-
ning conditions for a certain time
frame the motor is shut off.
It restarts after a delay of
30 seconds. The pump runs auto-
matically 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. A restart is initiated after
30 seconds. After it has been
switched off five times the motor
is shut off permanently. This can
only be reset if the power is dis-
connected for >30 seconds.
The SSM relay is active as long as
the internal error counter is not
ZERO.
English
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