Wilo Stratos GIGA2.0-I Notice De Montage Et De Mise En Service page 250

en
250
Faults, causes and remedies
Code Warning
Additional information
about causes and rem-
edy:
The pump is running.
Undervoltage reduces
the pump output.
If the voltage falls below
324 V, the reduced op-
eration cannot be main-
tained.
552 There is externally gen-
erated flow through the
pump in the direction of
flow.
Additional information
about causes and rem-
edy:
The pump can start des-
pite flow.
553 Electronic module is de-
fective.
Additional information
about causes and rem-
edy
The pump is running,
but cannot provide full
power under the cir-
cumstances.
Contact service.
1)
554 MFA pump is not
reachable.
Additional information
about causes and rem-
edy
1)
In the MFA overview,
check the pump high-
lighted with (!).
The supply is ensured, a
substitute value is as-
sumed.
555 No plausible sensor
value at analogue input
AI1.
Additional information
about causes and rem-
edy
Incorrect sensor values
may lead to substitute
operating modes
that ensure functioning
of the pump without the
required sensor value.
556 Cable break at analogue
input AI1.
Cause Remedy
External influences Check power control of the
cause flow in the other pumps.
pump's direction of
flow.
Electronic module is Replace electronic module.
defective.
1)
A MFA partner pump Check Wilo Net connection
no longer reacts to or power supply of the
requests. partner pump.
The configuration Check configuration of the
and the present sig- input and connected
nal lead to an unus- sensor.
able sensor value.
The configuration Check configuration of the
and the present sig- input and connected
nal help identify the sensor.
cable break.
WILO SE 2021-12