Wilo Stratos GIGA2.0-D, Инструкция по установке и эксплуатации

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en Faults, causes and remedies
250 WILO SE 2021-12
Code Warning Cause Remedy
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. External influences
cause flow in the
pump’s direction of
flow. Check power control of the
other pumps.
Additional information
about causes and rem-
edy:
The pump can start des-
pite flow.
553 Electronic module is de-
fective. Electronic module is
defective. Replace electronic module.
Additional information
about causes and rem-
edy
The pump is running,
but cannot provide full
power under the cir-
cumstances.
Contact service.
554 MFA
1)
pump is not
reachable.
A MFA
1)
partner pump
no longer reacts to
requests.
Check Wilo Net connection
or power supply of the
partner pump.
Additional information
about causes and rem-
edy
In the MFA
1)
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. The configuration
and the present sig-
nal lead to an unus-
able sensor value. Check configuration of the
input and connected
sensor.
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. The configuration
and the present sig-
nal help identify the
cable break. Check configuration of the
input and connected
sensor.