Wilo Protect-Modul C Einbau- Und Betriebsanleitung Seite 23

Operating element
Operation light signal
green
Fault signal light
"Stoppage" red
Fault signal light
"Winding Overheat"
red
Operating signal
contact
Fault signal contact
Fault signal light
"Stoppage" red
1)
After acknowledging a fault, the Protect-Module C will be in a special control loop for up to 10 sec, depending on
pump type and fault. If the fault is recognised again during this process, the pump returns to fault status.
Table 1
• Double pump:
The relationships between possible faults and the reactions of light signals and
signal contacts depend on the following factors:
• Parametrisation of signal contacts in individual operation/individual fault sig-
nal or joint operation/collective fault signal (function see Table 2)
• Allocation of "Ext. Off" control inputs to master and slave
Installation and operating instructions Wilo-Protect-Modul C
Status Possible causes
off • No supply voltage.
• Control input "Ext. Off" opened.
• Fault is present and has not yet been
acknowledged.
flashing • DP communication fault (only with double
pump).
off • No motor stoppage.
on • Motor stoppage recognised.
• Mechanical blockage of pump
• Winding fault
flashing • Motor stoppage acknowledged, pump is in
control loop
off • No overheat.
on • Overheat recognised.
• Pump overload
• Winding fault
• Unacceptable combination of medium tem-
perature – ambient temperature
flashing • Overheat acknowledged, pump is in control
loop
open • No supply voltage.
• Control input "Ext. Off" opened.
• Fault is present and has not yet been
acknowledged.
closed • Pump functioning, no fault recognised.
open • Fault is present.
• Pump is still in control loop
closed • Fault-free operation.
off • No motor stoppage.
on • Motor stoppage recognised.
• Mechanical blockage of pump.
• Winding fault.
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English
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