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<strong>Grundfos</strong> E-<strong>pumps</strong><br />
3<br />
The functions of the two indicator lights and the signal relay are as shown in the following table:<br />
Fault<br />
(red)<br />
Indicator lights<br />
Operation<br />
(green)<br />
Fault/Alarm,<br />
Warning and<br />
Relubricate<br />
Signal relay activated during:<br />
Operating Ready Pump running<br />
Description<br />
E-<strong>pumps</strong><br />
Off Off The power supply has been switched off.<br />
C<br />
NO NC<br />
C<br />
NO NC<br />
C<br />
NO NC<br />
C<br />
NO NC<br />
Off Permanently on The pump is operating.<br />
C NO NC C NO NC C NO NC C NO NC<br />
Off<br />
Permanently on<br />
C NO NC C NO NC C NO NC C NO NC<br />
The pump has been stopped by the stop<br />
function.<br />
Off Flashing The pump has been set to stop.<br />
C<br />
NO NC<br />
C NO NC C NO NC C NO NC<br />
Permanently on<br />
Permanently on<br />
Off<br />
Permanently on<br />
C NO NC C NO NC<br />
C<br />
NO NC<br />
NO NC<br />
C NO NC C NO NC C NO NC C NO NC<br />
C<br />
The pump has stopped because of a<br />
"Fault"/"Alarm" or is running with a<br />
"Warning" or "Relubricate" indication.<br />
If the pump was stopped, restarting will be<br />
attempted (it may be necessary to restart<br />
the pump by resetting the "Fault"<br />
indication).<br />
If the cause is "External fault", the pump<br />
must be restarted manually by resetting the<br />
"Fault" indication.<br />
The pump is operating, but it has or has had<br />
a "Fault"/"Alarm" allowing the pump to<br />
continue operation or it is operating with a<br />
"Warning" or "Relubricate" indication.<br />
If the cause is "Sensor signal outside signal<br />
range", the pump will continue operating<br />
according to the 70% curve and the fault<br />
indication cannot be reset until the signal is<br />
inside the signal range.<br />
If the cause is "Setpoint signal outside<br />
signal range", the pump will continue<br />
operating according to the min. curve and<br />
the fault indication cannot be reset until the<br />
signal is inside the signal range.<br />
Permanently on<br />
Flashing<br />
C NO NC C NO NC C NO NC C NO NC<br />
The pump has been set to stop, but it has<br />
been stopped because of a "Fault".<br />
Resetting of fault indication<br />
A fault indication can be reset in one of the following<br />
ways:<br />
• Briefly press or on the pump. This will not<br />
change the setting of the pump.<br />
A fault indication cannot be reset by means of or<br />
if the buttons have been locked.<br />
• Switch off the power supply until the indicator lights<br />
are off.<br />
• Switch the external start/stop input off and then on<br />
again.<br />
• Use the R100. See section Fault indications,<br />
page 28.<br />
When the R100 communicates with the pump, the red<br />
indicator light will flash rapidly.<br />
41
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