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Off
On
The pump has stopped due to a fault
The pump has been stopped
due to one of the following
causes:
See the fault indication on the R100 or
PC Tool E-products.
1. The pump is blocked or
overloaded.
Remove the blockage, or reduce the load.
2. The ambient temperature
is too high, or the cooling
is insufficient.
Re-establish sufficient cooling.
3. Power supply fault:
– undervoltage
– overvoltage
– phase failure
– mains supply failure.
Check that the supply voltage is within the stated voltage range.
If not, re-establish correct power supply.
4. External fault.
a) Has the R100 been set to external fault?
NO:
Correct the setting using the R100.
YES:
Proceed to point b).
b) Can 5 VDC be measured across terminals 1-9?
TTM
02
16
05
06
01
NO:
Contact between terminals 1 and 9 is closed.
Seek the cause of fault in external signal transmitter.
YES:
Contact between terminals 1 and 9 is open.
The E-pump is OK. Proceed to the next fault possibility.
5. Other faults:
– wrong terminal box
– wrong configuration
– fatal fault.
• Replace the terminal box.
• Reconfigure the terminal box.
• Replace the terminal box.
Flashing,
1 Hz
Off
Normal operational stop
The pump has been stopped
• with the
button
• with the R100
• using the Grundfos GENIbus
• by the motor start/stop function. (Input on terminal 2-3 is open).
Flashing,
1 Hz
On
Normal operational stop + indication of previous fault
The pump has been stopped
• with the
button
• with the R100
• using the Grundfos GENIbus
• by the motor start/stop function, but was previously stopped
due to a fault which has now disappeared.
Flashing,
5 Hz
On
The pump has been stopped due to a fault in the product
Pump is not running and
• communication with the
R100 is not possible.
• no reaction when you
press
or
.
• fatal internal
communication fault in the
pump.
Try resetting the fault by
• disconnecting the power supply.
• waiting until all diodes are off.
• re-establishing the power supply.
If this does not remedy the fault, the terminal box is defective. Replace
the terminal box.
Indicator lights
Condition/cause
Remedy
Green
Red
9: GND
1: DIGITAL INPUT
0/1
