User Guide

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17. Indicator lights and fault signal relay
The operating condition of the pump is indicated by the green and
red indicator lights on the pump control panel, fig. 32.
Fig. 32 Indicator lights on the pump control panel
The pump incorporates a fault signal relay with a potential-free
changeover contact for external fault indication.
The functions of the two indicator lights and the fault signal relay
are as shown in the following table:
A fault indication can be reset in one of the following ways:
• By briefly pressing the button or on the pump. This will
not change the setting of the pump.
A fault indication cannot be reset by means of or if the
buttons have been locked.
• By switching off the electricity supply until the indicator lights
are off.
• By switching the external start/stop input off/on.
• By means of the R100, see section 5.1.3 Fault indications.
When the R100 communicates with the pump, the red indicator
light will flash rapidly.
18. Megging
Note: Megging of an installation incorporating E-pumps is not
allowed, as the built-in electronics may be damaged.
TM00 7600 0304
Green
Red
Indicator lights
Fault signal relay Description
Fault
(red)
Operation
(green)
Off Off The electricity supply has been switched off.
Off Permanently on The pump is operating.
Off Flashing The pump has been set to stop.
Permanently on Off
The pump has stopped because of a fault. Restarting will be
attempted (it may be necessary to restart the pump by resetting
the fault indication).
Permanently on Permanently on
The pump is operating, but it has been stopped because of a fault.
If the cause is “sensor signal outside signal range”, the pump will
continue operating according to the max. curve and the fault
indication cannot be reset until the signal is inside the signal
range.
If the cause is “setpoint signal outside signal range”, the pump will
continue operating according to the min. curve and the fault
indication cannot be reset until the signal is inside the signal
range.
Permanently on Flashing
The pump has been set to stop, but it has been stopped because
of a fault.
NCNO
C
NCNO
C
NCNO
C
C
NO NC
C
NO NC
C
NO NC
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