17
10. Indicator lights and signal relay
The operating condition of the pump is indicated by the green and
red indicator lights on the pump control panel, fig. 20.
Fig. 20
Indicator lights on control panel
The pump incorporates an output for a potential-free signal via an
internal relay.
The signal output can be set to fault, operating or ready indication
by means of the R100, see section
5.3.4 Selection of fault, oper-
The functions of the two indicator lights and the 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
When the R100 communicates with the pump, the red indicator
light will flash rapidly.
11. Megging
Note:
Megging of an installation incorporating E-pumps is not al-
lowed, as the built-in electronics may be damaged.
T
M
00
76
00
03
04
Green
Red
Indicator lights
Signal relay activated during:
Description
Fault
(red)
Opera-
tion
(green)
Fault
Operation
Ready
Off
Off
The electricity supply has been switched off.
Off
Perman-
ently on
The pump is operating.
Off
Flashing
The pump has been set to stop.
Perman-
ently on
Off
The pump has stopped because of a fault. Restarting will be
attempted (it may be necessary to restart the pump by reset-
ting the fault indication).
Perman-
ently on
Perman-
ently 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.
Perman-
ently on
Flashing
The pump has been set to stop, but it has been stopped be-
cause of a fault.
NC
NO
C
NC
NO
C
NC
NO
C
NC
NO
C
C
NO NC
C
NO NC
NC
NO
C
NC
NO
C
C
NO NC
C
NO NC
NC
NO
C
NC
NO
C
C
NO NC
C
NO NC
C
NO NC
C
NO NC
NC
NO
C
C
NO NC
