Indicator Lights; External Fault Indication - Grundfos UPE 2000 Series Montage- Und Betriebsanleitung

6.6 Indicator lights

The two indicator lights are used for fault and operat-
ing indication.
For position on pump, see fig. 11, section 7.2 Control
panel .
Note: When the R100 remote control communicates
with the pump, the red indicator light will flash rap-
idly.
Functions of indicator lights:
Indicator lights
Fault Opera-
tion
(red) (green)
The electricity supply has
Off Off
been switched off.
Perma-
Off nently The pump is operating.
on
The pump has been set to
Off Flashing
stop.
The pump has stopped
because of a fault. Re-
Perma- starting will be attempted.
nently Off (It may be necessary to
on restart the pump manually
by resetting the fault indi-
cation.)
The pump is operating,
but it has been stopped
because of a fault.
Perma- Perma- Note: If there is no differ-
nently nently ential pressure or temper-
on on ature sensor signal, the
pump will continue oper-
ating according to the
max. curve.
The pump has been set to
Perma-
stop, but it has been
nently Flashing
stopped because of a
on
fault.
See also section 8. Fault finding chart .

6.7 External fault indication

The pump incorporates a fault signal output for a po-
tential-free fault signal via terminals 2 and 3.
Functions of signal output:
Description
The fault signal output is activated when the pump
registers a fault. The fault signal relay is activated to-
gether with the red indicator light on the pump.
Resetting of fault indications:
A fault indication can be reset in one of the following
ways:
• Briefly press "+" or "–" on the pump. This will not
influence the pump performance set.
• Briefly switch off the electricity supply to the
pump.
• By means of the R100, see section 7.3 R100.
The fault indication cannot be reset until the cause of
the fault has disappeared.
Signal
Description
output
The electricity supply has been
switched off.
1 2 3
NC NO C
The pump is operating.
1 2 3
NC NO C
The pump has been set to stop.
1 2 3
NC NO C
The pump has stopped because
of a fault. Restarting will be at-
tempted. (It may be necessary to
1 2 3
restart the pump manually by re-
NC NO C
setting the fault indication.)
The pump is operating, but it has
been stopped because of a fault.
Note: If there is no differential
pressure or temperature sensor
1 2 3
signal, the pump will continue op-
NC NO C
erating according to the max.
curve.
The pump has been set to stop,
but it has been stopped because
1 2 3
of a fault.
NC NO C
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