External Fault Indications; External Analog 0-10 V Controller - Grundfos UPE 2000 Series Montage- Und Betriebsanleitung

6.8 External fault indications

The pump incorporates a fault signal output for a po-
tential-free fault signal via terminals 2 and 3.
The signal output of both the master pump and the
slave pump can be used.
• The function of the master pump signal output ap-
plies to both the master pump and the slave pump.
• The function of the slave pump signal output ap-
plies only to the slave pump.
Functions of signal output:
Signal output Description
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 be-
cause of a fault. Restarting will
be attempted. (It may be neces-
sary to restart the pump manu-
1 2 3
NC NO C
ally by resetting the fault indica-
tion.)
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
NC NO C
signal, the pump will continue
operating according to the max.
curve.
The pump has been set to stop,
but it has been stopped be-
1 2 3
cause of a fault.
NC NO C
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.
12

6.9 External analog 0-10 V controller

The pump has an input for an external 0-10 VDC an-
alog signal transmitter (terminals 11 and 12 in mas-
ter pump). Via this input, the pump can be controlled
by an external controller if the pump has been set to
one of the following control modes:
• Constant curve.
The external analog signal will set the pump curve
within the range from the min. curve to the con-
stant curve selected according to the characteris-
tic in fig. 12.
• Pressure control.
The external analog signal will control the setpoint
for the pump head between the setpoint corre-
sponding to the min. curve and the setpoint se-
lected according to the characteristic in fig. 12.
At an input voltage lower than 0.5 V, the pump will
operate according to the min. curve. The setpoint
cannot be changed.
The setpoint can only be changed when the input
voltage is higher than 0.5 V.
Fig. 12
Head set/constant curve
Max. head/constant curve
H m
Min. curve
0 1 2 3 4 5 6
Note:
• The max. curve input, terminals 7 and 10, must be
open.
• The min. curve input, terminals 7 and 9, must be
closed.
7 8 9 10 U V