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On On
3. The pump is running at
minimum speed.
– The setpoint signal is
outside the set signal
range.
a) Set the pump to "open loop" operation, and connect 10 V supply to
the setpoint input.
Does the pump switch to maximum speed?
NO:
YES:
Proceed to point b).
The pump is OK.
b) Does the setpoint setting correspond to the setpoint type
installed?
(0-10 V, 0-20 mA, 4-20 mA)
NO:
YES:
Correct the setting using the R100.
Proceed to point c).
c) Is the voltage to the setpoint connection 10 VDC?
TM0
2
160
7
16
01
NO:
YES:
Replace the terminal box.
Proceed to point d).
d) Is the setpoint signal
– below 10 V (type 0-10 V sensor)?
– below 20 mA (type 0-20 mA sensor)?
– between 4 and 20 mA (type 4-20 mA sensor)?
NO:
YES:
Check for fault in the external setpoint signal.
Re-establish the correct setpoint signal, if necessary.
If the pump still does not run correctly, replace the
terminal box.
[To be continued on the next page]
Indicator lights
Condition/cause
Remedy
Green
Red
0-10V
+
-
0/4-20mA
10K
4: SETPOINT
5: +10V
6: GND
