Grundfos TPE Betriebshandbuch Seite 26

8.3.5 Buttons on pump
The operating buttons and
to these values:
• Active
• Not active.
When set to Not active (locked), the buttons do not function.
Set the buttons to Not active if the pump should be controlled via
an external control system.
8.3.6 Pump number
A number between 1 and 64 can be allocated to the pump. In the
case of bus communication, a number must be allocated to each
pump.
8.3.7 Digital input
The digital input of the pump (terminal 1, fig. 4,
set to different functions.
Select one of the following functions:
• Min. (min. curve)
• Max. (max. curve).
The selected function is activated by closing the contact between
terminals 1 and 9. See figs 4, 8
See also section 11.2 Digital input.
Min.:
When the input is activated, the pump will operate according to
the min. curve.
Max.:
When the input is activated, the pump will operate according to
the max. curve.
8.3.8 Sensor
The setting of the sensor is only relevant in the case of controlled
operation.
Select among the following values:
• Sensor output signal
0-10 V
0-20 mA
4-20 mA
• Unit of measurement of sensor:
bar, mbar, m, kPa, psi, ft, m³/h, m³/s, l/s, gpm, °C, °F, %
• Sensor measuring range.
26
ГК Водная техника info@water-technics.ru (495) 771 72 72 www.water-technics.ru
Интернет-магазин info@wtpump.ru (499) 937 50 61 (800) 505 78 67 www.wtpump.ru
on the control panel can be set
8 or 14) can be
and 14.
8.3.9 Operating range
How to set the operating range:
• Set the min. curve within the range from max. curve to 12 % of
maximum performance. The pump has been factory-set to
24 % of maximum performance.
• Set the max. curve within the range from maximum
performance (100 %) to min. curve.
The area between the min. and max. curves is the operating
range.
H
100 %
Max. curve
Min. curve
12 %
Fig. 33 Setting of the min. and max. curves in % of maximum
performance
8.3.10 Motor bearing monitoring (only three-phase pumps)
The motor bearing monitoring function can be set to these values:
• Active
• Not active.
When the function is set to Active, a counter in the controller will
start counting the mileage of the bearings.
See section 8.2.7 Lubrication status of motor bearings
(only 11-22 kW).
The counter will continue counting even if the
function is switched to Not active, but a warning
will not be given when it is time for relubrication.
Note
When the function is switched to Active again,
the accumulated mileage will again be used to
calculate the relubrication time.
Q