English (US)
18
10.2.7 Lubrication status of motor bearings (only 15 - 30 Hp)
This display shows how many times the motor bearings have
been relubricated and when to replace the motor bearings.
When the motor bearings have been relubricated, confirm this
action in the INSTALLATION menu.
See section
10.3.14 Confirming relubrication/replacement of
motor bearings (only three-phase pumps)
on page 23. When
relubrication is confirmed, the figure in the above display will be
increased by one.
10.2.8 Time till relubrication of motor bearings
(only 15 - 30 Hp)
This display shows when to relubricate the motor bearings.
The controller monitors the operating pattern of the pump and
calculates the period between bearing relubrications. If the
operating pattern changes, the calculated time till relubrication
may change as well.
The displayable values are these:
•
in 2 years
•
in 1 year
•
in 6 months
•
in 3 months
•
in 1 month
•
in 1 week
•
Now!
10.2.9 Time till replacement of motor bearings
(only three-phase pumps)
When the motor bearings have been relubricated a prescribed
number of times stored in the controller, the display in
section
10.2.8 Time till relubrication of motor bearings (only 15 -
30 Hp)
on page 18 will be replaced by the display below.
This display shows when to replace the motor bearings.
The controller monitors the operating pattern of the pump and
calculates the period between bearing replacements.
The displayable values are these:
•
in 2 years
•
in 1 year
•
in 6 months
•
in 3 months
•
in 1 month
•
in 1 week
•
Now!
10.3 Menu INSTALLATION
10.3.1 Control mode
10.3.2 Controller
E-pumps have a factory default setting of gain (K
p
) and integral
time (T
i
). However, if the factory setting is not the optimum
setting, the gain and the integral time can be changed in the
display below.
• The gain (K
p
) can be set within the range from
0.1
to
20
.
• The integral time (T
i
) can be set within the range from
0.1
to
3600
s
. If
3600
s
is selected, the controller will function as a P
controller.
• Furthermore, it is possible to set the controller to inverse
control, meaning that if the setpoint is increased, the speed
will be reduced. In the case of inverse control, the gain (K
p
)
must be set within the range from -
0
.
1
to -
20
.
The table below shows the suggested controller settings:
Without sensor
(uncontrolled)
With pressure sensor
(controlled)
Select one of the following
control modes (see fig. 20):
•
Controlled
•
Uncontrolled
.
Select one of the following
control modes (see fig. 20):
•
Controlled
•
Uncontrolled
.
1RWH
1RWH
If the pump is connected to a bus, the control
mode cannot be selected via the R100.
See section 15. Bus signal.
System/application
K
p
T
i
Heating
systems
Cooling
system
0.5
0.5
0.5
L
1)
< 16.4 ft:
0.5
L > 16.4 ft: 3
L > 32.8 ft: 5
0.5
0.5
'
p
L [ft]
'
p
p
DBP-1 - GRUNDFOS PUMP CRE - 99392005
Содержание SPKE Series
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Страница 36: ...Appendix 36 DBP 1 GRUNDFOS PUMP CRE 99392005...
