Menu Installation - Grundfos CRIE Installation And Operating Instrictions
Grundfos e-pumps with mle frequency-controlled, asynchronous
motors
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Also See for CRIE:
- Installation and operating instructions manual (78 pages) ,
- Instructions manual (560 pages) ,
- Safety instructions and other important information (43 pages)
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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)
relubrication is confirmed, the figure in the above display will be
increased by one.
10.2.8 Time till relubrication of motor bearings
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
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
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!
16
10.3 Menu INSTALLATION
10.3.1 Control mode
Without sensor
(uncontrolled)
Select one of the following
control modes (see fig. 18):
on page 22. When
•
•
10.3.2 Controller
E-pumps have a factory default setting of gain (K
time (T
setting, the gain and the integral time can be changed in the
display below.
•
•
•
on page
16
will be
Controlled
Uncontrolled.
If the pump is connected to a bus, the control
Note
Note
mode cannot be selected via the R100. See
section
15. Bus
signal.
). However, if the factory setting is not the optimum
i
The gain (K
) can be set within the range from 0.1 to 20.
p
The integral time (Ti) 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 (Kp)
must be set within the range from -0.1 to -20.
With pressure sensor
(controlled)
Select one of the following
control modes (see fig. 18):
•
Controlled
•
Uncontrolled.
) and integral
p
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