Setting By Means Of Pc Tool E-Products; Priority Of Settings - Grundfos CRE Montage- Und Betriebsanleitung

9.3.13 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
9.2.7 Lubrication status of motor bearings (only 11-22
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.
9.3.14 Confirming relubrication/replacement of motor
bearings (only three-phase pumps)
This function can be set to these values:
• Relubricated (only 11-22 kW)
• Replaced
• Nothing done.
When the bearing monitoring function is Active, the controller will
give a warning indication when the motor bearings are due to be
relubricated or replaced. See section
When the motor bearings have been relubricated or replaced,
confirm this action in the above display by pressing "OK".
Relubricated cannot be selected for a period of time
Note
after confirming relubrication.
9.3.15 Standstill heating (only three-phase pumps)
The standstill heating function can be set to these values:
• Active
• Not active.
When the function is set to Active, an AC voltage will be applied
to the motor windings. The applied voltage will ensure that
sufficient heat is generated to avoid condensation in the motor.

10. Setting by means of PC Tool E-products

Special setup requirements differing from the settings available
via the R100 require the use of Grundfos PC Tool E-products.
This again requires the assistance of a Grundfos service
technician or engineer. Contact your local Grundfos company for
more information.
kW).
9.1.3 Fault indications.

11. Priority of settings

The priority of settings depends on two factors:
1. control source
2. settings.
1. Control source
Control panel
R100
External signals
(external setpoint signal, digital inputs, etc.).
Communication from another control system via
bus
2. Settings
• Operating mode Stop
• Operating mode Max. (Max. curve)
• Operating mode Min. (Min. curve)
• Setpoint setting.
An E-pump can be controlled by different control sources at the
same time, and each of these sources can be set differently.
Consequently, it is necessary to set an order of priority of the
control sources and the settings.
If two or more settings are activated at the same
Note time, the pump will operate according to the function
with the highest priority.
Priority of settings without bus communication
Priority Control panel or R100
1 Stop
2 Max.
3
4
5 Min.
6 Setpoint setting
Example: If the E-pump has been set to operating mode Max.
(Max. frequency) via an external signal, such as digital input, the
control panel or R100 can only set the E-pump to operating mode
Stop.
Priority of settings with bus communication
Control panel
Priority
or R100
1 Stop
2 Max.
3
4
5
6
Example: If the E-pump is operating according to a setpoint set
via bus communication, the control panel or R100 can set the
E-pump to operating mode Stop or Max., and the external signal
can only set the E-pump to operating mode Stop.
External signals
Stop
Max.
Min.
Setpoint setting
External Bus
signals communication
Stop Stop
Max.
Min.
Setpoint setting
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