Grundfos CUE User Manual

35
English (US)
11.7.16 Motor bearing monitoring (3.19)
The motor bearing monitoring function can be set to these values:
•Active
• Not active.
When the function is set to "Active", the CUE will give a warning
when the motor bearings are due to be relubricated or replaced.
Description
The motor bearing monitoring function is used to give an
indication when it is time to relubricate or replace the motor
bearings. See displays 2.10 and 2.11.
The warning indication and the estimated time take into account if
the pump has been running with reduced speed. The bearing
temperature is included in the calculation if temperature sensors
are installed and connected to an MCB 114 sensor input module.
11.7.17 Confirming relubrication/replacement of motor
bearings (3.20)
This function can be set to these values:
• Relubricated
•Replaced
• Nothing done.
When the motor bearings have been relubricated or replaced,
confirm this action in the above display by pressing [OK].
Relubricated
When the warning "Relubricate motor bearings" has been
confirmed,
• the counter is set to 0.
• the number of relubrications is increased by 1.
When the number of relubrications has reached the permissible
number, the warning "Replace motor bearings" appears in the
display.
Replaced
When the warning "Replace motor bearings" has been confirmed,
• the counter is set to 0.
• the number of relubrications is set to 0.
• the number of bearing changes is increased by 1.
11.7.18 Temperature sensor 1 (3.21)
This display is only shown if an MCB 114 sensor input module
has been installed.
Select the function of a Pt100/Pt1000 temperature sensor 1
connected to an MCB 114:
• D-end bearing
• ND-end bearing
• Other liq. temp. 1
• Other liq. temp. 2
• Motor winding
• Pumped liq. temp.
• Ambient temp.
• Not active.
11.7.19 Temperature sensor 2 (3.22)
This display is only shown if an MCB 114 sensor input module
has been installed.
Select the function of a Pt100/Pt1000 temperature sensor 2
connected to an MCB 114:
• D-end bearing
• ND-end bearing
• Other liq. temp. 1
• Other liq. temp. 2
• Motor winding
• Pumped liq. temp.
• Ambient temp.
• Not active.
11.7.20 Standstill heating (3.23)
The standstill heating function can be set to these values:
•Active
•Not active.
When the function is set to "Active" and the pump is stopped by a
stop command, a current will be applied to the motor windings.
The standstill heating function pre-heats the motor to avoid
condensation.
Note
Note
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
Note
Relubricated cannot be selected for a period of
time after confirming relubrication.

Grundfos CUE Specifications

General

Brand	Grundfos
Model	CUE
Category	Media Converter
Language	English