Grundfos CUE User Manual

English (US)
38
16. Troubleshooting
16.1 Warning and alarm list
1)
In case of an alarm, the CUE will change the operating mode
depending on the pump type.
2)
AMA, Automatic Motor Adaptation. Not active in the present
software.
3)
Warning is reset in display 3.20.
16.2 Resetting of alarms
In case of a fault or malfunction of the CUE, check the alarm list
in the "OPERATION" menu. The latest five alarms and latest five
warnings can be found in the log menus.
Contact a Grundfos technician if an alarm occurs repeatedly.
16.2.1 Warning
The CUE will continue the operation as long as the warning is
active. The warning remains active until the cause no longer
exists. Some warnings may switch to alarm condition.
16.2.2 Alarm
In case of an alarm, the CUE will stop the pump or change the
operating mode depending on the alarm type and pump type.
See section 16.1 Warning and alarm list.
Pump operation will be resumed when the cause of the alarm has
been remedied and the alarm has been reset.
Resetting an alarm manually
• Press [OK] in the alarm display.
• Press [On/Off] twice.
• Activate a digital input DI 2-DI 4 set to "Alarm reset" or the
digital input DI 1 (start/stop).
If it is not possible to reset an alarm, the reason may be that the
fault has not been remedied, or that the alarm has been locked.
16.2.3 Locked alarm
In case of a locked alarm, the CUE will stop the pump and
become locked. Pump operation cannot be resumed until the
cause of the locked alarm has been remedied and the alarm has
been reset.
Resetting a locked alarm
• Switch off the power supply to the CUE for about 30 seconds.
Switch on the power supply, and press OK in the alarm display
to reset the alarm.
16.3 Indicator lights
The table shows the function of the indicator lights.
16.4 Signal relays
The table shows the function of the signal relays.
See also fig. 29.
Code and display text
Status
Operating
mode
Resetting
Warning Alarm Locked alarm
1
Too high leakage
current
● Stop Man.
2 Mains phase failure
● Stop Aut.
3 External fault
● Stop Man.
16 Other fault
● Stop Aut.
● Stop Man.
30 Replace motor bearings ●
-Man.
3)
32 Overvoltage
●
-Aut.
● Stop Aut.
40 Undervoltage
●
-Aut.
● Stop Aut.
48 Overload
● Stop Aut.
● Stop Man.
49 Overload
● Stop Aut.
55 Overload
●
-Aut.
● Stop Aut.
57 Dry running
● Stop Aut.
64
Too high CUE
temperature
● Stop Aut.
70
Too high motor
temperature
● Stop Aut.
77
Communication fault,
duty/standby
●
-Aut.
89 Sensor 1 outside range
●
1)
Aut.
91
Temperature sensor 1
outside range
●
-Aut.
93 Sensor 2 outside range ●
-Aut.
96
Setpoint signal outside
range
●
1)
Aut.
148
Too high bearing
temperature
●
-Aut.
● Stop Aut.
149
Too high bearing
temperature
●
-Aut.
● Stop Aut.
155 Inrush fault
● Stop Aut.
175
Temperature sensor 2
outside range
●
-Aut.
240
Relubricate motor
bearings
●
-Man.
3)
241 Motor phase failure
●
-Aut.
● Stop Aut.
242 AMA did not succeed
2)
● -Man.
Indicator
light
Function
On (green)
The pump is running or has been stopped by a
stop function.
If flashing, the pump has been stopped by the
user (CUE menu), external start/stop or bus.
Off (orange)
The pump has been stopped with the on/off
button.
Alarm (red) Indicates an alarm or a warning.
Type Function
Relay 1
• Ready
•Alarm
•Operation
Pump running
Warning
Relubricate
Relay 2
• Ready
•Alarm
•Operation
Pump running
Warning
Relubricate

Grundfos CUE Specifications

General

Brand	Grundfos
Model	CUE
Category	Media Converter
Language	English