About The Service Instructions; Waiting Time During Power Off - Grundfos CUE Series Service Instructions Manual

1.3 About the service instructions

These service instructions describe the recommended procedure
for fault finding of CUE and its interface.
The instructions are aimed at Grundfos service technicians that
are trained as a Grundfos Service Electronic Expert (GESE).
These service technicians have received electrotechnical
training.
Contact your local Grundfos service centre for more information.
Usage of these instructions presuppose knowledge of these
documents:
1. installation and operating instructions of CUE
2. installation and operating instructions of the system which
CUE is part of or controls.
These instructions only deal with CUE and its interface. If the
application includes other Grundfos products or other systems,
refer to the instructions for these products.
If the fault cannot be remedied by means of these instructions, or
you require technical assistance, contact Grundfos.
If it has been proven that the fault is in CUE, contact Grundfos.
Spare parts can be found in Grundfos Product Center, GPC or in
GSK, Grundfos Service Knowledge.
You must state these pieces of information when you contact
Grundfos to get help for fault finding:
• nameplate data of the pump or system which CUE controls or
is part of
• nameplate data of CUE
• status of the indicator lights on the operating panel
• any alarm or warning text and the code number on the display.
These instructions are made public and maintained in GSK.

1.4 Waiting time during power off

Voltage
4 minutes
0.75 - 3.7 kW
200-240 V
(1-5 hp)
0.55 - 7.5 kW
380-500 V
(0.75 - 10 hp)
0.75 - 7.5 kW
525-600 V
(1-10 hp)
525-690 V
Only wait for a shorter period of time if stated on the nameplate of
the product in question.
Min. waiting time
15 minutes 20 minutes
5.5 - 45 kW
(7.5 - 60 hp)
11-90 kW 110-250 kW
(15-125 hp) (150-350 hp)
11-250 kW
(15-350 hp)
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