Notes; References; Product Introduction; Product Description - Grundfos CUE Series Installation And Operating Instructions Manual

1.2 Notes

The symbols and notes below may appear in Grundfos
installation and operating instructions, safety instructions and
service instructions.
Observe these instructions for explosion-proof
products.
A blue or grey circle with a white graphical symbol
indicates that an action must be taken.
A red or grey circle with a diagonal bar, possibly with
a black graphical symbol, indicates that an action
must not be taken or must be stopped.
If these instructions are not observed, it may result in
malfunction or damage to the equipment.
Tips and advice that make the work easier.

1.3 References

Technical documentation for Grundfos CUE:
• The manual contains all information required for putting CUE
into operation.
• The data booklet contains all technical information about the
construction and applications of CUE.
• The service instructions contain all required instructions for
dismantling and repairing the frequency converter.
Technical documentation is available on Grundfos Product Center
at www.grundfos.com.
If you have any questions, please contact the nearest Grundfos
company or service workshop.

2. Product introduction

2.1 Product description

CUE is a series of external frequency converters especially
designed for pumps.
With the startup guide in CUE, the installer can quickly set central
parameters and put CUE into operation.
Connected to a sensor or an external control signal, CUE will
quickly adapt the pump speed to the actual demand.
The operating panel displays any alarms or warnings.
If the pump speed exceeds the rated speed, the
pump will be overloaded.

2.2 Intended use

CUE frequency converters can be used in both new and existing
installations. Local operation is performed via the operating panel
which has a graphic display showing the menu structure. The
menu structure uses the same system as Grundfos E-pumps.
Remote operation is performed via external signals, for instance
via digital inputs or GENIbus.

2.3 Applications

The CUE series and Grundfos standard pumps are a supplement
to the Grundfos E-pumps range with integrated frequency
converter.
A CUE solution offers the same E-pump functionality in these
cases:
• in mains voltage or power ranges not covered by the E-pump
range
• in applications where an integrated frequency converter is not
desirable or permissible.

2.4 Identification

2.4.1 Nameplate
CUE can be identified by means of the nameplate. An example is
shown below.
T/C: CUE202P1M2T5E20H1BXCXXXSXXXXAXBXCXXXXDX
Prod. no: 12345678 S/N: 123456G234
1.5 kW (400V)
IN: 3x380-500 V 50/60Hz 3.7A
OUT: 3x0-Vin 0-100Hz 4.1 A 2.8 kVA
CHASSIS/IP20 Tamb. 45C/122F
IIIIIIIIIIIBAR CODEIIIIIIIIIII
Listed 76X1 E134261 Ind. Contr. Eq.
See manual for prefuse
CAUTION:
SEE MANUAL / VOIR MANUEL
WARNING:
STORED CHARGE DO NOT TOUCH UNTIL
4 MIN AFTER DISCONNECTION
CHARGE RESIDUELLE, ATTENDRE
4 MIN APRES DECONNEXION
Fig. 1 Example of nameplate
Text Description
CUE (product name)
T/C:
202P1M2... (internal code)
Prod. no: Product number: 12345678
Serial number: 123456G234
S/N: The last three digits indicate the production
date: 23 is the week, and 4 is the year 2004.
1.5 kW (2 hp) Typical shaft power on the motor
Supply voltage, frequency and maximum
IN:
input current
Motor voltage, frequency and maximum
OUT: output current. The maximum output
frequency usually depends on the pump type.
CHASSIS/IP20 Enclosure class
Tamb. Maximum ambient temperature
2.4.2 Packaging label
CUE can also be identified by means of the label on the
packaging.
MADE IN DENMARK
3