5
CONTENTS
Page
1. Symbols used in this document 5
2. Introduction 5
2.1 General description 5
2.2 Applications 5
2.3 References 6
3. Safety and warnings 6
3.1 Warning 6
3.2 Safety regulations 6
3.3 Installation requirements 6
3.4 Reduced performance under certain conditions 6
4. Identification 7
4.1 Nameplate 7
4.2 Packaging label 7
5. Mechanical installation 7
5.1 Reception and storage 7
5.2 Transportation and unpacking 7
5.3 Space requirements and air circulation 7
5.4 Mounting 8
6. Electrical connection 8
6.1 Electrical protection 8
6.2 Mains and motor connection 8
6.3 Connecting the signal terminals 13
6.4 Connecting the signal relays 15
6.5 Connecting the MCB 114 sensor input module 16
6.6 EMC-correct installation 17
6.7 RFI filters 17
6.8 Output filters 17
7. Operating modes 18
8. Control modes 18
8.1 Uncontrolled operation (open loop) 18
8.2 Controlled operation (closed loop) 19
9. Menu overview 20
10. Setting by means of the control panel 23
10.1 Control panel 23
10.2 Back to factory setting 23
10.3 Start-up guide 24
10.4 Menu GENERAL 28
10.5 Menu OPERATION 28
10.6 Menu STATUS 29
10.7 Menu INSTALLATION 31
11. Setting by means of PC Tool E-products 38
12. Priority of settings 39
12.1 Control without bus signal, local operating mode 39
12.2 Control with bus signal, remote-controlled operating
mode 39
13. External control signals 39
13.1 Digital inputs 39
13.2 External setpoint 39
13.3 GENIbus signal 40
13.4 Other bus standards 40
14. Maintenance and service 40
14.1 Cleaning the CUE 40
14.2 Service parts and service kits 40
15. Troubleshooting 41
15.1 Warning and alarm list 41
15.2 Resetting of alarms 41
15.3 Indicator lights 41
15.4 Signal relays 41
16. Technical data 42
16.1 Enclosure 42
16.2 Main dimensions and weight 43
16.3 Surroundings 43
16.4 Terminal tightening torques 43
16.5 Cable length 44
16.6 Fuses and cable gauge size 44
16.7 Inputs and outputs 46
16.8 Sound pressure level 46
17. Disposal 46
1. Symbols used in this document
2. Introduction
This manual introduces all aspects of your Grundfos CUE
variable frequency drive in the output current range of 1.8 to
177 A.
Always keep this manual close to the CUE.
2.1 General description
The CUE is a series of external variable frequency drives
especially designed for pumps.
Thanks to the start-up guide in the CUE, the installer can quickly
set central parameters and put the CUE into operation.
Connected to a sensor or an external control signal, the CUE will
quickly adapt the pump speed to the actual demand.
2.2 Applications
The CUE series and Grundfos standard pumps are a supplement
to the Grundfos E-pumps range with integrated variable
frequency drive.
A CUE solution offers the same E-pump functionality
• in the supply voltage or power ranges not covered by the
E-pump range.
• in applications where an integrated variable frequency drive is
not desirable or permissible.
Warning
Prior to installation, read these installation and
operating instructions. Installation and operation
must comply with local regulations and accepted
codes of good practice.
Warning
If these safety instructions are not observed,
it may result in personal injury!
If these safety instructions are not observed,
it may result in malfunction or damage to the
equipment!
Notes or instructions that make the job easier
and ensure safe operation.
Grundfos.bk Page 5 Friday, July 30, 2010 10:10 PM
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