Grundfos NBE Series, Installation And Operating Instructions Manual

Page: 6 / 37

6
Original installation and operating instructions.
CONTENTS
Page
1. Symbols used in this document 7
2. General information 7
3. General description 7
3.1 Settings 7
3.2 Twin-head pumps 7
4. Mechanical installation 7
4.1 Motor cooling 7
4.2 Outdoor installation 7
5. Electrical connection 7
5.1 Electrical connection – single-phase pumps 8
5.1.1 Preparation 8
5.1.2 Protection against electric shock – indirect contact 8
5.1.3 Backup fuses 8
5.1.4 Additional protection 8
5.1.5 Motor protection 8
5.1.6 Protection against mains voltage transients 8
5.1.7 Supply voltage and mains 8
5.1.8 Start/stop of pump 8
5.1.9 Connections 9
5.2 Electrical connection – three-phase pumps,
0.75-7.5 kW
10
5.2.1 Preparation 10
5.2.2 Protection against electric shock – indirect contact 10
5.2.3 Backup fuses 10
5.2.4 Additional protection 10
5.2.5 Motor protection 10
5.2.6 Protection against mains voltage transients 10
5.2.7 Supply voltage and mains 10
5.2.8 Start/stop of pump 11
5.2.9 Connections 11
5.3 Electrical connection – three-phase pumps,
11-22 kW
12
5.3.1 Preparation 12
5.3.2 Protection against electric shock - indirect contact 12
5.3.3 Backup fuses 13
5.3.4 Additional protection 13
5.3.5 Motor protection 13
5.3.6 Protection against mains voltage transients 13
5.3.7 Supply voltage and mains 13
5.3.8 Start/stop of pump 13
5.3.9 Connections 13
5.4 Signal cables 15
5.5 Bus connection cable 15
5.5.1 New installations 15
5.5.2 Replacing an existing pump 15
5.6 Communication cable for TPED pumps 15
5.6.1 Connection of two sensors 15
5.6.2 Elimination of "alternating operation" and "standby
operation"
16
5.6.3 Elimination of TPED function 16
6. Modes 16
6.1 Overview of modes 16
6.2 Operating mode 16
6.2.1 Additional operating modes – TPED pumps 16
6.3 Control mode 16
6.4 Factory setting 17
7. Setting by means of control panel 17
7.1 Setpoint setting 17
7.1.1 Pump in control mode controlled
(differential pressure control)
17
7.1.2 Pump in control mode uncontrolled 17
7.2 Setting to max. curve duty 17
7.3 Setting to min. curve duty 18
7.4 Start/stop of pump 18
8. Setting by means of R100 18
8.1 Menu OPERATION 20
8.1.1 Setpoint 20
8.1.2 Operating mode 20
8.1.3 Fault indications 20
8.1.4 Fault log 21
8.2 Menu STATUS 21
8.2.1 Actual setpoint 21
8.2.2 Operating mode 21
8.2.3 Actual value 21
8.2.4 Speed 21
8.2.5 Power input and power consumption 22
8.2.6 Operating hours 22
8.2.7 Lubrication status of motor bearings
only 11-22 kW)
22
8.2.8 Time till relubrication of motor bearings
(only 11-22 kW)
22
8.2.9 Time till replacement of motor bearings
(only 11-22 kW)
22
8.3 Menu INSTALLATION 22
8.3.1 Control mode 22
8.3.2 Controller 22
8.3.3 External setpoint 23
8.3.4 Signal relay 23
8.3.5 Buttons on pump 24
8.3.6 Pump number 24
8.3.7 Digital input 24
8.3.8 Sensor 24
8.3.9 Operating range 24
8.3.10 Motor bearing monitoring (only 11-22 kW) 24
8.3.11 Confirming relubrication/replacement of
motor bearings (only 11-22 kW) 25
8.3.12 Standstill heating (only 11-22 kW) 25
9. Setting by means of PC Tool E-products 25
10. Priority of settings 25
11. External forced-control signals 26
11.1 Start/stop input 26
11.2 Digital input 26
12. External setpoint signal 26
13. Bus signal 27
14. Other bus standards 27
15. Indicator lights and signal relay 27
16. Insulation resistance 28
17. Emergency operation (only 11-22 kW) 29
18. Maintenance and service 30
18.1 Cleaning of the motor 30
18.2 Relubrication of motor bearings 30
18.3 Replacement of motor bearings 30
18.4 Replacement of varistor (only 11-22 kW) 30
18.5 Service parts and service kits 30
19. Technical data – single-phase pumps 30
19.1 Supply voltage 30
19.2 Overload protection 30
19.3 Leakage current 30
19.4 Inputs/outputs 30
20. Technical data – three-phase pumps, 0.75-7.5 kW 31
20.1 Supply voltage 31
20.2 Overload protection 31
20.3 Leakage current 31
20.4 Inputs/output 31
21. Technical data – three-phase pumps, 11-22 kW 31
21.1 Supply voltage 31
21.2 Overload protection 31
21.3 Leakage current 31
21.4 Inputs/output 32
22. Other technical data 32
23. Disposal 34
Warning
Prior to installation, read these installation and
operating instructions. Installation and operation
must comply with local regulations and accepted
codes of good practice.