Grundfos NBE, Инструкция по установке и эксплуатации

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6
CONTENTS
Page
1. General description 6
2. Installation 6
2.1 Motor cooling 6
2.2 Outdoor installation 6
2.3 Electrical connection 7
2.3.1 Mains switch 7
2.3.2 Protection against electric shock - indirect contact 7
2.3.3 Additional protection 7
2.3.4 Motor protection 7
2.3.5 Protection against mains voltage transients 7
2.3.6 Supply voltage 7
2.3.7 Start/stop of pump 7
2.4 Other connections 8
2.5 Signal cables 8
2.6 Bus connection cable 8
2.6.1 New installations 8
2.6.2 Replacing an existing pump 8
3. Setting the pump 9
3.1 Factory setting 9
4. Setting by means of control panel 9
4.1 Setpoint setting 9
4.2 Pump in controlled-operation mode
(differential pressure control)
9
4.3 Pump in uncontrolled-operation mode 9
4.4 Setting to max. curve duty 10
4.5 Setting to min. curve duty 10
4.6 Start/stop of pump 10
5. Setting by means of R100 11
5.1 Menu OPERATION 12
5.1.1 Setpoint setting 12
5.1.2 Setting of operating mode 12
5.1.3 Fault indications 12
5.1.4 Alarm log 12
5.2 Menu STATUS 12
5.2.1 Display of actual setpoint 12
5.2.2 Display of operating mode 12
5.2.3 Display of actual value 12
5.2.4 Display of actual speed 13
5.2.5 Display of input power and power consumption 13
5.2.6 Display of operating hours 13
5.3 Menu INSTALLATION 13
5.3.1 Selection of control mode 13
5.3.2 Setting of controller 13
5.3.3 Selection of external setpoint signal 14
5.3.4 Selection of fault, operating or ready signal relay 14
5.3.5 Blocking of the buttons on the pump 14
5.3.6 Allocation of pump number 14
5.3.7 Selection of function for digital input 14
5.3.8 Setting of sensor 14
5.3.9 Setting of min. and max. curves 14
6. External forced-control signals 15
6.1 Start/stop input 15
6.2 Digital input 15
7. External setpoint signal 15
8. Bus signal 15
9. Priority of settings 16
10. Indicator lights and signal relay 17
11. Megging 17
12. Technical data 18
12.1 Supply voltage 18
12.2 Leakage current 18
12.3 Inputs/output 18
12.4 Other technical data 18
13. Re-lubrication of motor motor bearings 18
14. Disposal 18
Before beginning installation procedures, these in-
stallation and operating instructions should be stud-
ied carefully.
Furthermore, the enclosed installa-
tion and operating instructions for the standard
pump should be studied carefully.
The installation
and operation should also be in accordance with lo-
cal regulations and accepted codes of good practice.
1. General description
Grundfos E-pumps are pumps fitted with frequency-controlled
standard motors for three-phase mains connection.
The pumps have a built-in PI controller and can be connected to
an external sensor enabling control of for instance pressure, dif-
ferential pressure, temperature, differential temperature or flow in
the system in which the pumps are installed. The pumps can be
set to uncontrolled operation, i.e. the pump performance can be
set according to the demand.
The pumps are typically used as circulator pumps in large heating
or cooling water systems with variable demands.
The desired value (setpoint), e.g. the desired differential pressure
if a differential pressure sensor has been installed, can be set di-
rectly on the pump control panel, via an input for external setpoint
signal or by means of the Grundfos wireless remote control R100.
All other settings are made by means of the R100.
Important parameters such as actual value of control parameter,
power consumption, etc. can be read via the R100.
The pump incorporates
• inputs for external potential-free contacts for start/stop and
digital function.
The digital function enables external setting of max. curve or
min. curve.
• an output for a potential-free fault, operating or ready signal.
• an input for bus communication.
Via the bus communication input, the pump can be controlled
and monitored by a building management system or another
external control system.
2. Installation
2.1 Motor cooling
To ensure sufficient cooling of motor and electronics, the follow-
ing must be observed:
• Place the pump in such a way that sufficient cooling is en-
sured.
• The temperature of the cooling air must not exceed 40
°
C.
• Cooling fins and fan blades must be kept clean.
2.2 Outdoor installation
When installed outdoors, the pump must be provided with a suit-
able cover to avoid condensation on the electronic components,
fig. 1.
Fig. 1 Examples of covers
For further installation, see installation and operating instructions
for the standard pump.
TM
02
22
56
39
01