Eng
lish (US)
12
(QJOLVK86
Installation and operating instructions
12. Motor information
13. General description
Grundfos E-pumps have standard motors with integrated
frequency converter. The pumps are for single-phase or three-
phase power supply connection.
13.1 Pumps without factory-fitted sensor
The pumps have a built-in PI controller and can be set up for an
external sensor enabling control of the following parameters:
• pressure
• differential pressure
• temperature
• differential temperature
• flow rate
• liquid level in a tank.
From factory, the pumps have been set to control mode
uncontrolled. The PI controller can be activated by means of
Grundfos GO and R100.
13.2 Pumps with pressure sensor
The pumps have a built-in PI controller and are set up with a
pressure sensor enabling control of the pump discharge
pressure.
The pumps are set to control mode controlled. The pumps are
typically used to hold a constant pressure in variable-demand
systems or differential pressure in closed-loop applications.
13.3 Settings
The description of settings apply both to pumps without factory-
fitted sensor and to pumps with a factory-fitted pressure sensor.
Setpoint
The desired setpoint can be set in three different ways:
• directly on the pump control panel
• via an input for external setpoint signal
• by means of Grundfos GO or wireless remote control.
Other settings
All other settings can only be made by means of the Grundfos GO
or R100.
Important parameters such as actual value of control parameter,
power consumption, etc. can be read via the Grundfos GO or
R100.
If special or customized settings are required, use Grundfos PC
Tool E-products. Contact your local Grundfos company for more
information.
13.
General description
12
13.1 Pumps without factory-fitted sensor
12
13.2 Pumps with pressure sensor
12
13.3 Settings
12
14.
Mechanical installation
13
14.1 Motor cooling
13
14.2 Outdoor installation
13
15.
Electrical connection
13
15.1 Three-phase pumps, 3-10 hp
13
15.2 Three-phase pumps, 15-30 hp
15
15.3 Signal cables
17
15.4 E-pump electrical connections
17
15.5 Bus connection cable
19
16.
Modes
19
16.1 Overview of modes
19
16.2 Operating mode
19
16.3 Control mode
20
17.
Setting up the pump
20
17.1 Factory setting
20
18.
Setting by means of control panel
20
18.1 Setting of operating mode
20
18.2 Setpoint setting
21
19.
Setting by means of R100
21
19.1 Menu OPERATION
23
19.2 Menu STATUS
24
19.3 Menu INSTALLATION
25
19.4 Typical display settings for constant-pressure E-pumps 32
19.5 Typical display settings for analog-input E-pumps
33
19.6 Grundfos GO Remote
34
20.
Setting by means of PC Tool E-products
35
21.
Priority of settings
35
22.
External forced-control signals
35
22.1 Start/stop input
35
22.2 Digital input
36
23.
External setpoint signal
36
24.
Bus signal
37
25.
Other bus standards
37
26.
Indicator lights and signal relay
37
27.
Emergency operation (only 15-30 hp)
39
28.
Insulation resistance
40
29.
Maintenance and service
40
29.1 Cleaning of the motor
40
29.2 Relubrication of motor bearings
40
29.3 Replacement of motor bearings
40
29.4 Replacement of varistor (only 15-30 hp)
40
29.5 Service parts and service kits
40
30.
Technical data - three-phase pumps, 3-10 hp
40
30.1 Supply voltage
40
30.2 Overload protection
40
30.3 Leakage current
40
30.4 Inputs/output
41
31.
Technical data - three-phase pumps, 15-30 hp
41
31.1 Supply voltage
41
31.2 Overload protection
41
31.3 Leakage current
41
31.4 Inputs/output
41
31.5 Other technical data
42
32.
Installation in the USA and Canada
43
32.1 Electrical connection
43
32.2 General considerations
43
33.
Disposal
43
Summary of Contents for VLSE
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