2.4 Abbreviations and definitions
AI Analog input.
AL Alarm, out of range at lower limit.
AO Analog output.
AU Alarm, out of range at upper limit.
CIM Communication interface module.
Current
sinking
The ability to draw current into the terminal and
guide it towards earth in the internal circuitry.
Current
sourcing
The ability to push current out of the terminal and
into an external load which must return it to earth.
DI Digital input.
DO Digital output.
ELCB Earth leakage circuit breaker.
FM Functional module.
GDS Grundfos Digital Sensor, factory-fitted.
GENIbus Proprietary Grundfos fieldbus standard.
GFCI Ground fault circuit interrupter.
GND Protective earth.
Grundfos Eye Status indicator light.
LIVE
Low voltage with the risk of electric shock if the
terminals are touched.
OC
Open collector: Configurable open-collector
output.
PE Protective earth.
RCCB Residual-current circuit breaker.
RCD Residual-current device.
SELV
Safety extra-low voltage. A voltage that cannot
exceed ELV under normal conditions and under
single-fault conditions, including earth faults in
other circuits.
STO
Safe Torque Off. A sub safety function, where a
drive does not actively generate any torque and
coasts freely.
3. Product introduction
3.1 Product description
Grundfos E-pumps are mounted with frequency-controlled
permanent-magnet MLE motors for three-phase power supply
connection. The motors incorporate a PI controller.
You can connect the motors to a signal from an external sensor and
a setpoint signal enabling control in closed loop. You can also use
the motors for an open-loop system in which the setpoint signal is
used as a speed control signal.
The motors incorporate an operating panel which is available in
various versions.
Detailed motor settings are made with Grundfos GO. Furthermore,
you can read important operating parameters via Grundfos GO.
The motors incorporate a functional module. The functional module
is available in various versions with different inputs and outputs.
You can fit the motors with a Grundfos add-on communication
interface module (CIM). The module enables data transmission
between the motor and an external system, for example a BMS or
SCADA system. The module communicates via fieldbus protocols.
You can connect several motors together via radio or bus
communication to create a multimotor system.
3.1.1 Pumps without a factory-fitted sensor
The pumps have a built-in PI controller and can be set for an
external sensor enabling the control of the following parameters:
• constant pressure
• constant differential pressure
• constant temperature
• constant differential temperature
• constant flow rate
• constant level
• constant curve
• constant other value.
The pumps have been factory-set to constant-curve control mode.
You can change the control mode with Grundfos GO, HMI 300, HMI
301 or Grundfos GO Link.
3.1.2
Pumps with a factory-fitted pressure sensor
The pumps have a built-in PI controller and are set for a pressure
sensor enabling the control of the outlet pressure.
The pumps have been factory-set to constant-pressure control
mode. The pumps are typically used to keep a constant pressure in
variable-demand systems.
3.2 Intended use of the product
Only use the product according to the specifications stated in the
installation and operating instructions.
Related information
2.1 Related instructions
3.3
Radio communication
This product incorporates a radio module for remote control which
is a class 1 device and which you can use anywhere in the EU
without restrictions.
For use in the USA and Canada, see the appendix on installation in
the USA and Canada.
This product can communicate with Grundfos GO and other
products of the same type via the built-in radio module.
In some cases, an external antenna may be required. Only
Grundfos-approved external antennas may be connected to this
product, and only by a Grundfos-approved installer.
6
English (US)
To Next Page
Loading...
Need help?
General
