1. General information
Read this document before you install the product.
Installation and operation must comply with local
regulations and accepted codes of good practice.
1.1 Hazard statements
The symbols and hazard statements below may appear in Grundfos
installation and operating instructions, safety instructions and
service instructions.
DANGER
Indicates a hazardous situation which, if not avoided, will
result in death or serious personal injury.
WARNING
Indicates a hazardous situation which, if not avoided,
could result in death or serious personal injury.
CAUTION
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate personal injury.
The hazard statements are structured in the following way:
SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning
• Action to avoid the hazard.
1.2 Notes
The symbols and notes below may appear in Grundfos installation
and operating instructions, safety instructions and service
instructions.
Observe these instructions for explosion-proof products.
A blue or grey circle with a white graphical symbol
indicates that an action must be taken.
A red or grey circle with a diagonal bar, possibly with a
black graphical symbol, indicates that an action must not
be taken or must be stopped.
If these instructions are not observed, it may result in
malfunction or damage to the equipment.
Tips and advice that make the work easier.
1.3 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.
2. Product introduction
2.1 Related instructions
These installation and operating instructions are a
supplement to the installation and operating instructions
for the corresponding standard pumps NB, NK, NBS and
VLS. For instructions not mentioned specifically in this
manual, see the installation and operating instructions for
the standard pump.
Installation and operating instructions
Title QR code
Publication
number
Link
VLS 98434722
http://
net.grundfos.com/
qr/i/98434722
NB 93048247
http://
net.grundfos.com/
qr/i/93048247
NK 93048245
http://
net.grundfos.com/
qr/i/93048245
NBS 99932034
http://
net.grundfos.com/
qr/i/99932034
2.2 Product description
Grundfos MLE 100-180 are frequency-controlled permanent-
magnet motors for single-phase or three-phase mains 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 a 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.
5
English (US)
To Next Page
Loading...
