Symbols Used In This Document; Abbreviations And Definitions - Grundfos CRE Series Installation And Operating Instructions Manual

2. Symbols used in this document

Warning
If these safety instructions are not observed,
it may result in personal injury.
Warning
If these instructions are not observed, it may lead
to electric shock with consequent risk of serious
personal injury or death.
Warning
The surface of the product may be so hot that
it may cause burns or personal injury.
If these safety instructions are not observed,
Caution
it may result in malfunction or damage to the
equipment.
Notes or instructions that make the job easier
Note
Note
and ensure safe operation.

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.
The ability to draw current into the terminal and
Current sinking
guide it towards GND in the internal circuitry.
The ability to push current out of the terminal
Current
and into an external load which must return it
sourcing
to GND.
DI Digital input.
DO Digital output.
ELCB Ground leakage circuit breaker.
Grundfos Digital Sensor.
GDS
Factory-fitted sensor in some Grundfos pumps.
GENIbus Proprietary Grundfos fieldbus standard.
Ground fault circuit interrupter.
GFCI
(USA and Canada).
GND Ground.
Grundfos Eye Status indicator light.
Low voltage with the risk of electric shock if the
LIVE
terminals are touched.
Open collector:
OC
Configurable open-collector output.
PE Protective ground.
Protective extra-low voltage.
A voltage that cannot exceed ELV under
PELV normal conditions and under single-fault
conditions, except ground faults in other
circuits.
Safety extra-low voltage.
A voltage that cannot exceed ELV under
SELV normal conditions and under single-fault
conditions, including ground faults in other
circuits.
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