22 / 148
A-6
Functions and characteristics
Micrologic control units
Overview of functions
All Compact circuit breakers are equipped with
a Micrologic control unit that can be changed on site.
Control units are designed to protect Power circuits
and loads. Alarms may be programmed for remote
indications.
Measurements of current, voltage, frequency, power
and power quality optimise continuity of service and
energy management.
Dependability
Integration of protection functions in an ASIC electronic component used in all
Micrologic control units guarantees a high degree of reliability and immunity to
conducted or radiated disturbances.
On Micrologic A, E and P control units, advanced functions are managed by
an independent microprocessor.
Accessories
Certain functions require the addition of Micrologic control unit accessories,
described on
page A-27
.
The rules governing the various possible combinations can be found in
the documentation accessible via the Products and services menu of
the www.schneider-electric.com web site.
Micrologic name codes
Current protection
Micrologic 2: basic protection
2.0 E
X Y Z
DB128024
Protection:
long time
+ instantaneous
X: type of protection
2 for basic protection
b
5 for selective protection
b
6 for selective + earth-fault protection
b
7 for selective + earth-leakage protection.
b
Y: control-unit generation
Identification of the control-unit generation.
“0” signifies the first generation.
Z: type of measurement
A for “ammeter”
b
E for “energy”
b
P for “power meter”
b
Micrologic 5: selective protection
DB128025
Protection:
long time
+ short time
+ instantaneous
PB100772-32
PB106351A32
Micrologic 6: selective + earth-fault protection
DB128025
DB128027
Protection:
long time
+ short time
+ instantaneous
+ earth fault
Micrologic 7: selective + earth-leakage protection 6: selective + earth-fault protection
DB128025
DB128045
Protection:
long time
+ short time
+ instantaneous
+ earth leakage up to 3200A