05_MICROLOGIC_2.0A_7.0A_MANUAL.pdf
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Micrologic control units
2.0 A, 5.0 A, 6.0 A and 7.0 A
Low Voltage Products
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User manual
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Micrologic control units
2.0 A, 5.0 A, 6.0 A and 7.0 A
Discovering your control unit
2
Identifying your control unit
2
Overview of functions
4
Setting your control unit
10
Selecting the type of neutral protection
10
Setting procedure
11
Setting the Micrologic 2.0 A control unit
12
Setting the Micrologic 5.0 A control unit
13
Setting the Micrologic 6.0 A control unit
14
Setting the Micrologic 7.0 A control unit
15
Fault and status indications
16
Resetting the fault indications
and checking battery status
16
Testing the earth-fault
and earth-leakage functions
17
Menus
18
Accessing the menus
18
Measuring phase currents
19
Displaying the maximum current values
20
Resetting the maximum current values
21
Viewing the settings
22
Technical appendix
24
Tripping curves
24
Changing the long-time rating plug
26
Zone selective interlocking (ZSI)
27
Digital display
28
Thermal memory
29
1
Micrologic A
Schneider Electric
Identifying your control unit
Designations
Discovering your
control unit
All Compact NS800-3200 and Masterpact
NT and NW circuit breakers are equipped
with a Micrologic control unit
that can be changed on site.
Control units are designed to protect
power circuits and connected loads.
Micrologic 2.0 A: basic protection and ammeter
t
Micrologic 2.0 A
100
%
40
%
menu
long time
0
Ir
Isd
I
Ir
tr
(s)
alarm
.7
.8
8
.9
.95
.98
1
4
12
instantaneous
.4
.5
.6
1
2
16
20
at 6 Ir
24
x In
.5
Long time + Instantaneous
Isd
3
4
5
6
2
2.5
8
1.5
10
x
Ir
setting
Micrologic 2.0 A
Micrologic 5.0 A: selective protection and ammeter
t
Micrologic 5.0 A
X
Y
100
%
40
%
Z
menu
long time
Ir
.7
.8
tr
(s)
8
alarm
0
Ir
Isd
Ii
I
.9
4
12
.5
.6
.95
.98
1
2
16
20
at 6 Ir
24
.4
1
.5
x In
short time
instantaneous
tsd
(s)
.4
.
4
.
1
I i
Isd
1.5
4
.3
8
Long time + Short time + Instantaneous
3
5
6
10
.
3
.2
2
2.5
6
8
4
12
.
2
.1
3
15
X: type of protection
c 2 for basic protection
c 5 for selective protection
c 6 for selective + earth-fault protection
c 7 for selective + earth-leakage protection
10
2
t
0
2
off
on
I
x
Ir
x
In
setting
delay
Micrologic 6.0 A: selective + earth-fault protection and
ammeter
Y: version number
identification of the control-unit generation.
"0" signifies the first generation.
t
Micrologic 6.0 A
t
Z: type of measurement
c A for "ammeter"
c P for "power meter"
c H for "harmonic meter"
c no indication: no measurements
2
I
t on
100
%
I
2
t off
40
%
menu
long time
Ir
.7
.8
tr
(s)
8
alarm
.9
.95
.98
4
12
0
Ig
I
Isd
Long time + Short time
+ Instantaneous
0
Ir
Ii
I
.4
.5
.6
1
2
16
20
1
.5
at 6 Ir
24
x In
short time
instantaneous
Isd
1.5
tsd
(s)
I i
4
.
4
.4
.
1
.
3
8
10
12
15
Earth-fault protection
3
5
6
.
.
1
2
2.5
6
8
.
2
.3
4
3
10
2
0
2
off
on
I
t
x
In
x
Ir
setting
delay
test
tg
(s)
Ig
E
F
.4
.4
.
1
.2
.
3
.
1
0
off
D
B
C
G
on
I
2
t
.2
.3
.
1
H
A
ground fault
Micrologic 7.0 A: selective + earth-leakage protection and
ammeter
t
t
Micrologic 7.0 A
100
%
40
%
menu
0
I
∆
n
I
long time
Isd
Long time + Short time
+ Instantaneous
0
Ir
Ii
I
Ir
tr
(s)
.7
.8
8
12
16
20
at 6 Ir
24
alarm
.9
4
.5
.6
.95
1
2
.98
.4
1
.5
x In
Earth-leakage protection
short time
instantaneous
Isd
1.5
tsd
(s)
I i
4
.
4
.4
.1
.
3
8
10
12
15
3
5
6
8
6
on
I
2
t
.
2
.
3
.2
2
2.5
4
.1
0
10
off
2
off
x
Ir
x
In
setting
delay
test
n
5
230
3
7
350
1
2
10
20
30
140
800
.5
60
earth leakage
2
Micrologic A
Schneider Electric
Presentation
1
top fastener
1
2
bottom fastener
10
3
protective cover
4
cover opening point
Mi
cro
log
ic 7
.0 A
5
lead-seal fixture for protective cover
31
6
long-time rating plug
7
screw for long-time rating plug
12
8
connection with circuit breaker
11
9
infrared link with communications interfaces
13
9
10
terminal block for external connections
10
0
%
11
housing for battery
7
30
29
%
40
12
digital display
13
three-phase bargraph and ammeter
al
arm
m
enu
long
time
t
r
(s)
8
1
2
16
20
24
4
.8
Ir
.9
2
.7
.9
5
.98
1
.4
.5
.6
Adjustment dials
.5
at
6
Ir
1
x
In
5
6
14
long-time current setting Ir
15
long-time tripping delay tr
3
4
16
short-time pickup Isd
8
17
short-time tripping delay tsd
2
18
instantaneous pick-up Isd
19
instantaneous pick-up Ii
Micrologic 7.0 A
Micrologic 2.0 A
20
earth-fault pick-up Ig
21
earth-fault tripping delay tg
24
25
26
27
28
7
22
earth-leakage pick-up I
∆
n
23
earth-leakage tripping delay
t
long time
Ir
tr
(s)
alarm
.7
.8
8
.9
.95
.98
4
12
16
20
14
15
18
.6
2
.4
.5
1
1
.5
at 6 Ir
24
Indications
x In
Micrologic 7.0 A
instantaneous
Isd
4
31
3
5
2.5
6
8
10
24
LED indicating long-time tripping
2
1.5
setting
x
Ir
25
LED indicating short-time tripping
26
LED indicating earth-fault
or earth-leakage tripping
12
33
27
LED indicating auto-protection tripping
28
LED indicating an overload
13
Navigation
Micrologic 5.0 A
100
%
29
navigation button to change menus
28
7
40
%
30
navigation button to view menu contents
long time
Ir
tr
(s)
alarm
14
15
16
17
19
.7
.8
8
31
button for fault-trip reset and battery test
.9
4
12
16
20
.6
.95
.98
2
.5
1
.4
1
24
.5
x In
29
at 6 Ir
30
menu
short time
instantaneous
Isd
tsd
(s)
I i
.
.
3
.
4
.
4
.
1
4
.
3
8
10
12
15
3
5
6
Test
.
2
2.5
6
8
4
.
1
28
7
2
3
long time
1.5
0
2
off
14
Ir
tr
(s)
alarm
10
.7
.8
8
on
I
2
t
.9
.95
.98
4
12
16
20
x
Ir
x
In
setting
delay
.6
2
32
test button for earth-fault and earth-leakage
protection
.5
1
15
.4
1
.5
at 6 Ir
24
x In
33
short time
instantaneous
Isd
tsd
(s)
.
3
.
4
.
4
.
1
4
.
3
I i
8
10
12
15
off
5
3
6
33
test connector
.
2
19
16
6
8
10
4
2.5
.
2
.
1
0
off
2
3
on
I
2
t
1.5
2
setting
x
Ir
17
x
In
32
delay
test
I
n
(A)
I
(ms)
5
230
350
3
7
2
10
20
30
Micrologic 6.0 A
33
140
22
1
800
.5
60
earth leakage
23
15
14
17
16
21
20
28
7
long time
Ir
tr
(s)
alarm
.7
.8
8
.9
.95
.98
4
12
16
20
.6
2
.5
1
.4
1
.5
at 6 Ir
24
x In
short time
instantaneous
Isd
tsd
(s)
.
4
.
4
I i
4
.
3
8
3
5
6
10
12
15
off
test
.
3
.
2
2.5
6
8
10
4
19
32
33
.
2
.
1
2
3
.
1
0
off
1.5
2
on
I
2
t
x
Ir
x
In
setting
delay
Ig
tg
(s)
.
4
.
4
E
.
3
D
F
.
3
.
2
C
G
H
.
2
.
1
B
.
1
0
off
A
I
on
I
2
t
ground fault
3
Micrologic A
Schneider Electric
Overview of functions
Current protection
Discovering your
control unit
Protection settings
Depending on the type of installation, it is possible to set the tripping curve of your
control unit using the parameters presented below.
Micrologic 2.0 A
t
1
2
3
0
Ir
Isd
I
1. current setting Ir (long time)
2. tripping delay tr (long time) for 6 x Ir
3. pick-up Isd (instantaneous)
Micrologic 5.0 A, 6.0 A,
7.0 A
Micrologic 6.0 A
Micrologic 7.0 A
t
t
t
1
I
2
t on
I
2
t on
2
2
I
t off
2
1
1
I
t off
3
4
2
2
5
0
I
∆
n
I
0
Ir
Isd
Ii
I
0
Ig
I
1. current setting Ir
(long time)
2. tripping delay tr
(long time) for 6 x Ir
3. pick-up Isd (short time)
4. tripping delay tsd
(short time)
5. pick-up Ii
(instantaneous)
1. pick-up Ig (earth fault)
2. tripping delay tg
(earth fault)
1. pick-up I
∆
n
(earth leakage)
2. tripping delay
∆
t
(earth leakage)
Long-time protection
The long-time protection function protects cables (phases and neutral)
against overloads. This function is based on true rms measurements.
Thermal memory
The thermal memory continuously accounts for the amount of heat in the cables,
both before and after tripping, whatever the value of the current (presence of
an overload or not). The thermal memory optimises the long-time protection
function of the circuit breaker by taking into account the temperature rise in the
cables. The thermal memory assumes a cable cooling time of approximately
15 minutes.
Long-time current setting Ir and standard tripping delay tr
Micrologic control unit
2.0 A and 5.0 A
current setting
Ir = In x …(*)
0.4
0.5
0.6
0.7
0.8
0.9
0.95
0.98
1
tripping between
other ranges or disable by changing rating plug
1.05 and 1.20 x Ir
time delay (s)
tr at 1.5 x Ir
12.5
25
50
100
200
300
400
500
600
accuracy:
tr at 6 x Ir
0.5
1
2
4
8
12
16
20
24
0 to -20 %
tr at 7.2 x Ir
0.34
0.69
1.38
2.7
5.5
8.3
11
13.8
16.6
* In: circuit breaker rating
Setting accuracy of the Ir setting may be enhanced by using a different long-time
rating plug.
See the technical appendix "Changing the long-time rating plug".
4
Micrologic A
Schneider Electric
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