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Micrologic control units
Micrologic P "power"
Functions and characteristics
DB101133
DB101134
Measurements .........................................................
The Micrologic P control unit calculates in real time all the electrical values (V, A, W,
VAR, VA, Wh, VARh, VAh, Hz), power factors and
cos
ϕ
factors.
The Micrologic P control unit also calculates demand current and demand power
over an adjustable time period. Each measurement is associated with a minimeter
and a maximeter.
In the event of tripping on a fault, the interrupted current is stored. The optional
external power supply makes it possible to display the value with the circuit breaker
open or not supplied.
Instantaneous values
The value displayed on the screen is refreshed every second.
Minimum and maximum values of measurements are stored in memory (minimeters
and maximeters).
Default display.
Display of a maximum
current.
Currents
I
rms
A
1
2
3
N
A
E-fault
E-leakage
I
max rms
A
1
2
3
N
A
E-fault
E-leakage
DB101135
DB117042
Voltages
U
rms
V
12
23
31
V
rms
V
1N
2N
3N
U
average rms
V
(U12 + U23 + U31) / 3
U
unbalance
%
Power, energy
P
active
, Q
reactive
, S
apparent
W, Var, VA Totals
E
active
, E
reactive
, E
apparent
Wh, VARh, VAh Totals consumed - supplied
Totals consumed
Totals supplied
Power factor
PF
Total
Frequencies
F
Hz
Display of a voltage.
Display of a power.
Demand metering
The demand is calculated over a fixed or sliding time window that may be
programmed from 5 to 60 minutes. According to the contract signed with the power
supplier, an indicator associated with a load shedding function makes it possible to
avoid or minimise the costs of overrunning the subscribed power. Maximum demand
values are systematically stored and time stamped (maximeter).
DB101137
DB101138
Currents
I
demand
A
1
2
3
N
A
E-fault
E-leakage
I
max demand
A
1
2
3
N
A
E-fault
E-leakage
Power
P, Q, S
demand
W, Var, VA Totals
P, Q, S
max demand
W, Var, VA Totals
Display of a frequency.
Display of a demand power.
PB104850
Minimeters and maximeters
Only the current and power maximeters may be displayed on the screen.
Time-stamping
Time-stamping is activated as soon as time is set manually or by a supervisor.
No external power supply module is required (max. drift of 1 hour per year).
Reset
An individual reset, via the keypad or remotely, acts on alarms, minimum and
maximum data, peak values, the counters and the indicators.
Additional measurements accessible with the COM option
Some measured or calculated values are only accessible with the COM
communication option:
I
b
peak /
2
, (I
1
+ I
2
+ I
3
)/3, I
unbalance
load level in % Ir
b
total power factor.
b
The maximeters and minimeters are available only via the COM option for use with
a supervisor.
ION Enterprise Power Management software.