KMB SMC 144, Руководство по эксплуатации

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1 General Description
The SMC 144 is specially designed for remote monitoring of energy consumption and its quality. The DIN rail
display-less design with multiple communication options is suitable for a wide spectrum of automation tasks in
modern buildings, remote supervision of the infrastructure and also remote load management. Absence of local
panel controls (display and keyboard) limits possibilities for hostile user interaction. For advanced protection,
the configuration of SMC 144 can be also locked by a pin.
It is equipped with four voltage inputs and four inputs for external through-hole or clamp-on current sensors
for direct measuring up to 600 A nominal current. It uses serial communication and peripherals, such as digital
inputs and output, secondary serial communication interface for external I/O modules or ethernet module can
be optionally assembled. There are three LEDs for device status indication and alarm monitoring.
1.1 Characteristic Features
Connection and Measurement
ˆ
four measuring voltage inputs (L
1
, L
2
, L
3
, L
4
) towards neutral input (N)
ˆ
four inputs for through-hole (option P) or clamp-on (option S) current sensors with nominal current range
from 5 to 600 A (I
1
, I
2
, I
3
, I
4
)
ˆ
two digital inputs (option D)
ˆ
single relay or impulse output (option R or option I)
ˆ
features can be upgraded via external I/O modules (with Modbus Master firmware module)
ˆ
power supply:
– auxiliary voltage 75
÷
510 V
AC
or 80
÷
350 V
DC
(option N)
– low auxiliary voltage 24 ÷ 48 V
AC
or 20 ÷ 75 V
DC
(option L)
ˆ
128 samples per period, voltage and current inputs are read continuously without any gaps
ˆ
voltage and current harmonics calculation up to order 63
ˆ
evaluation of all usual three-phase and single-phase quantities such as powers, power factors, harmonics
and THD of voltages and currents etc.
Registration of Measured Data
ˆ
built-in real-time clock with battery backup
ˆ
flash memory to record the measured data with a capacity of 512 MB
ˆ
aggregation interval from 200 milliseconds to 24 hours
ˆ
records voltage outages
Transfer and Evaluation of Recorded Data
ˆ
RS-485 communication interface for data transmission, device configuration and firmware upgrade
ˆ
device can also be equiped with second RS-485 (option B), M-Bus (option M) or Ethernet (option E)
interface
ˆ
visualization software ENVIS and configuration program ENVIS.Daq
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