
EMA11 - USER MANUAL
-6-
2) TECHNICAL
FEATURES
2.1) GENERAL
SPECIFICATIONS
Power supply/Auxiliary voltage
85-265 V 50/60 Hz/dc.
20-60 V
50/60 Hz/dc (option).
Isolation voltage
3700 Vac rms x 1 minute.
Voltage input
3 inputs, range 10-600Vrms between phase-phase.
Over voltage up to 750 Vac permanent, beyond this value it is imperative to use voltage transformers.
Over voltage category:
III
(fixed installation)
Pollution degree: 2 (normally not conductive; temporary conductive for condensation)
Resistor input: >2 M
Ω
.
Burden 0.2 VA.
Current input
Model EMA11
Model EMA11-1A
3 isolated inputs (internal CT) range
10mA-5A rms
4mA-1A rms
Over current max
10A (100A for 1 second)
2A (10A for 1 second)
Burden 0.2
VA
0.04
VA
Consumption
4VA typical.
6VA max, full optional.
Serial output
RS485/RS232 (configurable on board), half duplex isolated, signals Tx/Rx, Gnd.
Programmable baud rate from 1.200 to 19.200 bps.
Communication protocol: standard ASCII and MODBUS-RTU.
Input signals
2 passive opt isolated inputs (1000 V), 12 - 24 Vdc (up to 8, using options).
Output signals
2 photomos outputs, 12-230 Vac-dc / 150mA max (up to 6, using options).
2, 0-20 or 4-20 mA analog outputs, galvanic insulation (option).
Memory data retention
RAM: 128 KB (useful 50KB); 1 Mbytes (all useful) option.
No volatile memory data using internal battery.
Data retention: 5 years (typical) at +25°C (77°F).
Stored variables: Average power, Min/max values, Harmonics (option), Samples.
Display interface
128x128 dot graphic LCD at high contrast (adjustable) and with LED backlit. Dimension 70x70mm.
Keyboard interface
5 functional keys for paging and programming.
Содержание EMA11
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