Beckhoff EL3773, Documentation

Page: 15 / 179

Product overview
EL3773 15 Version: 2.5
• CoE object description [ } 94]
3.2 Technical data
Note
RMS value (rms) specifications
All AC value specifications in this documentation such as RMS specifications (rms) refer to
a 50/60 Hz 3-phase mains network with a sinusoidal waveform (crest factor 1.414).
Technical data EL3773
Number of inputs 3 x current, 3 x voltage
Oversampling factor n = 1…100 selectable
Distributed Clocks yes
Accuracy of Distributed Clocks << 1 µs
Input filter limit frequency adjustable, 200 ... 15,000 Hz
Conversion time min. 100 µs, all channels measured simultaneously
Rated mains voltage 230 V
rms
(UL
X
-N) or 400 V
rms
(UL
X
-UL
Y
)
Voltage measuring range (nominal range) DC: ±410 V
AC accordingly: 500 V
rms
AC 3~ (UL
X
-N: 288 V
rms
AC)
common reference potential N/GND*
Max. permitted overvoltage max. ±500 V (peak value, UL
X
-N, corresponds with 353 V
rms
) *
Voltage resolution 1 digit ~ 12.5 mV (16 bit incl. sign)
Input resistance voltage circuit typ. 1.8 MΩ
Current measuring range (nominal range) DC: ±1.5 A
AC accordingly: 3 x 1 A
rms
*
AC recommended via measuring transformer x A AC/1 A AC
Max. permitted overcurrent max. ±1.8 A (peak value, corresponds with 1.2 A
rms
) *
the upstream use of current/limiting current transformers is recommended
Current resolution 1 digit ~ 45.7 µA (16 bit incl. sign)
Input resistance current path typ. 30 mΩ
Signal type variable
Measuring error (for DC measuring) < ±0.5 % (relative to full scale value)
Electrical isolation 2,500 V
Current consumption of power contacts -
Current consumption via E-bus 200 mA typ.
Configuration via TwinCAT System Manager
Weight approx. 75 g
permissible ambient temperature range during opera-
tion 0°C ... +55°C
permissible ambient temperature range during storage -25°C ... +85°C
permissible relative humidity 95 %, no condensation
Dimensions (W x H x D) approx. 15 mm x 100 mm x 70 mm
Mounting [
}
29]
on 35 mm mounting rail conforms to EN 60715
Vibration/shock resistance conforms to EN 60068-2-6 / EN 60068-2-27,
see also
installation instructions for enhanced mechanical load capacity [ } 32]
EMC immunity/emission conforms to EN 61000-6-2 / EN 61000-6-4
Protection class IP20
Installation position variable
Approval CE,
cULus [
}
160]
* operation for longer periods above the rated range can impair the function and/or lead to a shortening of
the service life