Technical Data - Beckhoff EL1918 Operation Manual

Product description
4.3

Technical data

The current certificates of all TwinSAFE products with the underlying standards and directives can be found
at https://www.beckhoff.com/en-en/support/download-finder/certificates-approvals/.
Product designation
Number of inputs
Status display
Response time (read input/write to E-bus)
Fault reaction time
Cable length between sensor and terminal
Output current of the clock outputs
Input process image
Output process image
Supply voltage of the EL1918 (PELV)
Signal voltage "0" inputs
Signal voltage "1" inputs
Current consumption of the module electronics at 24 V (without
current consumption of sensors)
Current consumption via E-bus
Power loss of the terminal
Electrical isolation (between the channels)
Electrical isolation (between the channels and the E-bus)
Insulation voltage (between the channels and the E-bus, under
common operating conditions)
Dimensions (W x H x D)
Weight
Permissible ambient temperature (operation)
Permissible ambient temperature (transport/storage)
Permissible air humidity
Permissible air pressure (operation/storage/transport)
Climate category according to EN 60721-3-3
Permissible degree of pollution
according to EN 60664-1
Inadmissible operating conditions
EMC immunity / emission
Vibration / shock resistance
Shocks
Protection rating
Permitted operating environment
Correct installation position
Approvals
24
EL1918 and EL1918-2200
8
12 (one green LED per input + 4 DIAG LEDs)
typically: 4 ms,
maximum: see fault reaction time
≤ watchdog time
unshielded max. 100 m (with 0.75 or 1 mm²)
shielded max. 100 m (with 0.75 or 1 mm²)
typically 3 mA, max. 6.5 mA
7 bytes
6 bytes
24 V (–15% / +20%)
DC
-3 V to 5 V (EN 61131-2, type 3) see chapter Characteristic curve
of the inputs [} 26]
11 V to 30 V (EN 61131-2, type 3) see chapter Characteristic
curve of the inputs [} 26]
8 channels occupied: typically 29.6 mA (@28.8 V
0 channels occupied: typically 2.27 mA (@28.8 V
8 channels occupied: approx. 165 mA
typically 1.6 W
No
Yes
Insulation tested with 500 V
12 mm x 100 mm x 68 mm
approx. 50 g
-25°C to +55°C (observe the chapter Temperature measurement
[} 30])
-40 °C to +70 °C
5% to 95%, non-condensing
750 hPa to 1100 hPa
(this is equivalent to an altitude of approx. -690 m to 2450 m
above sea level assuming an international standard atmosphere)
3K3
(the deviation from 3K3 is possible only with optimal
environmental conditions and also applies only to the technical
data which are specified differently in this documentation)
Degree of pollution 2
(please note the chapter Maintenance [} 54])
TwinSAFE Terminals must not be used under the following
operating conditions:
• under the influence of ionizing radiation (exceeding the
natural background radiation)
• in corrosive environments
• in an environment that leads to unacceptable contamination
of the TwinSAFE component
conforms to EN 61000-6-2 / EN 61000-6-4
conforms to EN 60068-2-6 / EN 60068-2-27
15 g with pulse duration 11 ms in all three axes
IP20
In the control cabinet or terminal box, with minimum protection
rating IP54 according to IEC 60529
see chapter Installation position and minimum distances [} 29]
CE, TÜV SÜD
Version: 2.0.0
)
DC
)
DC
DC
EL1918 and EL1918-2200