Beckhoff EL2911, Operating Instructions Manual

Page: 19 / 57

Product description
EL2911 19 Version: 1.0.0
3.4 Technical data
Product designation EL2911-0000
Number of inputs 4
Number of outputs 1 (for the power and spring force contacts)
Status display 10 (one green LED for each input and 5 DIAG LEDs)
Reaction time (read input/write to E-bus) typically: 4 ms,
maximally: see error reaction time
Fault response time ≤ watchdog time
Cable length between sensor and terminal unshielded max. 100 m (0.75 or 1 mm²)
shielded max. 100 m (0.75 or 1 mm²)
Output current of the clock outputs typically 10 mA, max. 12 mA
Safe output max. 10 A (for the power and spring force contacts)
Diagnosis:
In switched-off state, external feeds are detected above 5 V.
Input process image 6 byte
Output process image 6 byte
EL2911 supply voltage (PELV) 24 V
DC
(–15% / +20%)
Signal voltage "0" inputs
-3 V ... 5 V (EN 61131-2, type 3) see chapter Characteristic curve of the
inputs [
}
20]
Signal voltage "1" inputs
11 V ... 30 V (EN 61131-2, type 3) see chapter Characteristic curve of the
inputs [ } 20]
Current consumption of the module electronics at 24 V (with-
out current consumption of sensors) 5 channels occupied: typically 29 mA
0 channels occupied: typically 5 mA
Current consumption via E-bus 5 channels occupied: approx. 180 mA
Power dissipation of the terminal typically 2.7 W (at 10 A output current)
Electrical isolation (between the channels) No
Electrical isolation (between the channels and the E-bus) Yes
Insulation voltage (between the channels and the E-bus, un-
der common operating conditions) insulation tested with 500 V
DC
Dimensions (W x H x D) 24 mm x 100 mm x 68 mm
Weight app. 98 g
Permissible ambient temperature (operation)
-25°C to +55°C (see chapter on Temperature measurement [
}
24] )
Permissible ambient temperature (transport/storage) -40°C to +85°C
Permissible air humidity 5% to 95%, non-condensing
Permissible air pressure (operation/storage/transport) 750 hPa to 1100 hPa
(this corresponds to an altitude of approx. -690 m to 2450 m above sea
level, assuming an international standard atmosphere)
Climate category according to EN 60721-3-3 3K3
(the deviation from 3K3 is possible only with optimal environmental con-
ditions and also applies only to the technical data which are specified dif-
ferently in this documentation)
Permissible level of contamination
according to EN 60664-1 level of contamination 2
(note chapter
Maintenance [
}
50] )
Inadmissible operating conditions 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
EMC immunity / emission conforms to EN 61000-6-2 / EN 61000-6-4
Vibration / shock resistance conforms to EN 60068-2-6 / EN 60068-2-27
Shocks 15 g with pulse duration 11 ms in all three axes
Protection class IP20
Permitted operating environment In the control cabinet or terminal box, with minimum protection class
IP54 according to IEC 60529
correct installation position horizontal
(see chapter
Installation position and minimum distances [ } 23] )
Approvals CE, TÜV SÜD