BECKHOFF KL1904 - Manual (Page 16)

Product description
14 KL1904
3.3 Technical data
Product designation KL1904
Number of inputs 4
Number of outputs 0
Status display 4 (one green LED per input)
Reaction time
(read input/write to K-Bus) typically: 4 ms,
maximally: see error reaction time
Error reaction time ≤ watchdog time
Cable length between
sensor and terminal (unshielded) 100 m max.(at 0.75 or 1 mm²)
(shielded) 100 m max.(at 0.75 or 1 mm²)
Input process image 6 bytes
Output process image 6 bytes
KL1904 supply voltage 24 V
DC
(–15% / +20%)
Current consumption of the modular electronics
at 24 V (without current consumption of sensors) 4 channels occupied: typically 12 mA
0 channels occupied: typically 1 mA
Current consumption from K-bus 4 channels occupied: typically 47 mA
0 channels occupied: typically 33 mA
Power dissipation of the terminal typically 540 mW
Electrical isolation (between the channels) no
Electrical isolation (between the channels and the
K-Bus) yes
Insulation voltage (between the channels and the
K-Bus, under common operating conditions) insulation tested with 500 V
DC
Dimensions (W x H x D) 12mm x 100mm x 68mm
Weight approx. 50 g
Permissible ambient temperature (operation) -0°C to +55°C
Permissible ambient temperature
(transport/storage) -25°C to +70°C
Permissible air humidity 5 % to 95 %, non-condensing
Permissible air pressure
(operation/storage/transport) 750 hPa to 1100 hPa
Climate category according to EN 60721-3-3 3K3
Permissible level of contamination Contamination level 2
(please see the section on cleaning)
Impermissible operating conditions TwinSAFE terminals must not be used under the
following operating conditions:
 under the influence of ionizing radiation
 in corrosive environments
 in an environment that leads to
unacceptable soiling of the Bus Terminal
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 control cabinet or terminal box with minimum
protection class IP54 according to IEC 60529
Permissible installation position Variable
Approvals CE