Technical data
Technical data  | EJ1254  | 
|---|---|
Specification  | similar to EN 61131-2, type 3,  | 
Connection technology  | 4-wire  | 
Number of inputs  | 4  | 
Nominal voltage of the inputs  | 24 VDC (-15% / +20%)  | 
Signal voltage “0”  | -3 V ... 5 V (EN 61131-2, type 3)  | 
Signal voltage “1”  | 11 V ... 30 V (EN 61131-2, type 3)  | 
Input current  | typ. 3 mA (EN 61131-2, type 3)  | 
Input filter  | <1 µs typ.  | 
Resolution timestamp  | 1 ns  | 
Precision of timestamp in the module  | 10 ns (+ input delay)  | 
Distributed clocks  | yes  | 
Distributed clocks precision  | <<1 µs  | 
Input delay TON/TOFF  | <1 µs  | 
Current consumption load voltage (Up contacts)  | 10 mA typ. + load  | 
Current consumption via E-bus  | 135 mA typ.  | 
Electrical isolation  | 500 V (E-bus/field voltage)  | 
Permissible ambient temperature range during operation  | -25°C … +60°C (extended temperature range)  | 
Permissible ambient temperature range during storage  | -40°C ... +85°C  | 
Permissible relative humidity  | 95%, no condensation  | 
Operating altitude  | max. 2.000 m  | 
Dimensions (W x H x D)  | approx. 12 mm x 66 mm x 55 mm  | 
Weight  | approx. 30 g  | 
Mounting  | on signal distribution board  | 
Pollution degree  | 2  | 
Installation position  | |
1 and 3  | |
Color coding  | yellow  | 
Vibration/shock resistance  | conforms to EN 60068-2-6 / EN 60068-2-27 (with corresponding signal distribution board)  | 
EMC immunity/emission  | conforms to EN 61000-6-2/EN 61000-6-4 (with corresponding signal distribution board)  | 
Protection class  | EJ module: IP20,  | 
Approvals/markings*  | CE, EAC, UKCA  | 
*) Real applicable approvals/markings see type plate on the side (product marking).
![]()  | CE approval The CE Marking refers to the EtherCAT plug‑in module mentioned above.  | 
