The unit LUW 1398/3-S02 was developed especially for locomotive applications. Capable of monitoring DC-currents of 3 lamps, the unit LUW 1398/3-S02 provide multiple solid state relay outputs for indicating the area in which a lamp has failed.
The solid state outputs can be used to drive an audible signaling device, a centrally located computer, or signaling LEDs.
The unit is measuring the currents which are supplying the lamps. Each measured current is monitored. If one of the 3 currents exceeds the adjusted limit, the internal solid state relay are switched on. For each input channel there are two separate soild state output contacts provided. These contacts are isolated from each other and can be used for different tasks.
Function
Measure resistance only 40 mOhm
Current value is factory specified
Over- or underflow of the current value is for each lamp seperated monitoring
Switching contacts are protected by
bi-directional supressor diodes with 33V breakdown voltage
Relay current max. 100 mA
Power Supply
16,8 .. 31,2 V DC No galvanic isolation !
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