E.D.&A.
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E.D.&A.
Switch heating controller
Company that is specializing in the supply of high-grade rail applications for rail, tram and metro companies, principally in the field of switch heating.
Description development / required specifications
The purpose of this controller was the heating adjustment by switching it on and off and the enabling of remote monitoring.
In detail
The modules communicate over a 2 wire RS485 network with E.D.&A.'s V5 HPC®.
As soon as the temperature falls under a specific value, the V5 HPC® gives the command to the heating controller to switch on. The controller switches the spark igniters on and checks after a short while if the points warm up. With the communication options, status and breakdowns can be reported locally and remotely.
Insensitivity to interference in this design was of the utmost importance because of the many electrical and magnetic interference fields that passing trains generate.
Characteristics
- Industrial temperature range
(-20°C to +70°C). - Power supply 42V AC (± 10% provided with a LED indicator).
- Maximum 32 modules on one bus, node numbers set up via 2 round dipswitches.
- 1 relay output with potential free contact 24V.
- 1 relay output, singular contact for the connection of a magnetic valve.
- 4 analogue threshold value inputs for the connection of a thermo-couple or PT100.
- 4 LED's for the status of the rail temperature.
- 1x 3-wire PT100 input for temperature measurement
(-50°C to +50°C).
