ABB EI813F 3BDH000022R1 power card a launch

ABB EI813F 3BDH000022R1 power card a launch

Ensure that the polarity of the external power supply is correct. Otherwise, a short-circuit condition may damage an output element and cause smoldering and scattering of chips. Beware that wrongly connecting a connector wired for F3XD32 or F3XD64 to the module may disable the protectors and damage internal elements.*1: If an inductive load, such as a relay, is to be connected, a surge protector is also required on the load side. Connect a surge protector or a diode across the load nearby so that the module output terminal voltage will not exceed the specified operating load voltage range. For details, see Subsection A3.6.5, “Connecting Output Devices.” *2: The contact operation of the output block of the circuit and the LED display operate independently and thus may be inconsistent in the event of an error.*3: For information on the module’s behavior during a CPU failure, see subsection A4.3.3, “Indicating Problem Severity and Status of Output Module.”

Operation of the protection circuitry

- If short-circuit occurs, the ON voltage increases and the short-circuit current is limited within the range 1-3 A. - If the short-circuit condition is removed, normal operation resumes. - If the short-circuit condition persists, the short-circuit current may cause the temperature of the output element to reach approx. 160°C, triggering the overheat protector to shut down the output. - If the temperature of the overheated output element then drops by about 10°C, normal operation resumes. - The overheat protector will not be triggered if the module is operated normally within its specifications with no short-circuit condition. - Both the short-circuit protector and overheat protector are designed to control outputs individually. Under some short-circuit conditions, however, the overheat protector may shut down not only its associated output but also other outputs. - Short-circuit and overheat protectors are designed to protect the output element against short-term short-circuit. Never leave the module in prolonged short-circuit condition. Otherwise, the module enclosure may deteriorate or the PCB may be discolored.

Operation of the protection circuitry

- If short-circuit occurs, the ON voltage increases and the short-circuit current is limited within the range 1-3 A. - If the short-circuit condition is removed, normal operation resumes. - If the short-circuit condition persists, the short-circuit current may cause the temperature of the output element to reach approx. 160°C, triggering the overheat protector to shut down the output. - If the temperature of the overheated output element then drops by about 10°C, normal operation resumes. - The overheat protector will not be triggered if the module is operated normally within its specifications with no short-circuit condition. - Short-circuit protectors are designed to control outputs individually. On the other hand, the overheat protectors control outputs in pairs: OUT1 and OUT2, OUT3 and OUT4, …, OUT63 and OUT64..Under some short-circuit conditions, however, the overheat protector may shut down not only its associated outputs but also other outputs.