I/O Combined Module - Mitsubishi Electric MELSEC iQ-R Series User Manual

I/O combined module

The I/O combined module is equipped with the overload protection function and overheat protection function.
Function
*1
Overload protection
*1
Overheat protection
*1 This function is intended to protect the internal circuit of a module, not to protect external devices.
Additionally, an abnormal load can cause the module internal temperature to rise, resulting in deterioration of the output elements and
discoloration of the case and printed-circuit board. In the event of an abnormal load, turn off the corresponding output immediately and
eliminate the cause.
*2 This operation limits an overcurrent to a certain current value, which allows a continuous output.
3 SPECIFICATIONS
84
3.1 Performance Specifications
Description
• If the output side detects an overcurrent, current limiter operation
• For the overcurrent detection value and limit current, check the "Overload protection" column of the
specifications of each module.
• If the load current falls below the overcurrent detection value, the normal operation resumes.
• If an output side continues to output an overcurrent due to overload, heat is generated inside the module. If a
high temperature heat is detected inside the module, the output turns off.
• The number of output points where the overheat protection function can be used simultaneously varies at
each module. Check the "Overheat protection" column of the specifications of each module.
• If the heat drops, the normal operation resumes automatically.
*2
is activated to limit the output current.