Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 266

Operation error
Error code Description
(SD0)
3400H An invalid operation (such as division by zero) is performed.
3402H Input data (PVP), operation constant (DVLS, PN, TRK, SVPTN_B0, SVPTN_B1), or tag data is a subnormal number or NaN (not a
number).
3403H An overflow has occurred.
3405H The operating time (ST_) setting is less than 0.
The execution cycle (T) setting is less than 0.
The sample time (STHT) setting is less than 0.
The value divided the operating time (ST_) by the execution cycle (T) exceeds 32767.
The value divided the sample time (STHT) by the execution cycle (T) exceeds 32767.
10 LOOP CONTROL OPERATION
264
10.13 Sample PI Control (Enable Tracking for primary loop) (M+P_SPI_T)