Emerson Unidrive M200 Parameter Reference Manual page 243

Trip Reason
{HF01} CPU hardware fault during exception processing
{HF02} CPU memory management fault is an exception that occurs because of a memory protection related fault
CPU has detected a Bus Fault. A Bus Fault is an exception that occurs because of a memory related fault for an instruction or
{HF03}
data memory transaction. This might be from an error detected on a bus in the memory system.
CPU has detected a usage fault:
A Usage Fault is an exception that occurs because of a fault related to instruction execution. This includes:
an undefined instruction
an illegal unaligned access
invalid state on instruction execution
{HF04}
an error on exception return.
The following can cause a Usage Fault when the core is configured to report them:
an unaligned address on word and half word memory access
division by zero.
{HF05} Reserved
{HF06} Reserved
{HF07} Watchdog failure
{HF08} CPU Interrupt crash. Interrupt crash level indicated by subtrip number.
{HF09} Free store overflow
{HF10} Reserved
The HF11 trip indicates that a non-volatile memory comms error has occurred.
Sub-
Reason
trip
{HF11}
1 Non-volatile memory comms error.
EEPROM size is incompatible with
2
the user firmware.
Stack overflow
Sub-trip Reason
1 User program or derivative background stack overflow
{HF12}
2 User program or derivative timed stack overflow
3 Main system interrupt stack overflow
4 Main system background stack overflow
{HF13} Reserved
{HF14} Reserved
{HF15} Reserved
{HF16} RTOS error (the background task has returned)
{HF17} Reserved
The HF18 trip indicates that the internal flash memory has failed when writing option module parameter data. The reason for
the trip can be identified by the sub-trip number.
Unidrive M200 Parameter Reference Guide
Issue: 01.05.00.10
Recommended action
Hardware fault – contact the supplier of the drive.
After 1min the drive will go to its bootloader. Re-program drive with compatible
user firmware using UniMConnect
243