Delta PLFF fault code meaning
Delta / PLFF
Series: C2000 Plus, CFP2000, CH2000, CP2000, DPD-K, MH300-HS, MH300, MP300, MS300
Parameter error during operation
AC motor drive
Meaning: PLC parameter error warning during operation
Possible causes
- While the PLC program is running, when PLC executes
- When the PLC function is enabled, PLFF is displayed if there is no program in the internal PLC. This is normal; simply download the program.
Source: C2000 Plus Series User Manual (DELTA_IA-MDS_C2000 Plus_UM_TC_20250522) P788; CFP2000 Series User Manual (DELTA_IA-MDS_CFP2000_UM_SC_20250731) P536; CH2000 Series User Manual (DELTA_IA-MDS_CH2000_UM_SC_20251030) P736; CP2000 Series User Manual (DELTA_IA-MDS_CP2000_UM_SC_20250704) P648; DPD-K Series User Manual (DPD-K user manual_20211224) P597; MH300 Series (High-Speed Models) User Manual (DELTA_IA-MDS_MH300-HS_UM_SC_20241213_v3) P440; MH300 Series User Manual (DELTA_IA-MDS_MH300_UM_TC_20260505) P674; MPD_MP300 Series User Manual (DELTA_IA-MDS_MPD_UM_SC_20260326) P332; MS300 Series User Manual (DELTA_IA-MDS_MS300_UM_TC_20260417_v2) P462
Series: VP3000
Parameter error during operation
AC motor drive
Meaning: An instruction set that cannot be parsed was detected during program execution.
Possible causes
- While the PLC program is running, when PLC executes
- Check the PLC program using D1014, then download the program again.
- 1.
- Check whether the FOR/NEXT command is written incorrectly.
- 2.
- Check whether MC/MCR is paired.
- 3.
- 4.
- 5.
- 6.
- Make sure the model supports all API code.
Source: VP3000 Series User Manual (DELTA_IA-MDS_VP3000_UM_TC_20250523) P435
Series: VP3000-E
Parameter error during operation
AC motor drive
Meaning: An instruction set that cannot be parsed was found during program operation
Possible causes
- While the PLC program is running, when PLC executes
- Check the PLC program using D1014, then download the program again
- 1.
- Check whether the FOR/NEXT command is written incorrectly.
- 2.
- Check whether MC/MCR is paired.
- 3.
- 4.
- 5.
- 6.
- Verify that the model supports all API code.
Source: VP3000-E & VP3000-EHS User Manual (DELTA_IA-MDS_VP3000-E-VP3000-EHS_UM_SC_20260306) P400