Delta VP3000 Series - 8-1-3 PLC Fault Codes

Chapter 8 Troubleshooting｜VP3000
398
8-1-3 PLC Fault Codes
Code
ID
Descriptions
Corrective Actions
PLod
50
The device number in the
downloaded program has
exceeded the defined range
Check if the device number used by the
program has exceeded the model definition 1
and re-download the program
PLSv
51
Device number write error during
program execution
Check the PLC program with D1014 and re-
download the program
PLdA
52
The read/ write device number or
the uploaded command error
during Modbus communication
Check if the used communication address is
correct and retransmit the communication
packet
PLFn
53
Command error while downloading
program
Check whether the used API model supports
the command and re-download the program
PLor
54
Program exceeds memory capacity
during program execution
Check if the PLC program is correct and re-
download the program
PLFF
55
Command error during program
execution
Check the PLC program with D1014 and re-
download the program
1. If the FOR/NEXT command is written
correctly
2. Is MC/ MCR paired
3. If the break command is written correctly
4. If the FOR/NEXT command is written
correctly
5. If the break command is written correctly
6. Ensure the used model supports all API
codes
PLSn
56
Checksum error during program
execution
Clear the current PLC program and re-
download the program
PLEd
57
Program has no END stop
command
Check if the PLC program is correct and re-
download the program
PLdF
59
Communication loss or the drive
power off while downloading the
program
Check if the connection and the power supply
is normal and re-download the program
PLSF
60
PLC scan time-out during program
execution
Check if the PLC program uses excessive
FOR and CALL commands, reduce the
usage and re-download the program.