Applicable Systems
DVP
AH500
AS300
C2000
MS300
Symptoms
An SPD instruction is not properly paired. The speed detection function cannot operate.
Possible Causes
- SPD instruction missing its corresponding pair
- SPD instruction was partially deleted
Troubleshooting Steps
- Step 1: Locate the unpaired SPD instruction in the program
Unpaired SPD instruction is identified - Step 2: Add the missing pair or remove the orphaned SPD instruction
Program compiles without error
How to Reset
To reset: Pair the SPD instruction correctly or remove it, then recompile and download.
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Source: Delta DVP PLC Programming Manual, Delta Electronics
Category: PLC & VFD
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