Chapter 8 Troubleshooting|VP3000 
460 
 
AI2 analog signal loss   
(AnL) 
Analog input current loss (including all analog 4–20 mA signals)   
When the analog input (Pr. G2-22 = 2) is lower than 3.6 mA (only detects analog 
input 4–20 mA)   
The action condition is attained for 0.1s 
Warning Setting Parameter 
G2-30 
AI2 signal loss action: 
0: Disable 
1: Warning & continue OPER   
2: Fault & Ramp to Stop 
3: Fault & Auto-Decel 
4: Fault & Coast to Stop 
5: Fault & by Quick Stop Time 
6: Warning & FREQ Lower Limit OPER 
It is “Warning” when Pr. G2-30 = 1, and the warning will be automatically 
cleared when the analog input signal is ≥ 4 mA. 
It is “Fault” when Pr. G2-30 = 2–5, which must be reset manually. 
It is “Fault” when Pr. G2-30 = 2–5 and will be recorded. 
Loose or broken AI2 wiring 
Tighten the terminals again. 
Replace with a new cable. 
If the AnL error still occurs after checking all the wiring, return to the factory for 
repair.