Below are the timing charts for the restart. 
t0: Momentary power interruption time 
t1: Allowable Power Interruption Time (b002) 
t2: Restart Standby Time (b003) 
(Example 1) t0 < t1 (b001=02 or 04) 
 
Power supply 
 
Inverter output 
 
Motor rotation 
speed 
 
 
 
 
t0  t2 
t1 
 
Free-run 
 
 
 
Frequency pull-in restart 
(Example 2) t0 > t1 (b001=02 or 04) 
 
Power supply 
 
Inverter output 
 
Motor rotation 
speed 
 
 
 
(Example 3) Frequency at shutoff (rotation speed) > b007 (b001=02) 
 
Power supply 
 
Inverter output 
 
 
Motor frequency 
(rotation speed) 
 
Free-run 
 
 
b007 
0
 
t0  t2 
Frequency matching restart
(Example 4) Frequency at shutoff (rotation speed) < b007 (b001=02) 
 
Power supply 
 
Inverter output 
 
Motor frequency 
(rotation speed) 
 
 
b007
           
t0   t2      0-Hz restart 
  
 0-Hz restart