5-98
5-8 Restart Functions
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
5
Functions
A timing chart of Frequency Matching Restart (b001 = 02) is shown below.
t0: Momentary power interruption time
t1: Allowable Momentary Power Interruption Time (b002)
t2: Restart Standby Time (b003)
Example 1) When t0 < t1
Example 2) When t0 > t1
Example 3) Motor frequency (rotation speed) > b007
Example 4) Motor frequency (rotation speed) < b007
Power supply
Inverter output
Motor rotation
speed
Free run
t0 t2
t1
Power supply
Inverter output
Motor rotation
speed
Free run
t0
t1
Power supply
Inverter output
Motor frequency
(rotation speed)
Free run
t0 t2
Frequency matching restart
b007
0
Power supply
Inverter output
Motor frequency
(rotation speed)
Free run
t0 t2
0
b007
0 Hz restart