Veichi Electric AC60 series, Manual

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inertia is too big；
3. Frequency inverter
capacity is too low； ；
3.Select frequency inverter with
proper capacity;
o.C.3
Over
current
at
constant
speed
1.Load change
suddenly；
2.Network voltage is
relatively low.
1. Check the load change
condition and eliminate it；
2.Check the input power；
o.U.1
Acc over
voltage
1.Supply voltage
overrun；
2. Restart the
machine in running
（ no tracking
start） ；
1.Check the network voltage ，
troubleshooting；
2. Restart after the machine
totally stop or set［E-30］as“2” ；
o.U.2
Dec over
voltage
1.Dec time is too
short；
2. Potential load or
inertia is too
big； ；
3. Supply voltage
overrun；
1. Lengthen deceleration time；
2. Decrease potential load, or
amplify the frequency inverter
capacity, or install more
braking unit;
3.Check the network voltage ，
troubleshooting；
o.U.3
Over
voltage
at
constant
speed
1.Supply voltage
overrun；
2.Input voltage is
abnormal
1.Check the network voltage ，
troubleshooting；
2.Install input reactor；
o.U.4
Close
down over
voltage
1.Supply voltage
overrun；
1. Check the network voltage，
troubleshooting；
2. Ask for technical support；