Alpha ALPHA6000 Series, Руководство пользователя

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Chapter6 Troubleshooting
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191
Fault
display
Name of
protection
Possible reasons of fault Actions
OC2
Over current
in Dec process
● Too short decelerating
time
● Inertia torque of the
load is big.
● Too low ac drive’s
power
● Output load of the ac
drive is short circuited
● Increase decelerate time
● Add appropriate braking
component
● Select a high-power ac
drive
● Check resistance of the
motor’s winding; check
insulation of the motor
OC3
Over current
in
constant-speed
Operation
● Abnormity Load
● Too short accelerating/
decelerating time setting
● Low voltage of power
supply
● Too low ac drive’s
power
● Output load of the ac
drive is short circuited
● Check the load
● Add accelerate/decelerate
time properly
● Check input power supply
● Select the ac drive with
higher power
● Check resistance of the
motor’s winding; check
insulation of the motor
Ou1
Over Voltage
in acceleration
process
● Abnormity Input
voltage
● Too short accelerating
time setting
● Check input power
supply/ the setting of
detection level
● Increase accelerating
time.
Ou2
Over voltage
in
deceleration
process
● Abnormity input
voltage
● Too short decelerating
time setting
● Inertia torque of the
load is big
● Check input power
supply/ the setting of
detection level
● Increase decelerating time
properly
● Add appropriate braking
component
Ou3
Over voltage
in constant
speed
Operation
● Abnormity input
voltage
● Too short accelerating/
decelerating time setting
● Inertia torque of the
load is big
● Check input power
supply/ the setting of
detection level
● Increase decelerating time
properly
● Add appropriate braking
component