Toshiba TOSVERT VF-S11 Instruction Manual page 78

(Continued)
Error code Failure code
000A
000B
000C
000D
000E
000F
* 0020
0010
* You can select a trip ON/OFF by parameters.
(Continued overleaf)
Problem
Overvoltage during • The imput voltage fluctuates abnormally.
acceleration
(1) The power supply has a capacity of
200kVA or more.
(2) A power factor improvement capacitor is
opened or closed.
(3) A system using a thyrister is connected
to the same power distribution line.
• A restart signal is input to the rotating
motor after a momentary stop, etc.
Overvoltage during • The deceleration time
deceleration
(Regenerative energy is too large.)
•
•
off.
• The input voltage fluctuates abnormally.
(1) The power supply has a capacity of
200kVA or more.
(2) A power factor improvement capacitor is
opened and closed.
(3) A system using a thyrister is connected
to the same power distribution line.
• The input voltage fluctuates abnormally.
Overvoltage during
constant-speed
(1) The power supply has a capacity of
operation
200kVA or more.
(2) A power factor improvement capacitor is
opened or closed.
(3) A system using a thyrister is connected
to the same power distribution line.
• The motor is in a regenerative state
because the load causes the motor to run
at a frequency higher than the inverter
output frequency.
• The acceleration time ACC is too short.
Inverter overload
• The DC braking amout is too large.
• The V/F setting is improper.
• A restart signal is input to the rotating
motor after a momentary stop, etc.
• The load is too large.
Motor overload • The V/F setting is improper.
• The motor is locked up.
• Low-speed operation is performed
continuously.
• An excessive load is applied to the motor
during operation.
• The deceleration time is too short.
Dynamic braking
resistor • Dynamic braking is too large.
overload trip
• Over-torque reaches to a detection level
Over-torque trip
during operation.
Overheat • The cooling fan does not rotate.
• The ambient temperature is too high.
• The vent is blocked up.
• A heat generating device is installed close
to the inverter.
• The thermistor in the unit is broken.
Possible causes
is too short.
(dynamic braking resistor) is off.
(overvoltage limit operation) is
77
E6581160
Remedies
• Insert a suitable input reactor.
• Use
(auto-restart) and
(ride-through control).
• Increase the deceleration time
• Install a dynamic braking resistor.
• Enable
(dynamic braking
resistor).
• Enable
(overvoltage limit
operation).
• Insert a suitable input reactor.
• Insert a suitable input reactor.
• Install a dynamic braking resistor.
• Increase the acceleration time
• Reduce the DC braking amount
and the DC braking time
• Check the V/F parameter setting.
• Use
(auto-restart) and
(ride-through control).
• Use an inverter with a larger rating.
• Check the V/F parameter setting.
• Check the load (operated machine).
• Adjust
to the overload that the
motor can withstand during operation in a
low speed range.
• Increase the deceleration time
• Increase the capacity of dynamic braking
resistor (wattage) and adjust PBR
capacity parameter .
• Enable
(over-torque trip
selection).
• Check system error.
• Restart the operation by resetting the
inverter after it has cooled down enough.
• The fan requires replacement if it does
not rotate during operation.
• Secure sufficient space around the
inverter.
• Do not place any heat generating device
near the inverter.
• Make a service call.
.
.
9
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