Toshiba TOSVERT VF-MB1 Instruction Manual page 335

Industrial inverter for 3-phase induction motors
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(Continued)
Error code
Failure code
000B

000C

000D

000E

003E

000F

*
0020
13

0041

* This marking trips can be selected valid or invalid by parameters.
Problem
Overvoltage during
 The deceleration time  is too short.
deceleration
(Regenerative energy is too large.)
 Overvoltage limit operation  is set
to 1. (Disabled).
 The input voltage fluctuates abnormally.
(1) The power supply has a capacity of
500kVA or more.
(2) A power factor improvement capacitor is
opened and closed.
(3) A system using a thyristor is connected
to the same power distribution line.
Overvoltage during
 The input voltage fluctuates abnormally.
constant-speed
(1) The power supply has a capacity of
operation
500kVA 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.
Inverter overload
 The acceleration time ACC is too short.
 The DC braking amount 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.
Main module
 The carrier frequency is high and load
overload
current has increased at low speeds
(mainly at 15Hz or less).
Dynamic braking
 The deceleration time is too short.
resistor overload trip
 Dynamic braking is too large.
Over-torque trip 1
 Over-torque reaches to a detection level
during operation.
Over-torque trip 2
 Output current reached f601 or more
and maintain in f452 during power
running.
 Power torque reached f441 or more
and maintain in f452 during power
running.
Possible causes
 Increase the deceleration time .
 Set overvoltage limit operation  to
 Insert a suitable input reactor.
 Insert a suitable input reactor.
 Install an optional dynamic braking
 Increase the acceleration time .
 Reduce the DC braking amount 
 Check the V/F parameter setting.
 Use  (auto-restart) and 
 Use an inverter with a larger rating.
 Check the V/F parameter setting.
 Check the load (operated machine).
 Adjust  to the overload that the
 Raise the operation frequency.
 Reduce the load.
 Reduce the carrier frequency.
 When an operating motor is started up at
 Set carrier frequency control mode
 Increase the deceleration time .
 Increase the capacity of dynamic braking
 Enable  (over-torque trip selection).
 Check system error.
 Reduce the load.
 Increase the stall prevention level or
M-2
E6581697
Remedies
0, 2, 3.
module.
and the DC braking time .
(ride-through control).
motor can withstand during operation in a
low speed range.
0Hz, use the auto-restart function.
selection f316 to 1 (carrier frequency
with automatic reduction).
resistor (wattage) and adjust PBR
capacity parameter .
power running torque limit level.
(Continued overleaf)

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