Toshiba TOSVERT VF-S11 Instruction Manual page 254

(Continued)
Error code Failure code
000A
000B
000C
000D
000E
000F
* 0020
13
0010
* You can select a trip ON/OFF by parameters.
(Continued overleaf)
Problem
• The imput voltage fluctuates abnormally.
Overvoltage during
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.
• The deceleration time
Overvoltage during
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 op-
(1) The power supply has a capacity of
eration
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 be-
cause the load causes the motor to run at
a frequency higher than the inverter out-
put 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.
• The V/F setting is improper.
Motor overload
• The motor is locked up.
• Low-speed operation is performed con-
tinuously.
• An excessive load is applied to the motor
during operation.
• The deceleration time is too short.
Dynamic braking re-
• Dynamic braking is too large.
sistor
overload trip
• Over-torque reaches to a detection level
Over-torque trip
during operation.
• The cooling fan does not rotate.
Overheat
• 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
M-2
E6581158
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 resis-
tor).
• Enable
(overvoltage limit opera-
tion).
• 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 capac-
ity parameter .
• Enable
(over-torque trip selec-
tion).
• 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.
.
.
.
.