Before Making A Service Call; Trip Causes/Warnings And Remedies - Toshiba TOSVERT VF-nC1 Instruction Manual

13.

Before making a service call

13.1

Trip causes/warnings and remedies

When a problem arises, diagnose it in accordance with the following table. If it is found that
replacement of parts is required or the problem cannot be solved by any remedy described in the
table, contact your Toshiba dealer.
[Trip information: FL relay activated]
Error Alarm
Problem
code code
0001 Overcurrent during
acceleration
0025 Overcurrent flowing
in element during
acceleration
0002 Overcurrent during
deceleration
0026 Overcurrent flowing
in element during
acceleration
0003 Overcurrent during
operation
0027 Overcurrent flowing
in element during
acceleration
0005 Arm overcurrent at
start-up
0004 Overcurrent (An
overcurrent on the
load side at start-up)
000A Overvoltage during
acceleration
(Continued overleaf)
– Trip information and remedies
Possible causes
• The acceleration time
too short.
• The V/F setting is improper.
• A restart signal is input to the
rotating motor after a
momentary stop, etc.
• A special motor (e.g. motor with
a small impedance) is used.
• The deceleration time
too short.
• The load fluctuates abruptly.
• The load is in an abnormal
condition.
• A main circuit element is
defective.
• The insulation of the output
main circuit or motor is
defective.
• The motor has too small
impedance.
• The input voltage fluctuates
abnormally.
①The power supply has a
capacity of 200kVA or more.
②A power factor improvement
capacitor is opened or closed.
③A 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.
M-1
Remedies
• Increase the acceleration time
is
.
• Check the V/F parameter.
• Use
(auto-restart) and
(ride-through control).
• Increase or decrease the carrier
frequency .
• Increase the deceleration time
is
.
• Reduce the load fluctuation.
• Check the load (operated
machine).
• Make a service call.
• Check the cables and wires for
defective insulation.
• Insert a suitable input reactor.
• Use
(auto-restart) and
(ride-through control).
E6581090
13