YASKAWA V1000 MMD User Manual

ENGLISH
7 Troubleshooting
YASKAWA Europe TOEP C710606 101A - V1000 MMD IP65 Motor Mounted Drive - Quick Start Guide EN 43
7 Troubleshooting
 General Fault and Alarms
Faults and alarms indicate problems in the drive or in the machine.
An alarm is indicated by a code on the data display and the flashing ALM LED. The drive
output is not necessarily switched off.
A fault is indicated by a code on the data display and the ALM LED is on. The drive output
is always switched off immediately and the motor coast to stop.
To remove an alarm or reset a fault, trace the cause, remove it and reset the drive by pushing
the Reset key on the operator or cycling the power supply.
This lists up the most important alarms and faults only. Please refer to the Technical Manual
for a complete list.
LED Display AL FLT Cause Corrective Action
Base Block

The software base block function is assigned
to one of the digital inputs and the input is
off. The drive does not accept Run com-
mands.
• Check the digital inputs function selection.
• Check the upper controller sequence.
Control Fault

The torque limit was reached during deceler-
ation for longer than 3 sec. when in Open
Loop Vector control
• The load inertia is too big.
• The motor parameters are wrong.
• Check the load.
• Check the motor parameters.
Control Circuit
Fault

There is a problem in the drive’s control cir-
cuit.
• Cycle the drive power supply.
• Initialize the drive.
• Replace the drive if the fault occurs again.
Control Circuit
Fault

There is no terminal board connected to the
control board.
• Check if the terminal board is installed
properly.
• Uninstall and Reapply the terminal board.
• Change the drive.
Cannot Reset

Fault reset was input when a Run command
was active.
Turn off the Run command and reset the
drive.
Option
External Fault

An external fault was tripped by the upper
controller via an option card.
• Remove the fault cause, reset the fault and
restart the drive.
• Check the upper controller program.
External Faults

• An external fault was triggered by an exter-
nal device via one of the digital inputs S1
to S6.
• The digital inputs are set up incorrectly.
• Find out why the device tripped the EF.
Remove the cause and reset the fault.
• Check the functions assigned to the digital
inputs.
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YASKAWA V1000 MMD Specifications

General

Series	V1000
Model	MMD
Input Voltage	200-240 VAC, 380-480 VAC
Output Power	0.4 kW to 315 kW
Control Method	V/f control
Protection Features	Overcurrent, Overvoltage, Undervoltage, Short circuit