YASKAWA V1000 Series Installation & Start-Up Manual

5.10 Detailed Troubleshooting
250 YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
■ Motor Rotates in the Opposite Direction from the Run Command
Motor is not producing enough torque in
the V/f motor control method.
• Ensure the selected V/f pattern corresponds with the characteristics of
the motor being used.
• Set the correct V/f pattern to E1-03.
• When E1-03 = F, increase both the minimum and mid output
frequency voltages (E1-08, E1-10).
Increase the frequency reference so that it is higher than the minimum
frequency reference (E1-09).
Perform Line-to-Line Resistance Auto-Tuning when using particularly
long motor cables.
Increase the torque compensation gain (C4-01).
Motor is not producing enough torque in
Open Loop Vector Control.
• Execute Rotational Auto-Tuning.
• If the motor cables are replaced with longer cables after Rotational
Auto-Tuning was performed, Auto-Tuning may need to be repeated
due to voltage drop across the line.
• Check if the torque limit parameters have been set too low (L7-01
through L7-04).
• Reset the torque limit back to its default setting (200%).
Increase both the minimum and mid output frequency voltages
(E1-08 and E-10).
The drive is set for both 2-wire and
3-wire sequence at the same time.
• The drive is set for a 3-wire sequence when one of parameters H1-01
through H1-07 is set to 0.
• If the drive is supposed to be set up for a 2-wire sequence, then ensure
parameters H1-01 through H1-07 are not set to 0.
• If the drive is supposed to be set up for a 3-wire sequence, then
H1- must be set to 0. Refer to Figure 5.2 for additional
information.
Cause Possible Solutions
Phase wiring between the drive and motor
is incorrect.
• Check the motor wiring.
• Two different motor phases may be accidentally connected to the same
terminal. Check the motor line connections.
• Connect drive output terminals U/T1, V/T2 and W/T3 in the right order
to the corresponding motor terminals U/T1, V/T2 and W/T3.
• Correct wiring mistakes.
Cause Possible Solutions

YASKAWA V1000 Series Specifications

General

Model	V1000 Series
Series	V1000
Output Frequency	0.1 to 400 Hz
Overload Capacity	150% for 60 seconds
Type	AC Drive
Control Method	V/f Control
Input Voltage	200-240V, 380-480V
Output Voltage	0 to Input Voltage
Power Range	0.1 to 18.5 kW
Horsepower	0.2 to 25 HP
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheating, Short Circuit, Ground Fault
Communication Interfaces	Modbus RTU
Enclosure	IP20
Ambient Temperature	-10 to +50°C
Storage Temperature	-20 to +60°C
Humidity	5 to 95% RH (non-condensing)
Cooling Method	Fan Cooled