Motor Rotates In The Opposite Direction From The Run Command - YASKAWA V1000 Series Installation & Start-Up Manual

5.9 Troubleshooting without Fault Display
Cause
Multi-function analog input is set up to
accept gain for the frequency reference,
but no voltage (current) has been
provided.
The STOP button was pressed when the
drive was started from a REMOTE
source.
Motor is not producing enough torque in
the V/f motor control method.
Motor is not producing enough torque in
Open Loop Vector Control.
The drive is set for both 2-wire and
3-wire sequence at the same time.

Motor Rotates in the Opposite Direction from the Run Command

■
Cause
Phase wiring between the drive and motor
is incorrect.
230
• Check the multi-function analog input settings.
• Check if analog input A1 or A2 is set for frequency reference gain
(H3-02/10 = 1). If so, check if the correct signal is applied to the
terminal. The gain and the frequency reference will be 0 if no signal is
applied to the gain input.
• Check if H3-02 and H3-10 have been set to the proper values.
• Check if the analog input value has been set properly.
• When the STOP button is pressed, the drive will decelerate to stop.
• Switch off the run command and then re-enter a run command.
• The STOP button is disabled when o2-02 is set to 0.
• 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).
• 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 a 3-wire sequence when one of parameters H1-03
through H1-07 is set to 0.
• If the drive is supposed to be set up for a 2-wire sequence, then ensure
parameters H1-03 through H1-07 are not set to 0.
• If the drive is supposed to be set up for a 3-wire sequence, then
H1-
• Check the motor wiring.
• Switch two motor cables (U, V, and W) to reverse motor direction.
• Connect drive output terminals U/T1, V/T2 and W/T3 in the right order
to the corresponding motor terminals U, V, and W.
YASKAWA ELECTRIC TOEP C710606 09B YASKAWA AC Drive V1000 Installation & Start-Up Manual
Possible Solutions
must be set to 0. Refer to
Possible Solutions
Table 5.2 for additional information.