Yaskawa J1000 Compact V/f Control Drive - Manual (Page 153)

Cause Possible Solutions
The
STOP
button was pressed when
the drive was started from a REMOTE
source.
•
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.
Motor is not producing enough torque.
• Ensure the selected V/f pattern corresponds with the characteristics of
the motor being used.
• 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).
Increase the torque compensation gain (C4-01).
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 the parameters H1-03
through H1-05 is set to 0.
• If the drive is supposed to be set up for a 2-Wire sequence, then ensure
parameters H1-03 through H1-05 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.
n Motor Rotates in the Opposite Direction from the Run Command
Cause Possible Solutions
Phase wiring between the drive and
motor is incorrect.
• 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.
• Change the setting of parameter b1-14.
The forward direction for the motor is
setup incorrectly.
Typically, forward is designated as being counterclockwise when looking
from the motor shaft (refer to the figure below).
1
2
1. Forward Rotating Motor (looking down the motor shaft)
2. Motor Shaft
Note: Check the motor specifications for the forward and reverse directions. The motor specifications will vary
depending on the manufacturer of the motor.
5.8 Troubleshooting without Fault Display
YASKAWA ELECTRIC TOEP C710606 26D YASKAWA AC Drive – J1000 Quick Start Guide 153
5
Troubleshooting