Motor Does Not Rotate Properly After Pressing Auto Button Or After Entering External Run Command - YASKAWA Z1000 User Manual

5.10 Troubleshooting without Fault Display
Cause
The wrong password was entered.
Undervoltage was detected.
u
Motor Does Not Rotate Properly after Pressing AUTO Button or after Entering External
Run Command
n Motor Does Not Rotate
Cause
The drive is not in the Drive Mode.
The HAND button was pressed.
Auto-Tuning has just completed.
A Fast Stop was executed and has not yet been reset. Reset the Fast Stop command.
Settings are incorrect for the source that provides the
Run command.
There is faulty wiring in the control circuit terminals.
The drive has been set to accept the frequency
reference from the incorrect source.
The terminal set to accept the main speed reference is
set to the incorrect voltage and/or current.
Selection for the sink/source mode and the internal/
external power supply is incorrect.
Frequency reference is too low.
Multi-function analog input is set up to accept gain
for the frequency reference, but no voltage (current)
has been provided.
The OFF button was pressed when the drive was
started from a REMOTE source.
Motor starting torque is too low.
236
• If the password entered to A1-04 does not match the password saved to A1-05, then drive
settings cannot be changed.
• Reset the password.
If you cannot remember the password:
• Scroll to A1-04. Press the OFF and Up Arrow buttons simultaneously. Parameter A1-05 will
appear.
• Set a new password to parameter A1-05.
• Check the drive input power voltage by looking at the DC bus voltage (U1-07).
• Check all main circuit wiring.
• Check if the DRV light on the HOA keypad is lit.
• Enter the Drive Mode to begin operating the motor.
Clock Adjustment Modes on page
Stop the drive and check if the correct frequency reference source is selected. If the operator keypad
shall be the source, the HAND button LED must be on. If the source is REMOTE, it must be off.
Take the following steps to solve the problem:
• Press the HAND button.
• When Auto-Tuning completes, the drive is switched back to the Programming Mode. The Run
command will not be accepted unless the drive is in the Drive Mode.
• Use the HOA keypad to enter the Drive Mode.
Adjustment Modes on page
Check parameter b1-02 (Run Command Selection).
Set b1-02 so that it corresponds with the correct Run command source.
0: HOA keypad
1: Control circuit terminal (default setting)
2: MEMOBUS/Modbus communications
3: Option card
• Check the wiring for the control terminal.
• Correct wiring mistakes.
• Check the input terminal status monitor (U1-10).
Check parameter b1-01 (Frequency Reference Selection 1).
Set b1-01 to the correct source of the frequency reference.
0: HOA keypad
1: Control circuit terminal (default setting)
2: MEMOBUS/Modbus communications
3: Option card
If the frequency reference is set at terminal A1, check parameter H3-01 for the correct signal level
selection. If terminal A2 is used, check parameter H3-09.
Terminals A1 and A2 on page
Check wire jumper connection between terminals SC and SP.
for Digital Inputs on page 92.
• Check the frequency reference monitor (U1-01).
• Increase the frequency by changing the maximum output frequency (E1-09).
• Check the multi-function analog input settings.
• Check if analog inputs A1 or A2 are set for frequency reference gain (H3-02, H3-10 = 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. (U1-13 and U1-14)
• Pressing the OFF button will decelerate the drive to stop.
• Switch off the Run command and then re-enter a new Run command.
• Set o2-02 to 0 to disable the OFF button.
Refer to Motor Performance Fine-Tuning on page
YASKAWA TOEP YAIZ1U 03B YASKAWA AC Drive – Z1000 User Manual
Possible Solutions
Possible Solutions
Refer to The Drive, Programming, and
106.
Refer to The Drive, Programming, and Clock
106.
Refer to Input Signal Selection for
93.
194.
Refer to Sinking/Sourcing Mode