Motor Does Not Rotate Properly After Pressing Run Button Or After Entering External Run Command - YASKAWA AC Drive-A1000 Technical Manual

Cause
The wrong password was entered.
Undervoltage was detected.
u
Motor Does Not Rotate Properly after Pressing RUN Button or after Entering External
Run Command
n
Motor Does Not Rotate
Cause
The drive is not in the Drive Mode.
was pushed.
Auto-Tuning has just completed.
A Fast Stop was executed and has
not yet been reset.
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.
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
• 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
• 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 digital operator is lit.
• Enter the Drive Mode to begin operating the motor.
Stop the drive and check if the correct frequency reference source is selected. If the operator keypad shall be the
source, the LO/RE button LED must be on. If the source is REMOTE, it must be off.
Take the following steps to solve the problem:
•
Push .
• If o2-01 is set to 0, then the LO/RE button will be disabled.
• 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 digital operator to enter the Drive Mode.
Reset the Fast Stop command.
Check parameter b1-02 (Run Command Selection).
Set b1-02 so that it corresponds with the correct Run command source.
0: Digital operator
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: Digital operator
1: Control circuit terminal (default setting)
2: MEMOBUS/Modbus communications
3: Option card
4: Pulse train input (RP)
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 DIP switch S1 parameter H3-08. If terminal A3 is used, check parameter H3-08.
to Terminal A2 Input Signal Selection on page
Check jumper S3. Refer to Sinking/Sourcing Mode Switch for Digital Inputs on page
• 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 input A1, A2, or A3 is set for frequency reference gain (H3-02, H3-10, H3-06 = 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, H3-10, and H3-06 have been set to the proper values.
• Check if the analog input value has been set properly. (U1-13 to U1-15)
6.10 Troubleshooting without Fault Display
Possible Solutions
STOP
and simultaneously. Parameter A1-05 will appear.
Possible Solutions
Refer to The Drive and Programming Modes on page
Refer to The Drive and Programming Modes on page
70.
84.
84.
6
Refer
68.
337