Yaskawa L1000E AC Drive Technical Manual for CIMR-LE Models for Elevator Applications - Manual (Page 143)

4.7 Setup Troubleshooting and Possible Solutions
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4.7 Setup Troubleshooting and Possible Solutions
This section describes troubleshooting problems that do not trip an alarm or fault.
◆ Cannot Change Parameter Settings
◆ Motor Does Not Rotate Properly after Pressing RUN Button or after Entering
External Up/Down Command
■ Motor Does Not Rotate
Symptom Page
Cannot Change Parameter Settings 143
Motor Does Not Rotate Properly after Pressing RUN Button or after Entering Exter-
nal Up/Down Command Motor Does Not Rotate 143
Motor Rotates in the Opposite Direction from the Up/Down Command 144
Motor Gets Too Hot 144
Drive Does Not Allow Selection of Rotational Auto-Tuning 144
Noise From Drive or Output Lines When the Drive is Powered On 144
Ground Fault Circuit Interrupter (GFCI) 144
Encoder Offset (E5-11) Set during Auto-Tuning (Rotational or Stationary) Consistently Differs by 30 Degrees or More 145
Riding comfort related problems 145
Cause Possible Solutions
The drive is running the motor (i.e., the Up/Down command is
present). • Stop the drive and switch over to the Programming Mode.
• Most parameters cannot be edited during run.
The Access Level is set to restrict access to parameter settings. • Set the Access Level to allow parameters to be edited (A1-01 = 2).
The operator is not in the Parameter Setup Mode.
• Verify the digital operator mode, Drive or Programming mode?
• Switch to the Programming Mode.
Refer to The Drive and Programming Modes on page 95 for details.
The wrong password was entered.
• 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 the password is unknown:
• Scroll to A1-04. Press and press at the same time. Parameter A1-05 will appear.
• Set a new password to parameter A1-05.
Undervoltage was detected.
• Check the drive main input voltage by looking at the DC bus voltage (U1-07).
• Check all main circuit wiring.
Cause Possible Solutions
The drive is not in the Drive Mode.
• Check if the DRV on the digital operator is displayed.
• Enter the Drive Mode.
Refer to The Drive and Programming Modes on page 95 .
The button is enabled (o2-01=1) and was pushed.
Stop the drive and check if the correct frequency reference source is selected. If the digital operator is 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 the button.
• o2-01 is set to 0 by default, i.e. the LO/RE button is disabled.
Auto-Tuning has just completed.
• When Auto-Tuning completes, the drive is switched back to the Programming Mode. The Up/Down command will
not be accepted unless the drive is in the Drive Mode.
• Use the digital operator to enter the Drive Mode. Refer to The Drive and Programming Modes on page 95 .
A Fast Stop was executed and is not reset. Reset the Fast Stop command.
Settings are incorrect for the source that provides the Up/Down
command.
Check parameter b1-02 (Up/Down Command Selection).
Set b1-02 so that it corresponds with the correct Up/Down command source.
0: Digital operator
1: Control circuit terminal (default setting)
2: MEMOBUS/Modbus communications
3: Option card
There is faulty wiring in the control circuit terminals.
• Check the wiring for the control terminal.
• Correct wiring mistakes.
• Check the input terminal status monitor (U1-10).
The speed reference source setting is incorrect.
Check parameter b1-01 (Speed Reference Selection).
Set b1-01 to the correct source of the speed reference.
0: Digital operator
1: Control circuit terminal (default setting)
2: MEMOBUS/Modbus communications
3: Option card
The settings for the analog speed reference are incorrect. Check the settings (signal level, function, bias, gain) for the analog input that supplies the speed reference.
STOP