4 Start-Up Programming & Operation
YASKAWA ELECTRIC
TOEP C710616 38H YASKAWA AC Drive-L1000A Quick Start Guide
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Setup Troubleshooting and Possible Solutions
This section describes troubleshooting problems that do not trip an alarm or fault.
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Cannot Change Parameter Settings
Symptom
Page
Cannot Change Parameter Settings
Motor Does Not Rotate Properly after Pressing RUN Button or
after Entering External Up/Down Command
Motor Does Not Rotate
Motor Rotates in the Opposite Direction from the Up/Down
Command
Motor Gets Too Hot
Drive Does Not Allow Selection of Rotational Auto-Tuning
Encoder Offset (E5-11) Set During Auto-Tuning (Rotational or Stationary) Consistently Differs by 30 Degrees or More
Noise From Drive or Output Lines When the Drive is Powered On
The Safety Controller Does Not Recognize Safe Disable Monitor Output Signals (Terminals DM+ and DM-)
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
.
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.
STOP
TOEP_C710616_38H_7_0.book 129 ページ 2015年11月11日 水曜日 午後7時40分