YASKAWA HV600 Installation & Startup page 125

Code Name
Note:
• The drive detects this fault if the electronic thermal protector of the drive started the drive overload protection.
• Do a Fault Reset to clear the fault.
• L5-07 [Fault Reset Enable Select Grp1] disables the Auto Restart function.
Code Name
oL3 Overtorque Detection 1
Note:
• The drive detects this fault if the drive output current is more than the level set in L6-02 for longer than L6-03.
• Do a Fault Reset to clear the fault.
• If the drive detects this fault, it will operate the motor as specified by the Stopping Method set in L6-01 [Torque Detection Selection 1].
• L5-07 [Fault Reset Enable Select Grp1] disables the Auto Restart function.
Code Name
oL4 Overtorque Detection 2
Note:
• The drive detects this fault if the drive output current is more than the level set in L6-05 for longer than L6-06.
• Do a Fault Reset to clear the fault.
• If the drive detects this fault, it will operate the motor as specified by the Stopping Method set in L6-04 [Torque Detection Selection 2].
• L5-07 [Fault Reset Enable Select Grp1] disables the Auto Restart function.
Code Name
oL7 High Slip Braking Overload
Note:
• The drive detects this fault if the output frequency is constant for longer than n3-04.
• Do a Fault Reset to clear the fault.
Code Name
oPr Keypad Connection Fault
Note:
• The drive detects this fault if these conditions are correct:
–o2-06 = 1 [Keypad Disconnect Detection = Enabled].
–b1-02 = 0 [Run Command Selection 1 = Keypad], or the drive is operating in HAND Mode with the keypad.
• Do a Fault Reset to clear the fault.
YASKAWA TOEPYAIH6B01A HV600 AC Drive Narrow Bypass Installation & Startup
Causes
The torque compensation gain is too large.
The speed search-related parameters are set
incorrectly.
Phase loss in the input power supply is causing the
output current to change.
Overload occurred during overexcitation deceleration. • Decrease the value set in n3-13 [OverexcitationBraking (OEB)
Causes
A fault occurred on the machine.
Example: The machine is locked.
The parameters are incorrect for the load.
Causes
A fault occurred on the machine.
Example: The machine is locked.
The parameters are incorrect for the load.
Causes
The load inertia is too large.
An external force on the load side rotated the motor.
Something is preventing deceleration on the load
side.
The value set in n3-04 [HSB Overload Time] is too
small.
Causes
The keypad is not securely connected to the
connector on the drive.
The connection cable between the drive and the
keypad is disconnected.
Possible Solutions
Decrease the value set in C4-01 [Torque Compensation Gain] to
make sure that the motor does not stall.
• Examine the settings for all speed search-related parameters.
• Adjust b3-03 [Speed Search Deceleration Time].
• Set b3-24 = 1 [Speed Search Method Selection = Speed
Estimation] after Auto-Tuning.
• Correct errors with the wiring for main circuit drive input power.
• Make sure that there is no phase loss, and repair problems.
Gain].
• Decrease the value set in n3-21 [HSB Current Suppression
Level].
Possible Solutions
Examine the machine and remove the cause of the fault.
Adjust L6-02 [Torque Detection Level 1] and L6-03 [Torque
Detection Time 1] settings.
Possible Solutions
Examine the machine and remove the cause of the fault.
Adjust L6-05 [Torque Detection Level 2] and L6-06 [Torque
Detection Time 2] settings.
Possible Solutions
Decrease deceleration times in C1-02 and C1-04 [Deceleration
Times] for applications that do not use High Slip Braking.
• Increase the value set in n3-04.
• Connect a thermal overload relay to the motor, and set n3-04 =
1200 s (maximum value).
Possible Solutions
Examine the connection between the keypad and the drive.
• Remove the keypad and connect it again.
• If the cable is damaged, replace it.
5.5 Faults
5
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