YASKAWA L1000A Quick Start Manual page 45

Digital Operator AL FLT
Output Current
Error

(SE3)
Brake Response
Error

(SE4)
Motor Pull Out or
Step Out Detection

(STo)
Position Lock
Error

(SvE)
DC Bus
Undervoltage
 
(Uv1)
Control Power
Supply

Undervoltage
(Uv2)
Soft Charge
Circuit Fault

(Uv3)

Operator Programing Errors
An Operator Programming Error (
is inappropriate. When an oPE error is displayed, press the ENTER button to display U1-18. Monitor U1-18 will display
the parameter that is causing the oPE error.
Digital Operator
(oPE01) Drive capacity and the value set to o2-04 do not match.
(oPE02) Parameters were set outside the allowable setting range.
A contradictory setting is assigned to multi-function contact
inputs H1-03 through to H1-08.
• The same function is assigned to two multi-function inputs.
• Excludes "Brake feedback" and "Brake feedback 2."
• Brake Feedback (H1- = 79) or Brake Feedback 2 (H1-
(oPE03)
 = 5B) function is assigned to three or more multi-
function inputs.
• Motor contactor feedback and Motor contactor feedback 2
(56 vs. 5A) are selected simultaneously.
The source of the Up/Down command or speed reference is
assigned to option card (b1-01 or b1-02 = 3), but no option
(oPE05)
card is installed.
A control mode has been selected that requires an encoder to
(oPE06)
be installed, but no encoder is installed (A1-02 = 3 or 7).
H3-02 and H3-10 are set to the same value (this excludes
(oPE07)
settings 0 and F).
YASKAWA ELECTRIC TOEP C710616 33G AC Drive L1000A - Quick Start Guide
Possible Cause
The output current was lower than 25% of the motor
no-load current during operation.
The brake close command was set but he status of the
brake feedback signal did not change.
• The wrong motor code has been set (YASKAWA
motors only).
• Load is too heavy.
• Accel/decel ramp is too short.
The motor turned too much out of the target position
during position lock operation.
• The voltage in the DC bus fell below the undervoltage
detection level (L2-05).
• The power supply failed or one input phase has been
lost.
• The power supply is too weak.
The control power supply does not have enough
voltage.
The charge circuit for the DC bus is broken.
) occurs when an inapplicable parameter is set or an individual parameter setting
Possible Cause
Corrective Action
• Check the motor wiring.
• Check the motor contactor and the contactor
sequence. Make sure does not open during operation.
• Make sure the brake works properly.
• Check the brake feedback input.
• Enter the correct motor code for the PM being used
into the E5 parameters.
• For special-purpose motors, enter the correct data to
all E5 parameters according to the Test Report
provided for the motor.
• Reduce the load.
• Increase the motor or drive capacity.
• Increase the acceleration and deceleration times (C1-
01 through C1-08).
• Increase the jerk setting in C2-02 through C2-05
(decrease if o1-03 > 3).
• Check the speed control loop parameters (C5-)
and adjust if necessary.
• Check the position lock settings (S3-01/S3-02/S3-03).
• Check the speed feedback signal for noise.
• Check the power supply.
• Make sure that the power supply can provide enough
voltage.
• Cycle power to the drive. Check if the fault reoccurs.
• Replace the drive if the fault continues to occur.
• Cycle power to the drive and see if the fault reoccurs.
• Replace the drive if the fault reoccurs.
Corrective Action
Set to o2-04 to the correct value.
Set parameters to the proper values.
• Fix any incorrect settings.
• Refer to the Technical Manual for more details.
• Install the required option card.
• Correct the values set to b1-01 and b1-02.
• Connect an encoder.
• Correct the value set to A1-02.
• Fix any incorrect settings.
• Refer to the Technical Manual for more details.
8 Troubleshooting
EN 45