8107 Overcurrent

Description

Refer to Diagnostic class (standard): 3

Device reactions

Default reaction

Minimum reaction

Drive

AD

AD

Power supply

AP

AP

Multi carrier transport system

AD

–

  • The current through the power stage of the servo amplifier or in the DC bus of the power supply is too high. In contrast to the diagnostic messages 8120 Power stage overload and 8146 DC bus overload, the device is switched off immediately if the maximum current is exceeded.

  • An MH3 motor indicating a diagnostic message 8122 Shutdown due to velocity limit can also provoke the diagnostic message 8107 Overcurrent.

For the motor/drive system:

Cause

Solution

Detected wiring error: The shielding of the motor cable is not attached properly.

Verify and correct if necessary the wiring.

Servo amplifier: The current controller parameters are incorrect.

Verify the power control parameters Curr_P_Gain, Curr_I_Gain, and CurrFilter and set them to default if necessary.

Detected motor hardware error: The motor has a short-circuit.

Replace the motor.

Servo amplifier: The PowerStageFrequency is parameterized with 4 kHz.

  • The parameter VoltageFeedForwardMode must be set to the value Dynamic behavior of the control loop / 3.

  • Verify the parameters Vel_P_Gain, Vel_I_Gain, and Pos_P_Gain and adjust them if necessary, to avoid an instable behavior of the controller.

  • The current through the coil of the multi carrier segment is too high (> 1.3 * Ic_peak).

For the Multi carrier transport system:

Cause

Solution

The current control loop parameters are incorrect.

Verify the parameters, and set them to default if necessary.

Detected multi carrier hardware error: The segment has a coil short-circuit.

Replace the multi carrier segment.