i550

Short circuit

Excessive capacitive charging
current in the motor cable.

• Search for cause of short circuit.

• Check motor cable.

  Use motor cable which is shorter
  or of lower capacitance.

One of the motor phases has
earth contact.

• Search for cause of short circuit.
• Check motor cable.

• Frequent and too long acceleration with overcurrent
• Continuous overload with I_motor > 1.05 x I_rx

Check drive dimensioning.

I²xt overload

• Frequent and too long acceleration processes with motor overcurrent.
• Permanent motor overload with I_motor >I_rmotor

Check drive dimensioning.

I²xt overload advance warning

• Frequent and too long acceleration processes with motor overcurrent.
• Permanent motor overload with I_motor >I_rmotor

Check drive dimensioning.

Overvoltage in DC bus

Braking energy is too high. (DC−bus voltage is higher than set in C0173.)

• Use braking unit or regenerative module.
• Check dimensioning of the brake resistance.

Undervoltage in the DC bus

DC bus voltage is lower than specified in C0173.

• Check mains voltage
• Check supply cable

cawc

• Continuous overcurrent on the inverter/ motor side.
• Overcurrent at the brake chopper (brake transistor).
• DC bus relay has not been closed due to a malfunction.

• Check motor and wiring for short circuits.
• Check brake resistor and wiring.
• Check motor switching.
• Check settings of the motor data.

Fault

• The inverter is disabled immediately. The motor has no torque (is coasting).
• The event can only be reset after a blocking time.

• Short circuit/earth fault of motor cable
• Capacitive charging current of the motor cable too high.

• Check motor cable.
• Check length of the motor cable.
• Use shorter or lower-capacitance motor cable.

Fault

• The inverter is disabled immediately. The motor has no torque (is coasting).
• The event can only be reset after a blocking time.

Short circuit of motor cable

Check motor cable for short circuit.

Fault

• The inverter is disabled immediately. The motor has no torque (is coasting).
• The event can only be reset after a blocking time.

Motor thermally overloaded, e. g. by an impermissible continuous current or by frequent or too long acceleration processes.

Check drive sizing.

• Check machine/driven mechanics for excessive load.
• Check settings of the motor data.
• Reduce values for slip compensation 0x2B09:001 (P315.01), 0x2B09:002 (P315.02) and oscillation damping 0x2B0A:001 (P318.01), 0x2B0A:002 (P318.02).

Fault (configurable)

• The event can only be reset after a blocking time.

Device utilisation (ixt) too high by frequent and too long acceleration processes.

Check drive sizing. 

• Reduce the maximum current of the inverter 0x6073 (P324.00). 
• In case of high mass inertias, reduce maximum current of the inverter 0x6073 (P324.00) to 150 %.

Fault (configurable)

• The event can only be reset after a blocking time.

Warning - Device utilization (ixt) too high

Device utilisation (ixt) too high by frequent and too long acceleration processes.

Check drive dimensioning.

Warning

Clamp responded too often

Maximum current of the axis (display in 0x2DDF:002) has been reached too often in succession.

• Select a flatter speed ramp.
• Reduce the load.
• Set Imax controller more dynamically.

Fault

SL-PSM stall detection active

Overload of the motor with sensorless control for synchronous motors (SL-PSM).

• Reduce load at the axis.
• Check settings of the SL-PSM parameters.

Trouble

• The inverter is disabled immediately. The motor has no torque (is coasting).

Maximum current reached

The actual current0x6078 (P103.00) is equal to or higher than the max. current 0x6073 (P324.00).

• Reduce the load on the motor or change the settings for the maximum current. 0x6073 (P324.00)

Information

Mains phase fault 

Mains phase failure

• Check wiring of the mains connection.
• Check fuses.

Fault

UPS operation active

Operation on uninterrupted 1x230V current supply (UPS) has been activated: Only a reduced output current is provided.

Switch back to operation with regular mains voltage

Warning

Fault - DC bus overvoltage

DC-bus voltage has exceeded the error threshold for overvoltage due to a too high braking energy or a too high mains voltage. The error threshold (display in 0x2540:006 (P208.06) results from the setting of the rated mains voltage in 0x2540:001 (P208.01).

Reduce dynamic performance of the load profile.

Check mains voltage.

Check settings for brake energy
management.

0x2541:001 (P706.01) = [0]: Connect brake resistor to the power unit and activate the integrated brake chopper

Fault

DC bus overvoltage warning

DC-bus voltage has exceeded the warning threshold for overvoltage set in 0x2540:005 (P208.05) due to a too high braking energy or a too high mains voltage.

• Reduce dynamic performance of the load profile.
• Check mains voltage.
• Check settings for brake energy management.
• 0x2541:001 (P706.01) = [0]: Connect brake resistor to the power unit and activate the integrated brake chopper.

Warning

Fault - DC bus undervoltage

DC-bus voltage has fallen below the error threshold for undervoltage. The error threshold (display in 0x2540:003 (P208.03)) results from the setting of the rated mains voltage in 0x2540:001 (P208.01).

• Check mains voltage.
• 0x2D87 (P105.00)Check DC-bus voltage.
• Check mains settings.
• Check fuses.

Trouble

DC bus undervoltage warning

DC-bus voltage has fallen below the warning threshold for undervoltage set in 0x2540:002 (P208.02).

• Check mains voltage.
• 0x2D87 (P105.00) Check DC-bus voltage.
• Check mains settings.
• Check fuses.

Warning

DC-bus voltage to low for power up

The input voltage is too low to switch on the inverter.

• Check mains voltage.
• Check mains settings.
• Check fuses.

Warning

Fault - Power unit overtemperature

The heatsink temperature of the power unit (display in 0x2D84:001 (P117.01)) has exceeded the fixed error threshold (100 °C).

• Ambient temperature too high.
• Fan or ventilation slots are polluted.
• Fan is defective.

• Check mains voltage.
• Provide for a sufficient cooling of the device. In case of a 100 % load, 60 C to +70°C are normal. Display of the heatsink temperature in 0x2D84:001 (P117.01).
• Clean fan and ventilation slots. If required, replace fan.
• Reduce switching frequency 0x2939 (P305.00)

Fault

Fault - Heat sink temperature sensor

Sensor for the temperature monitoring of the power unit is defective. The failure of the temperature monitoring function poses the risk of overheating!

Hardware error: it is necessary to contact the manufacturer, since the device must be replaced.

Fault