RAC / TDA / KDA spindle drives fault codes & diagnostics

Power output locked

The drive is torque-free and the power output is locked.

Emergency stop

The drive is shut down and torque-free.

Spindle reference search

The drive is searching for the spindle reference signal or a feedback zero pulse. Listed in section 2 as an operating state. A separate fault entry with the same display text appears in section 3.

Position reached

The spindle or rotor has reached its position command within the tolerance window.

DC-bus voltage low

The DC-bus voltage is below the operating threshold; the drive is not ready.

Drive enable absent

The drive-enable signal has not been issued.

Run command inactive

The command value is internally disabled and the drive is held at zero velocity.

Speed command reached

Motor speed is within the configured tolerance of the speed command.

Speed outside command tolerance

Motor speed differs from the speed command beyond the configured tolerance. The printed code uses a literal asterisk; it has not been replaced by a not-equal symbol.

Speed below minimum

Motor speed is below the configured minimum-speed value.

Speed oscillation active

The drive is oscillating its speed to support a gear change.

Position command in progress

The drive has received a position command and is moving to the commanded position.

Slave torque control

The drive is configured as a slave and is operating in torque control.

Moving to synchronous position

The drive is moving toward the angular synchronous position.

Synchronous position reached

The drive is within its selected positioning window.

Heatsink temperature warning

The drive-controller heatsink is approaching shutdown temperature.

Motor temperature warning

Motor temperature has reached the warning threshold.

Waiting for renewed drive enable

The drive is waiting for a renewed drive-enable signal.

Master zero pulse absent

The master-encoder zero pulse has not arrived during spindle synchronization.

Bleeder overload

The bleeder monitor indicates overheating, an absent bleeder, or a defective bleeder.

Bridge fuse

The electronic-fuse current limit was exceeded.

Error in digital/analogue converter

A digital-to-analogue converter error is indicated on the CDR card.

Program error

A program error is indicated.

Program error

A program error is indicated.

Incorrect software/drive controller combination

The software and drive-controller combination is incorrect.

Incorrect software/drive controller combination

The software and drive-controller combination is incorrect.

DC bus not charging correctly

The DC bus does not charge properly after the power contactor closes.

Ground fault

A ground fault is indicated in the motor cable or DC bus.

Programming error in parameter memory

The programming-module EEPROM is absent or defective.

Loss of data in program memory

The EPROM program-memory contents have changed.

Motor encoder error

The feedback parameter does not match the motor, or the feedback cable is wrong or defective.

Gear switching error

Gear switching failed, or the gear-step acknowledgement is missing or late.

Reference impulse search

The spindle reference signal or feedback zero pulse has not arrived. Listed in section 3 as a fault. The manual states that fault displays flash and the red FAULT lamp lights. A separate operating-state entry with identical text appears in section 2.

Parameter M17 incorrectly programmed

Parameter M17 does not agree with the drive-controller rated current. Spacing and angle brackets follow the source display label. Whitespace-insensitive searching may be useful.

Parameter M06 incorrectly programmed

Parameter M06 exceeds the drive rated current.

Heatsink overtemperature

The drive-controller heatsink is too hot and the controller has shut down.

Motor overtemperature

Motor-winding temperature reached the shutdown threshold.

Motor switching error

The motor-contactor changeover acknowledgement is missing or late.

No mains voltage

Mains voltage is absent or too low.

Error in motor temperature detector

The motor-thermistor connection is interrupted or the thermistor is defective.

8 V control voltage faulty

The internal 8 V supply is disrupted.

15 V control voltage faulty

The internal ±15 V supply is disrupted.

24 V control voltage faulty

The internal 24 V control supply is disrupted.

Incorrect software-drive controller combination

The software and drive-controller combination is incorrect.

External control supply fault

The external control and signal-output supply is absent, incorrectly polarized, or outside its tolerance range.

Parameter M17 incorrectly programmed

Parameter M17 is incorrectly programmed.

Parameter M17 incorrectly programmed

Parameter M17 is incorrectly programmed.

Parameter M17 incorrectly programmed

Parameter M17 is incorrectly programmed.

Parameter M17 incorrectly programmed

Parameter M17 is incorrectly programmed.

Parameter M17 incorrectly programmed

Parameter M17 is incorrectly programmed.

Program error

A program error is indicated.

Overvoltage

Mains voltage exceeds the nominal connection voltage by more than 15 percent.

Data loss in parameter storage

The programming module contains no stored parameter values.

Mains phase fault

The source describes a missing phase or incorrect phase sequence; for RAC 3 it specifies phase failure only. The source margin says 'only with RAC 3', while the body also mentions phase-sequence failure generally and qualifies RAC 3 as phase failure only. Do not broaden applicability beyond the margin without another source.

Positioning error

The spindle-positioning lag monitor detected failure to follow the position command.

Error in data memory

The drive-controller RAM memory check failed.

RSK printed circuit board not working

The RSK board is not working.

Overcurrent during feedback

The source reports overcurrent during feedback.

Short circuit in motor cable

A motor-cable short circuit is indicated.

Spindle encoder monitor

No information is received from the spindle-position encoder.

Incorrect drive controller configuration

Two-motor changeover was configured together with an incremental-encoder interface.