4 – 32 HEIDENHAIN Service Manual iTNC 530 HSCI
8B40 No drive
enabling %.2s
Inverter is not ready for operation
No pulse release for the power module
Uz too high
Power-fail signal is active
With M controls: I32 input inactive
With P controls: Drive release at X50 inactive
In addition, for 246 261-xx (digital current
controller):
For the given axis an illegal motor model
(e.g. linear motor) was selected.
The CC receives a "Drive on" command for a
non-existing axis.
The power module is not ready when the
field orientation starts.
Readiness of the power module is detected
through the Ready signal on the PWM cable.
The power module is not ready when the
current controller adjustment begins.
Motor control board defective
PWM cable defective
Noise pulses
Check the activation and wiring of the pulse
release.
Check Uz.
Check the emergency stop circuit.
For a non-regenerative system: Is the braking
resistor connected?
For a regenerative system: Is the energy
recovery activated?
Check the grounding and shielding of the cable.
Exchange the power module.
For SIEMENS power converter (inverter):
Exchange the interface card.
Exchange drive-control board.
Check the control and cabling of the pulse
release.
See ”Checking the enables on the iTNC 530
HSCI” on page 17 – 225.
See Service Manual Inverter Systems and
Motors.
8B50 Axis module
%.2s not ready
No pulse release for the power module
Uz too high
5-V power supply too weak
Inverter is not ready for operation
Motor control board defective
PWM cable defective
Noise pulses
Check the activation and cabling of the pulse
release.
Check Uz.
For a non-regenerative power supply unit: Is the
braking resistor connected?
If the power supply is regenerative: Is the
energy recovery activated?
Check the grounding and shielding of the cable.
Exchange the power module.
For
P c
ontrols: Exchange the interface card.
Exchange the motor drive-control board.
See ”Checking the enables on the iTNC 530
HSCI” on page 17 – 225.
See Service Manual Inverter Systems and
Motors.
8B60 Overcurrent
cutoff %.2s
Undervoltage, temperature, or short-circuit
monitor of an IGBT in the inverter has
responded.
Let the inverter cool down.
Check the motor connection for a short circuit.
Examine the motor for short circuit in the
windings.
Exchange the power module.
See ”Sequence for finding errors in the control
loop” on page 6 – 58.
See Service Manual Inverter Systems and
Motors.
Error message Possible cause of error Measures for error diagnosis and/or
corrective action
Additional information and descriptions
in the manual
Additional information and descriptions
in the manual
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