Siemens SINUMERIK 840Di Diagnostic Manual page 861

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Second axis defined as single-axis module by SERVO.

The NC has attempted to activate the second axis on a single-axis module. Possible

communication failures on the drive bus or control module defective.

Replace the control module. Check cable connections, perform remedial measures

(check shielding or ground connection).

Two active axes: At least one is defined as single-axis module by SERVO

The NC has attempted to activate the second axis on a single-axis module, possible

communication failures on the drive bus or control module defective.

Replace the control module. Check cable connections, perform remedial measures

(check shielding or ground connection).

PCU-ASIC for motor measurement systems missing for at least one axis.

The motor measuring system is either not fitted or is defective for at least one

axis of the drive module. As the configuration of the measuring systems is

detected by the NC and communicated to the drive, communication failures on

the drive bus can also cause this error

Replace the control module. Check cable connections, perform remedial measures

(check shielding or ground connection).

Incorrect IPU_submodule is plugged into the motor measurement system.

Read K1C register of the relevant PCU ASIC.

NC drive number

The motor measuring system has a motor encoder with a voltage output. A correspond-

ing IPU submodule with a voltage input is required. An unexpected submodule has been

Replace the control module. Check cable connections, perform remedial measures

(check shielding or ground connection).

SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition

Error Codes of Alarm 300500

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