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KUKA Error 1446 — VALUE ASSIGNMENT NOT ALLOWED

Error

Displayed as KSS01446 on KRC4 / KRC5 controllers

KUKA 1446 (“VALUE ASSIGNMENT NOT ALLOWED”): Impermissible value assignment to predefined variables, e.g. First check: Modify the program accordingly.

Updated 2026-09-09 · LogrobotLM reference

Cause

Impermissible value assignment to predefined variables, e.g. $SPEED.ORI1<=0.0 or >$SPEED_MA.ORI1. Or the $Base or $Tool assigned for the kinematic system is not permitted. The check is performed during command and program processing.

Effect

During command processing: the command is not processed. During program processing: stop via braking ramp. All active commands are inhibited.

Troubleshooting

Modify the program accordingly. Acknowledge the message.

Related codes

1450TRANSFORMATION NOT CONFIGURED1440WRONG MAILBOX IDENTIFICATION

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