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Heidenhain Controller
Parameter · Intermediate · 30-120 minutes
HEIDENHAIN 230-046F - Input for axis group enabling on impermissible bus system
Alarm 230-046F occurs when the axis group enable input is incorrectly configured on an unsupported bus system in the IOC file. The axis group enable signal must be defined exclusively on HSCI-PL (Heidenhain Safe Control Interface) or internal PL systems, not on standard I/O modules or external fieldbus systems.
HEIDENHAIN 230-046F - Input for axis group enabling on impermissible bus system
Input for axis group enabling on impermissible bus system
The axis-group enabling input was placed on an illegal bus system. Only HSCI-PL and internal PL are permitted.
Root Cause Summary
Alarm 230-046F occurs when the axis group enable input is incorrectly configured on an unsupported bus system in the IOC file. The axis group enable signal must be defined exclusively on HSCI-PL (Heidenhain Safe Control Interface) or internal PL systems, not on standard I/O modules or external fieldbus systems.
Safety
Causes and Fixes
Access IOC configuration
Navigate to MOD function → System → IOC Configuration to open the I/O configuration file.
Always backup the current IOC file before making changes
Locate axis group enable assignment
Search for the axis group enable input definition in the IOC file and identify which bus system it's currently assigned to.
Document the current configuration before making changes
Reassign to HSCI-PL system
Move the axis group enable input assignment from the standard I/O module to an available HSCI-PL input channel.
HSCI-PL inputs are typically labeled as HSC_IN_x in the IOC configuration
Validate and restart
Save the IOC file, perform syntax check, and restart the control to activate the new configuration.
Control restart required - coordinate with production schedule
Call a technician if:
Prevention
Common Mistakes
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