GearInPos_LXM32

Functional Description

This function block starts the operating mode Electronic Gear with the method position synchronization.

In the operating mode Electronic Gear, movements are carried out synchronously according to externally supplied reference value signals. A position reference value is calculated on the basis of these external reference values plus an adjustable gear ratio. The reference value signals can be A/B signals, P/D signals or CW/CCW signals.

A movement can be made using one of two methods:

Position synchronization without compensation movement

Reference value signals supplied during an interruption caused by a halt command or by a detected error of error class 1 are not taken into account.
Position synchronization with compensation movement

Reference value signals supplied during an interruption caused by a halt command or by a detected error of error class 1 are taken into account and compensated for.

Refer to the documentation of the drive for additional information on compensation movements and error classes.

Library and Namespace

Library name: GMC Independent Lexium

Namespace: GILXM

Graphical Representation

Inputs

Input	Data type	Description
Execute	BOOL	Value range: FALSE, TRUE. Default value: FALSE. A rising edge of the input Execute starts the function block. The function block continues execution and the output Busy is set to TRUE. This function block can be restarted while it is executed. The target values are overwritten by the new values at the point in time the rising edge occurs.
SyncMode	BOOL	Value range: FALSE, TRUE. Default value: FALSE. Compensation movement: FALSE: With compensation movement TRUE: Without compensation movement
RatioNumerator	DINT	Value range: 1...2147483647 Default value: 1 Gear ratio: Numerator of gear ratio.
RatioDenominator	DINT	Value range: 1...2147483647 Default value: 1 Gear ratio: Denominator of gear ratio.

Outputs

Output	Data type	Description
Busy	BOOL	Value range: FALSE, TRUE. Default value: FALSE. FALSE: Function block is not being executed. TRUE: Function block is being executed.
CommandAborted	BOOL	Value range: FALSE, TRUE. Default value: FALSE. FALSE: Execution has not been aborted. TRUE: Execution has been aborted by another function block.
Error	BOOL	Value range: FALSE, TRUE. Default value: FALSE. FALSE: Execution of the function block is running, no error has been detected. TRUE: An error has been detected in the execution of the function block.
ErrorID	WORD	Returns the value of a diagnostic code. Refer to Library Diagnostic Codes. If the value is 0 and if the output Error of this function block is set to TRUE, then the diagnostic code can be read with the output AxisErrorID of the function block MC_ReadAxisError.
InGear	BOOL	Value range: FALSE, TRUE. Default value: FALSE. TRUE: If the adjusted gear ratio is reached for the first time in the operating mode Electronic Gear.

Inputs/Outputs

Input/Output	Data type	Description
Axis	Axis_Ref	Reference to the axis (instance) for which the function block is to be executed (corresponds to the name of the axis). The name of the axis must be defined in the EcoStruxure Machine Expert Devices tree.

Notes

This function block requires the drive parameter GEARratio to be 0. This way, RatioNumerator and RatioDenominator are used to calculate the gear ratio.

The velocity of the compensation movement can be limited via parameter settings.

The enabled direction of movement in the operating mode Electronic Gear is set via the drive parameter GEARdir_enabl.

Once the operating mode is active, the compensation movement must not exceed the maximum position deviation. If the required compensation movement exceeds the maximum position deviation, an error is detected.

Refer to the documentation of the drive for more details.

The operating mode Electronic Gear with the method velocity synchronization is started with the function block GearIn_LXM32.

Additional Information

Operating Mode Electronic Gear