User guide
Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05 377
5 Function blocks
5.99 L_LdVirtualMasterP - virtual master for synchronism
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5.99.1 Functions
Handwheel function
• Ensures an easy control of a machine run. The clutched drives are interconnected in a system.
• Incremental encoders via DFIN or multiple encoder input. An input must be selected.
• No ramp functions are active.
• Function is enabled via the control (PLC) by selecting the "handwheel function" operating mode
(C05010 ="2") and setting bEnable to TRUE.
Manual jog (inching)
• Operation per HMI or keys via control (PLC). The locking is done in the PLC.
• Ramp functions are active.
• Parameters are defined once or changed via HMI.
Single cycle
• Operation per HMI or keys via control (PLC)
• Function starts with a FALSETRUE edge at the bCycle input.
• Ramp functions are active.
• The data for production speed are used as parameters.
• The cycle starts at the current position and stops at the stop position (C05011).
Continuous operation
• Operation per HMI or keys via control (PLC)
• Function starts with a FALSETRUE edge at the bContinuous input. The function remains active
as long as the TRUE level is applied.
• Ramp functions are active.
• The data for production speed are used as parameters.
• The cycle starts at the current position and stops at the stop position (C05011).
Synchronise virtual master to the external master
• The virtual master is synchronised to an external position selection. Thus, the downstream
system can be separated from the external master any time.
• Application: Modular machines: The external position is delivered by
• MotionBus (Slave)
• DFIN/multiple encoder input/FB L_LdSetXAxisVelocity (relative synchronism)
• Fieldbus as real encoder (must be limited to the cycle set).
• The function is activated by setting bEnable to TRUE.