Mitsubishi Electric MELSEC iQ-R RD75P4, Руководство пользователя

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6 INTER-MODULE SYNCHRONIZATION FUNCTION (SIMULTANEOUS START OF MULTIPLE MODULES)
6.1 Control in Pre-analysis Mode
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6
Restrictions
When including the RD75 in the synchronization target module, set the value 0.88ms or more in "Synchronous Fixed Scan
Interval Setting within the Modules" of "System Parameter". The other restrictions are the same as those of the quick start. For
the restrictions, refer to the description of the quick start. (

Page 27 Restrictions)
Precautions
• When the positioning start setup time (t2) is shorter than 0.1ms and the positioning cannot be started at the same timing of
the inter-module synchronization cycle, Inter-module synchronization processing fault (Error code: 2600H) occurs in the
RD75 that has failed to start the positioning and it does not start the operation. In addition, when the CPU is set to stop at a
moderate error in "CPU Module Operation Setting at Error Detection" of "System Parameter, the control CPU of the RD75
in which a moderate error has occurred stops due to the error and the operation of the RD75 that has started pulse output
decelerates to stop.
• This function synchronizes the start timing of pulse output with the inter-module synchronization cycle. After the start, each
RD75 maintains the positioning control independently.
• After the start, each RD75 maintains the positioning control independently. Thus, even if an error occurs in one RD75 and
the operation decelerates to stop, the RD75s in which an error does not occur continue positioning. If all the axes need to
be stopped at an error, stop the axes with a program.
• After the start, because each RD75 maintains the positioning control independently, Stop signals input with a program are
not detected at the same timing and the stop position may differ.
• The other restrictions are the same as those of the quick start. For the restrictions, refer to the description of the quick start.
(

Page 27 Precautions)