Precautions On Programming - Panasonic GM1 Series Reference Manual

9.3 Precautions On Programming

9.3 Precautions On Programming

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Common precautions to each operation
● If the values for the startup speed, target speed, acceleration / deceleration, or position
command value exceed the range of values which can be specified, a function block error
will occur, and operation cannot be initiated.
● With the GM1 pulse output unit, specify the speed (startup speed and target speed) in the
unit of "u/s". 1 u/s = 1 pps
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"Role of positioning control start input (Timing input)"
● When the input from "Positioning control start input (Timing input)" of the external terminal
(No. A19 or B19) is turned ON, positioning control is started.
● The status of "Positioning control start input (Timing input)" can be monitored using the
PG_ReadStatus function block.
● JOG positioning operation can be initiated by turning ON/OFF the PositioningStart input
parameter of the PG_StopLatchPosition function block in user programs instead of the input
from external terminals. It can be used when performing a debug.
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Characteristics of JOG positioning operation function
● When JOG positioning operation is started with "Positioning control start input (Timing input)"
turned ON, the positioning control is immediately started.
● When "Positioning control start input (Timing input)" is turned ON during acceleration, also
the positioning control is immediately started.
● If "Positioning control start input (Timing input)" does not go ON after the JOG positioning
operation is initiated, the pulses keep going out.
● The pulse output unit starts counting the number of the output pulses within 15 μs from when
"Positioning control start input (Timing input)" is ON during the JOG positioning operation.
The time is always stable, enabling the table to stop at the specified position very accurately.
Since each axis is completely independent, the high-accurate stop is possible even with the
multiple axes.
9-6 WUME-GM1PG-01