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MELSEC-Q
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1.3 Restrictions with a system using a stepping motor
Note the following restrictions applicable to a system that uses a stepping motor:
(1) The S-pattern acceleration/deceleration is disabled because it requires a
servomotor for the controlled axis.
(2) The circular interpolation control is disabled because it requires a servomotor
for each of the two controlled axes.
1.4 Function additions/modifications according to function version B
POINT
When it is desired to check the following items, refer to the corresponding
explanation sections.
How to check the function version and SERIAL No. (Refer to Section 2.4)
The following function additions/modifications according to the function version B of the
QD75:
Function Outline Reference
Multiple PLC compatible function Refer to QCPU User's Manual (Multiple CPU System).
Speed-position switching control (ABS mode)
Function which starts the axis under speed control,
switches to position control at the external command
signal input, then positions the axis to a stop at the
designated address.
Section 9.2.17
Pre-reading start function Function which shortens virtual start time. Section 12.7.8
External I/O signal monitor function
Function which monitors the external I/O signal monitor
information in the module's detailed information which
can be displayed on the system monitor of GX
Developer
1.
Section 13.5
Deceleration start flag function 2
Function that turns ON the flag when the constant
speed status or acceleration status switches to the
deceleration status during position control whose
operation pattern is "Positioning complete".
Section 12.7.9
Stop command processing for deceleration stop
function 3
Function that selects a deceleration curve when a stop
cause occurs during deceleration stop processing to
speed 0.
Section 12.7.10
1: Usable on GX Developer (SW6D5C-GPPW-E or later). For details, refer to GX Developer Operating Manual.
2: Usable with the module whose first five digits of SERIAL No. are "03042" or later.
3: Usable with the module whose first five digits of SERIAL No. are "05072" or later.