Mitsubishi Electronics QD75P, QD75D Restrictions with a system using a stepping motor, Function

1 PRODUCT OUTLINE

1.3 Restrictions with a system using a stepping motor

MELSEC-Q

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.

1.4Function 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).
	Function which starts the axis under speed control,
Speed-position switching control (ABS mode)	switches to position control at the external command	Section 9.2.17
	signal input, then positions the axis to a stop at the
	designated address.
Pre-reading start function	Function which shortens virtual start time.	Section 12.7.8
	Function which monitors the external I/O signal monitor
External I/O signal monitor function	information in the module's detailed information which	Section 13.5
	can be displayed on the system monitor of GX
	Developer 1.
	Function that turns ON the flag when the constant
Deceleration start flag function 2	speed status or acceleration status switches to the	Section 12.7.9
	deceleration status during position control whose
	operation pattern is "Positioning complete".
Stop command processing for deceleration stop	Function that selects a deceleration curve when a stop
	cause occurs during deceleration stop processing to	Section 12.7.10
function 3
	speed 0.

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.

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