Mitsubishi Electronics QD75D, QD75P Input/output signal comparisons, Input signal comparisons

APPENDICES

(6) Input/output signal comparisons

MELSEC-Q

Input signal comparisons

			A1SD75		QD75
Name		Logic (initial status)		Logic switch with	Logic (initial status)	Logic switch with
				parameters		parameters
Drive unit READY		Negative logic		Not possible	Negative logic	Possible
In-position signal		Negative logic		Not possible	–	–
Zero signal		Negative logic		Not possible	Negative logic	Possible
Manual pulse generator A phase		Negative logic		Not possible	Negative logic	Possible
Manual pulse generator B phase	1	(multiple of 4)			(multiple of 4)
Near-point signal		Negative logic		Not possible	Negative logic	Possible
Stop signal		Negative logic		Not possible	Negative logic	Possible
Upper limit		Negative logic		Not possible	Negative logic	Possible
Lower limit		Negative logic		Not possible	Negative logic	Possible
External start 2		Negative logic		Not possible	Negative logic	Possible
Speed-position switching signal	2	Negative logic		Not possible	Negative logic	Possible

Output signal comparisons

	A1SD75			QD75
Name	Logic (initial status)	Logic switch with		Logic (initial status)	Logic switch with
			parameters		parameters
Command pulse 3	Positive logic		Possible	Negative logic	Possible
	CW/CCW mode			CW/CCW mode
Deviation counter clear	Negative logic		Not possible	Negative logic	Possible
1: Comparisons about manual pulse generator A phase/B phase
	A1SD75			QD75
No. of connectable manual pulse	1 generator/1 axis			1 generator/1 module
generators
				Possible
Mode selection (with parameter)	Not possible			Multiple of 1 mode, multiple of 4 mode,
				PULSE/SIGN mode

2: With the QD75, the "external start signal" and "speed-position switching signal" are combined into the "external command signal".

3: Comparisons about command pulse

	A1SD75	QD75
Mode selection (with parameter)	PULSE/SIGN mode, A phase/B phase (multiple of 4) mode,
	A phase/B phase (multiple of 1) mode, CW/CCW mode
Max. command frequency	Open collector: 200kpps	Open collector: 200kpps
	Differential driver: 400kpps	Differential driver: 1Mpps

Appendix - 67