Mitsubishi Electronics QD75P, QD75D user manual Output specifications

3 SPECIFICATIONS AND FUNCTIONS

MELSEC-Q

Output specifications

	Rated load	Working load	Max. load	Max. voltage	Leakage current
Signal name			current/rush			Response time
	voltage	voltage range	current	drop at ON	at OFF

•Differential driver equivalent to Am26C31 (For QD75D)

• Select the CW/CCW type, PULSE/SIGN type and A phase/B phase type using the parameter ( Pr.5 Pulse output mode) according to the drive unit specifications.

			•	The relation of the pulse output with the "																Pulse output mode" and "														Output signal logic
																		Pr.5														Pr.23
				selection" is shown below:
																				Output signal logic selection (bit 0)
																		Pr.23
					Pr.5	Pulse
														Positive logic																			Negative logic
				output mode
										Forward run									Reverse run											Forward run						Reverse run
					CW
Pulse output					CCW
(CW/PULSE/A phase)					PULSE
Pulse sign					SIGN								High							Low											Low						High
(CCW/SIGN/B phase)
					Aφ
					Bφ
			The table below shows the rising/falling edge time and duty ratio when the QD75P																															is used.
							ON
							OFF
										tr						tf
																	50mA/1 point/
				5 to 24VDC					4.75 to 30VDC								200mA 10ms or							0.5VDC (TYP)								0.1mA or less						—
																		less
Deviation counter clear				5 to 24VDC					4.75 to 30VDC								0.1A/1 point/0.4A								1VDC (TYP)							0.1mA or less					2ms or less
(CLEAR)																	10ms or less							2.5VDC (MAX)												(resistance load)
: Pulse rising/falling edge time when the QD75P is used (Unit for "tr" and "tf": µs, unit for "Duty": %)
... When ambient temperature is room temperature.
Load voltage (V)								26.4																							4.75
Cable length (m)				1											2											1									2
Load	Pulse	tr			tf							tr			tf								tr						tf					tr			tf
current	speed	(Rising		(Falling			Duty				(Rising			(Falling				Duty				(Rising					(Falling				Duty			(Rising		(Falling			Duty
(mA)	(kpps)	edge)		edge)							edge)			edge)								edge)						edge)						edge)		edge)
	200	2.33		0.08			6.6			2.20				0.08				14.6			0.57						0.07				44.8			0.95		0.07			39.0
2	100	2.42		0.09			34.7			4.44				0.10				12.6			0.57						0.07				47.5			1.01		0.08			45.3
	10	2.44		0.09			48.7			4.52				0.10				47.7			0.60						0.07				49.7			1.04		0.08			49.5
	200	1.00		0.09			39.8			1.77				0.11				24.5			0.32						0.07				48.4			0.45		0.08			45.8
5	100	1.01		0.09			45.3			1.76				0.10				40.3			0.31						0.07				49.2			0.45		0.08			48.7
	10	1.00		0.10			49.6			1.72				0.10				49.2			0.33						0.08				49.9			0.49		0.08			49.8
	200	0.27		0.10			50.1			0.44				0.11				48.0			0.15						0.08				50.7			0.15		0.08			51.3
	100						49.8							0.11				49.1			0.15						0.08				50.4			0.18					50.4
20		0.29		0.10						0.48																										0.08
	10	0.30		0.10			49.9			0.48				0.12				49.9			0.17						0.08				50.1			0.18		0.08			49.9
	200	0.19		0.11			50.5			0.24				0.12				50.6			0.15						0.10				51.8			0.14		0.11			51.7
50	100	0.19		0.11			50.4			0.24				0.12				50.4			0.14						0.10				50.7			0.15		0.10			50.8
	10	0.18		0.12			50.0			0.22				0.13				50.1			0.14						0.10				50.1			0.15		0.12			50.1

The time for H/L width of differential output waveform with the QD75D. (Cable length: 2m, Ambient temperature: room temperature)

Pulse speed	H width	L width
1Mpps	410ns	456ns
500kpps	936ns	1µs

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