Mitsubishi Electronics QD75P, QD75D Detailed parameters, Pr.11 Backlash compensation amount

5DATA USED FOR POSITIONING CONTROL

5.2.3 Detailed parameters 1

MELSEC-Q

			Setting value, setting range							Setting value buffer memory
											address
	Item								Default value
			Value set with peripheral device	Value set with						Axis 1	Axis 2	Axis 3	Axis 4
				sequence program
		The setting value range differs according to the "						Unit
					Pr.1
		setting".
Pr.11
Backlash compensation		Here, the value within the [Table 1] range is set.							0	17	167	317	467
amount			[Table 1] on right page
Pr.12		The setting value range differs according to the "				Pr.1		Unit	2147483647	18	168	318	468
Software stroke limit upper
		setting".								19	169	319	469
limit value		Here, the value within the [Table 2] range is set.
Pr.13			[Table 2] on right page						–2147483648	20	170	320	470
Software stroke limit lower
										21	171	321	471
limit value
		0 : Apply software stroke limit on current
Pr.14							0
			feed value
Software stroke limit									0	22	172	322	472
		1 : Apply software stroke limit on
							1
selection
			machine feed value
		0 : Software stroke limit valid during JOG
			operation,inching operation and				0
Pr.15
			manual pulse generator operation
Software stroke limit									0	23	173	323	473
		1 : Software stroke limit invalid during
valid/invalid setting
			JOG operation ,inching operation and				1
			manual pulse generator operation

Pr.11

Backlash compensation amount

The error that occurs due to backlash when moving the machine via gears can be compensated.

When the backlash compensation amount is set, pulses equivalent to the compensation amount will be output each time the direction changes during positioning.

Pr.44 OPR direction

Workpiece

(moving body)

Worm gear

Backlash

(compensation amount)

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