Mitsubishi Electronics QD75D, QD75P user manual Setting range for the OP shift amount, OPR speed or

12CONTROL SUB FUNCTIONS

[2]Setting range for the OP shift amount

MELSEC-Q

Set the OP shift amount within the range from the detected zero signal to the upper/lower limit switches.

Setting range of the
negative OP	Setting range of the positive OP shift amount
shift amount
Address decrease	Address increase
direction	direction
	Near-point dog
Lower limit	Upper limit

Pr. 44 OPR direction

Zero signal

Fig. 12.5 Setting range for the OP shift amount

[3] Movement speed during OP shift

When using the OP shift function, the movement speed during the OP shift is set in " Pr.56 Speed designation during OP shift". The movement speed during the

OP shift is selected from either the "

Pr.46

OPR speed" or the "

Pr.47

Creep

speed".

The following drawings show the movement speed during the OP shift when a mechanical OPR is carried out by the near-point dog method.

(1) OP shift operation at the " Pr.46 OPR speed"

(When " Pr.56 speed designation during OP shift" is 0)

Pr. 44 OPR	Pr. 46 OPR
direction	speed
	When the " Pr. 53 OP
	shift amount" is positive
	OP
Machine OPR start
	When the " Pr. 53 OP
	shift amount" is negative
Near-point dog

Zero signal

Fig. 12.6 OP shift operation at the OPR speed

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