Mitsubishi Electronics QD75D Pr.17 Torque limit setting value, Pr.18 Code on signal output timing

5DATA USED FOR POSITIONING CONTROL

Pr.17 Torque limit setting value

MELSEC-Q

Set the maximum value of the torque generated by the servomotor as a percentage between 1 and 500%.

The torque limit function limits the torque generated by the servomotor within the set range.

If the torque required for control exceeds the torque limit value, it is controlled with the set torque limit value.

Usage conditions

Limits for pulse train output type

(a)A drive unit that can issue a torque limit command with the analog voltage is required.

(b)The D/A conversion module and the D/A conversion module and drive unit must be wired.

(c)The set " Pr.17 Torque limit setting value" is set in the buffer memory " Md.35 Torque limit stored value", so transmit that " Md.35 Torque limit stored value" to the D/A conversion module with the sequence program.

[Table 1]

		Value set with peripheral device		Value set with sequence program
Pr.1	setting value
		(unit)		(unit)
0	: mm	0.1 to 214748364.7 (µm)		1 to 2147483647	(×10–1µm)
1	: inch	0.00001 to 21474.83647	(inch)	1 to 2147483647	(×10–5inch)
2	: degree	0.00001 to 21474.83647	(degree)	1 to 2147483647	(×10–5degree)
3	: pulse	1 to 2147483647 (pulse)		1 to 2147483647	(pulse)

Pr.18

M code ON signal output timing

This parameter sets the M code ON signal output timing.

Choose either WITH mode or AFTER mode as the M code ON signal output timing.

WITH mode	An M code is output and the M code ON
	signal is turned ON when a positioning
	operation starts.

Positioning start signal [Y10,Y11,Y12,Y13]

BUSY signal [XC,XD,XE,XF]

M code ON signal [X4,X5,X6,X7]

Cd.7 M code OFF request

[1504,1604,1704,1804]
Md.25	Valid M code	m1	m2
Positioning
Da.1	Operation pattern	01 (continuous)	00 (end)

: m1 and m2 indicate set M codes.

AFTER mode ...... An M code is output and the M code ON

signal is turned ON when a positioning operation completes.

Positioning complete signal [X14,X15,X16,X17]

BUSY signal [XC,XD,XE,XF]

M code ON signal [X4,X5,X6,X7]

Cd.7	M code OFF request
[1504,1604,1704,1804]
Md.25	Valid M code	m1	m2
Positioning
Da.1	Operation pattern	01 (continuous)	00 (end)

: m1 and m2 indicate set M codes.

Note: If AFTER mode is used with speed control, an M code will not be output and the M code ON signal will not be turned ON.

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