Mitsubishi Electric MELSEC-Q QD75M User Manual page 706

15 TROUBLESHOOTING
Related buffer memory address
Axis 1 Axis 2 Axis 3
— — —
Input signal logic selection
31 181 331
— — —
Auto tuning
30108 30208 30308
Servo response
30109 30209 30309
— — —
— — —
Acceleration time
12, 13 162, 163 312, 313 462, 463
36, 37 186, 187 336, 337 486, 487
38, 39 188, 189 338, 339 488, 489
40, 41 190, 191 340, 341 490, 491
Deceleration time
14, 15 164, 165 314, 315 464, 465
42, 43 192, 193 342, 343 492, 493
44, 45 194, 195 344, 345 494, 495
46, 47 196, 197 346, 347 496, 497
Torque limit value
26 176 326
OPR torque limit value
86 236 386
Torque output setting value
1552 1652 1752
— — —
Positioning gain 1
30113 30213 30313
Check point
Axis 4
When the servomotor shaft is
rotated with the servo off,
the cumulative feedback pulses
— should vary in proportion to the
rotary angle. If the indication skips
or returns midway the encoder if
faulty.
481
—
30408
30409
—
When the servomotor shaft is
rotated with the servo off,
the cumulative feedback pulses
should vary in proportion to the
—
rotary angle. If the indication skips
or returns midway the encoder if
faulty.
476
536
1852
—
30413
Change servomotor.
• Review operation pattern.
• Install limit switches.
Connect correctly.
• Repeat acceleration/deceleration to execute
" Pr.108 Auto tuning".
• Change " Pr.109 S
• Set " Pr.108 Auto tuning" to OFF and make gain
adjustment manually.
Change the servo amplifier.
Change the servomotor.
Increase the acceleration/deceleration time
constant.
Increase the torque limit value.
• Review the power supply capacity.
• Use servomotor which provides larger output.
Increase set value and adjust to ensure proper
operation.
15 - 43
MELSEC-Q
Corrective action
" setting.
ervo response