Mitsubishi Electric MELSEC-QD75MH1 User Manual page 734

15 TROUBLESHOOTING
Related buffer memory address
Axis 1 Axis 2 Axis 3 Axis 4
Load inertia ratio
30147 30347 30547 30747
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
No. of pulses per rotation
2, 3 152, 153 302, 303 452, 453
Movement amount per rotation
4, 5 154, 155 304, 305 454, 455
Unit setting
1 151 301
— — —
— — —
— — —
— — —
: The error check timing is shown below.
• When servo amplifier is power ON.
• When the QD75MH detects the rising edge (OFF
• When servo amplifier is reset.
• When the QD75MH is power ON.
Error Error
check process-
timing ing
Imme-
Always
date stop
451
—
—
Servo amplifier error (2032)
occurs if power is switched on
—
after disconnection of the U, V,
W phase power cables.
—
ON) of the PLC READY signal [Y0].
Check point
15 - 41
MELSEC-Q
Corrective action
Increase acceleration/deceleration
time constant.
• Reset servo gain to proper value.
• If servo gain cannot be set to
proper value:
(1) Reduce " Pr.124 load inertia
moment ratio";
or
(2) Reexamine acceleration/
deceleration time constant.
Confirm whether " Pr.2 No. of
pulses per rotation" and
" Movement amount per
Pr.3
rotation" is applied to the machine
specification.
Change the servomotor.
Correct the wiring.
Change the servo amplifier.
Correct the U, V, W phase wiring of
the servo amplifier.
Take noise suppression measures.