Mitsubishi QD75M2 User Manual

15 - 37
MELSEC-Q
15 TROUBLESHOOTING
Related buffer memory address
Axis 1 Axis 2 Axis 3 Axis 4
Check point Corrective action
After alarm has occurred, hold power on for a few
minutes, and switch it off once, then on again.
Make OPR again.
— — — —
Change the battery. Make OPR again.
— — — —
After alarm has occurred, hold power on for a few
minutes, and switch it off once, then on again.
Make OPR again.
Regenerative resistor brake option
30102 30202 30203 30204
Set correctly.
— — — —
Connect correctly
— — — —
Call the status display and check
the regenerative load ratio.
• Reduce the frequency of positioning.
• Use the regenerative brake option of larger
capacity.
• Reduce the load.
Review power supply.
— — — —
Change the regenerative brake option.
— — — —
• The regenerative brake option
has overheated abnormally.
• The alarm occurs even after
removal of the built-in
regenerative brake resistor or
regenerative brake option.
Change the servo amplifier.
Change the servo amplifier or regenerative brake
option.
— — — —
• Change the servo amplifier or cooling fan.
• Reduce ambient temperature.
Load inertia ratio
30112 30212 30312 30412
Increase acceleration/deceleration time constant.
Acceleration time
12, 13 162, 163 312, 313 462, 463
36, 37 186, 187 386, 387 486, 487
38, 39 188, 189 338, 389 488, 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
• Reset servo gain to proper value.
• If servo gain cannot be set to proper value:
(1) Reduce "
Pr.112
load inertia moment ratio";
or
(2) Reexamine acceleration/deceleration time
constant.

Mitsubishi QD75M2 Specifications

General

Brand	Mitsubishi
Model	QD75M2
Category	Controller
Language	English