Mitsubishi Electric QD75MH1 User Manual page 738

15 TROUBLESHOOTING
Related buffer memory address
Axis 1 Axis 2 Axis 3 Axis 4
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
— — —
Model loop gain
30125 30325 30525 30725
Torque limit value
26 176 326
OPR torque limit value
86 236 386
Torque output setting value
1552 1652 1752
Input signal logic selection
31 181 331
— — —
— — —
— — —
— — —
— — —
: 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
476
536
1852
Always
—
Imme-
date stop
476
536
1852
481
—
—
—
—
— Always
ON) of the PLC READY signal [Y0].
Check point
Servo amplifier error (2088)
occurs if power is switched on
after disconnection of the
CN1A, CN1B and CN3
15 - 49
MELSEC-Q
Corrective action
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.
• When torque is limited, increase
the limit value.
• Reduce load.
• Use servomotor that provides
larger output.
• Review operation pattern.
• Install limit switches.
Change the servomotor.
Connect correctly.
Change the SSCNET cable.
Use correct combination.
Change servo amplifier.