Mitsubishi Electric QD75MH1 User Manual page 741

15 TROUBLESHOOTING
Classification Warning
of warnings code
Manual pulse Outside manual
generator pulse generator
401
operation input magnification
warnings range
Deceleration/stop
500
speed change
Speed limit value
501
over
M code ON signal
503
ON start
No operation
505
termination setting
FOR to NEXT nest
506
construction
Positioning
operation Speed-position
warnings
switching (during
508
acceleration) signal
ON
Insufficient
509
remaining distance
511 Step not possible
Illegal external
512
command function
Insufficient
513
movement amount
Warning name
The manual pulse generator 1 pulse
input magnification is set at 0 or
1001 or higher.
The speed change request is issued
during deceleration stop.
The new value exceeds the speed
limit value when the speed is
changed during operation.
The M code ON signal is turned ON
when the positioning data is
executed.
In the positioning by block starting,
the 50th point of the positioning start
data is set to CONTINUE.
FOR to NEXT is nested.
The switching signal for speed-
position switching control (INC
mode) is turned ON during
acceleration.
• At a continuous operation interrupt
request, the distance required
deceleration stop is not long
enough.
• At a speed change request, the
remaining distance is shorter than
the distance required for speed
change.
Code 1 is set for the step start
information when the step is outside
standby.
The detailed parameter 2 "External
command function selection" setting
range is exceeded.
The movement amount is not large
enough for automatic deceleration.
Warning
• When input magnification is set at
• When input magnification is set at 0:
The speed change is not carried out.
• The speed is controlled with the
• The "speed limiting flag" is turned
Continue executing the positioning
data.
The operation is terminated.
The operation is continued.
• When a command speed is
• When a target position is changed:
(When the operation pattern is a
continuous path control, ignore the
operations stated above.)
The step will not start.
Even if the external command signal
is turned ON, the system will not
perform anything.
The system stops immediately after it
reaches the positioning address.
15 - 52
MELSEC-Q
Operation status at warning
occurrence
1001 or higher: Re-set to 1000.
Re-set to 1.
speed limit value.
ON.
changed:
Change to a value as near a new
speed value as possible.
Adjust the speed to a value as
near the command speed as
possible, and then change to a
target position.