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Mitsubishi Electric QD77MS User Manual Page 210

Simple motion module.
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Error
Error name
No.
Outside speed change
741
ratio denominator
(2E5h)
range
Outside speed change
742
gear smoothing time
(2E6h)
constant range
743
Speed change gear
(2E7h)
overflow
750
Outside cam No. range
(2EEh)
751
Cam not registered
(2EFh)
752
Outside cam axis
(2F0h)
length per cycle range
Outside output axis
753
smoothing time
(2F1h)
constant range
Outside setting method
760
of current value per
(2F8h)
cycle after main shaft
gear range
Outside current value
761
per cycle after main
(2F9h)
shaft gear (Initial
setting) range
Outside setting method
762
of current value per
(2FAh)
cycle after auxiliary
shaft gear range
Outside current value
763
per cycle after auxiliary
(2FBh)
shaft gear (Initial
setting) range
Outside cam axis
764
position restoration
(2FCh)
object range
Outside setting method
765
of cam reference
(2FDh)
position range
Outside setting method
766
of cam axis current
(2FEh)
value per cycle range
Error
The synchronous parameter " [Pr.437]
Speed change ratio: Denominator" is
set to 0 or lower"
The synchronous parameter " [Pr.435]
Speed change gear smoothing time
constant" is set other than 0 to 5000.
Overflow (sign reversion) occurred in
input values, because the speed
change ratio of speed change gear is
too large.
The synchronous parameter " [Pr.440]
Cam No." is set to other than 0 to 256.
Cam data specified in the synchronous
parameter " [Pr.440] Cam No." does not
exist on the cam open area.
The synchronous parameter " [Pr.439]
Cam axis length per cycle" is set to 0 or
lower.
The synchronous parameter " [Pr.447]
Output axis smoothing time constant" is
set to other than 0 to 5000.
The synchronous parameter " [Pr.460]
Setting method of current value per
cycle after main shaft gear" is set to
other than 0 to 2.
The synchronous parameter " [Pr.465]
Current value per cycle after main shaft
gear (Initial setting)" is other than 0 to
(Cam axis length per cycle -1).
The synchronous parameter " [Pr.461]
Setting method of current value per
cycle after auxiliary shaft gear" is set to
other than 0 to 2.
The synchronous parameter " [Pr.466]
Current value per cycle after auxiliary
shaft gear (Initial setting)" is other than 0
to (Cam axis length per cycle - 1).
The synchronous parameter " [Pr.462]
Cam axis position restoration object" is
set to other than 0 to 2.
The synchronous parameter " [Pr.463]
Setting method of cam reference
position " is set to other than 0 to 2.
• The synchronous parameter " [Pr.464]
Setting method of cam axis current
value per cycle" is set to other than 0
to 3.
• "3: Current value per cycle after
auxiliary shaft gear" is established
when the auxiliary shaft does not exist.
Chapter 6 Troubleshooting (Synchronous Control)
Operation status at
error occurrence
Synchronous control
does not start.
Synchronous control
does not start.
Synchronous control
is immediately
stopped.
Synchronous control
does not start.
6 - 8
Corrective action
Set a value within the range of 1 to
2147483647.
Set a value within the range of 0 to
5000.
• Set a smaller absolute value for the
synchronous parameter " [Pr.436]
Speed change ratio: Numerator".
• Set a larger value for the synchronous
parameter " [Pr.437] Speed change
ratio: Denominator".
• Decrease the input axis speed.
Set a value within the range of 0 to 256.
Specify the cam No. of an existing cam
data.
Set a value within the range of 1 to
2147483647.
Set a value within the range of 0 to
5000.
Set a value within the range of 0 to 2.
Set within the range of 0 to (Cam axis
length per cycle -1).
Set a value within the range of 0 to 2.
Set within the range of 0 to (Cam axis
length per cycle - 1).
Set a value within the range of 0 to 2.
• Set a value within the range of 0 to 3.
• Set other than "3: Current value per
cycle after auxiliary shaft gear" when
the auxiliary shaft does not exist.

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