Mitsubishi Electric D75D4, User Manual

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15 - 34
MELSEC-Q
15 TROUBLESHOOTING
Classification
of errors
Error
code
Error name Error
Operation status at error
occurrence
Parameter
900
Outside unit setting
range
The set value of the basic parameter 1
"Unit setting" is outside the setting
range.
The QD75 READY signal (X0) is
not turned ON.
901
Outside pulse
number per rotation
range The set value of the basic parameter 1
"No. of pulses per rotation" is outside
the setting range.
902
Outside movement
amount per rotation
range The set value of the basic parameter 1
"Movement amount per rotation" is
outside the setting range.
903
Outside unit
magnification range
The set value of the basic parameter 1
"Unit magnification" is outside the
setting range.
904
Pulse output mode
error
The set value of the basic parameter 1
"Pulse output mode" is outside the
setting range.
905
Rotation direction
setting error
The set value of the basic parameter 1
"Rotation direction setting" is outside
the setting range.
906
Outside bias speed
range
• The set value of the basic parameter 1
"Bias speed at start" is outside the
setting range.
• The bias speed exceeds the speed
limit.
910
Outside speed limit
value range
• The set value of the basic parameter 2
"Speed limit value" is outside the
setting range.
• The value obtained by the conversion
of the speed limit value with respect to
the frequency exceeds the maximum
output frequency of the unit.
• The speed limit value is smaller than
the OPR speed.
When the power is turned ON or
PLC READY signal (Y0) is turned
from OFF to ON:
QD75 READY signal (X0) is not
turned ON.
At start:
The system will not operate.
911
Outside acceleration
time 0 range
The set value of the basic parameter 2
"Acceleration time 0" is outside the
setting range.
912
Outside deceleration
time 0 range
The set value of the basic parameter 2
"Deceleration time 0" is outside the
setting range.
920
Backlash
compensation
amount error The value converted into pulse number
using the movement amount per pulse
is 256 pulses or more.
The QD75 READY signal (X0) is
not turned ON.
921
Software stroke limit
upper limit
• In the unit of degree, the set value of
the detailed parameter 1 "Software
stroke limit upper limit value" is
outside the setting range.
• In a unit other than degree, the
software stroke limit upper limit value
is smaller than the software stroke
limit lower limit value.