Mitsubishi QD75M1, User Manual

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15 - 24
MELSEC-Q
15 TROUBLESHOOTING
Classification
of errors
Error
code
Error name Error Operation status at error occurrence
900
Outside unit setting
range
The set range of the basic parameter
1 "Unit setting" is outside the setting
range.
901
Outside pulse
number per rotation
range The set range of the basic parameter
1 "No. of pulses per rotation" is
outside the setting range.
902
Outside movement
amount per rotation
range The set range of the basic parameter
1 "Movement amount per rotation" is
outside the setting range.
905
Rotation direction
setting error
The set range of the basic parameter
1 "Rotation direction setting" is
outside the setting range.
906
Outside bias speed
range
• The set range of the basic
parameter 1 "Bias speed at start" is
outside the setting range.
• The bias speed exceeds the speed
limit.
The QD75 READY signal (X0) is not
turned ON.
910
Outside speed limit
value range
• The set range 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.
911
Outside acceleration
time 0 range
The set range of the basic parameter
2 "Acceleration time 0" is outside the
setting range.
912
Outside deceleration
time 0 range
The set range of the basic parameter
2 "Deceleration time 0" is outside the
setting range.
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.
The calculation result of the following
equation is smaller than 0 or larger
than 65536.
Pr.11 Pr.2
920
Backlash
compensation
amount error
0
≤
Pr.3
≤
65535
Parameter
setting range
errors
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.
The QD75 READY signal (X0) is not
turned ON.