Table of Contents
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Classification
Error
Error name
of errors
code
Rotation direction setting
905
error
906
Outside bias speed range
Use prohibited area write
908
error
Parameter
Outside speed limit value
910
range
Outside acceleration time
911
0 range
Outside deceleration time
912
0 range
Operation status at error occurrence
■Description
The set value of the basic parameter 1 "Rotation
direction setting" is outside the setting range.
■Operation status at error occurrence
The LD75 READY signal (X0) does not turns ON.
■Description
• The set value of the basic parameter 1 "Bias
speed at start" is outside the setting range.
• The bias speed exceeds the speed limit.
■Operation status at error occurrence
The LD75 READY signal (X0) does not turns ON.
■Description
Any value other than 0 was set at buffer memory
address 101, 251, 401, 551 (use prohibited area).
■Operation status at error occurrence
LD75 READY signal (X0) does not turn on.
■Description
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.
■Operation status at error occurrence
When the power is turned ON or PLC READY
signal (Y0) is turned from OFF to ON: LD75 READY
signal (X0) is not turned ON.
At start: The system will not operate.
■Description
The set value of the basic parameter 2
"Acceleration time 0" is outside the setting range.
■Operation status at error occurrence
When the power is turned ON or PLC READY
signal (Y0) is turned from OFF to ON: LD75 READY
signal (X0) is not turned ON.
At start: The system will not operate.
■Description
The set value of the basic parameter 2
"Deceleration time 0" is outside the setting range.
■Operation status at error occurrence
When the power is turned ON or PLC READY
signal (Y0) is turned from OFF to ON: LD75 READY
signal (X0) is not turned ON.
At start: The system will not operate.
CHAPTER 15 TROUBLESHOOTING
Action/Related buffer memory address/Set
range (Setting with program)
■Action
With the setting brought into the setting range,
turn the PLC READY signal [Y0] from OFF to ON.
■Buffer memory address
Axis 1: 5
Axis 2: 155
Axis 3: 305
Axis 4: 455
■Setting range
0, 1
■Action
• Set the bias speed to not more than the speed
limit value.
• With the setting brought into the setting range,
turn the PLC READY signal [Y0] from OFF to
ON.
■Buffer memory address
Axis 1: 6, 7
Axis 2: 156, 157
Axis 3: 306, 307
Axis 4: 456, 457
■Setting range
0 to 4000000 [pulse/s], 0 to 2000000000 [10
mm/min or other]
■Action
• With the setting value being 0, turn on PLC
READY signal [Y0].
• Review the program which sets a value at
buffer memory address 101, 251, 401, 551 (use
prohibited area).
■Action
The value converted into the frequency should
not exceed the maximum output frequency of the
module.
LD75P: 200000 [pulse/s]
LD75D: 4000000 [pulse/s]
• Set a value which is not less than the OPR
speed.
• With the setting brought into the setting range,
turn the PLC READY signal [Y0] from OFF to
ON.
■Buffer memory address
Axis 1: 10, 11
Axis 2: 160, 161
Axis 3: 310, 311
Axis 4: 460, 461
■Setting range
1 to 4000000 [pulse/s], 1 to 2000000000 [10
mm/min or other]
■Action
With the setting brought into the setting range,
turn the PLC READY signal [Y0] from OFF to ON.
■Buffer memory address
Axis 1: 12, 13
Axis 2: 162, 163
Axis 3: 312, 313
Axis 4: 462, 463
■Setting range
1 to 8388608
■Action
With the setting brought into the setting range,
turn the PLC READY signal [Y0] from OFF to ON.
■Buffer memory address
Axis 1: 14, 15
Axis 2: 164, 165
Axis 3: 314, 315
Axis 4: 464, 465
■Setting range
1 to 8388608
-2
15
-2
667
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Table of Contents
Troubleshooting
