Mitsubishi Electric RD77MS2 User Manual page 607

Error code Error name
(Hexadecimal)
1A6AH Outside speed limit
value range
1A6BH Outside acceleration
time 0 range
1A6CH Outside deceleration
time 0 range
1AA0H Backlash
compensation
amount error
1AA1H Software stroke limit
upper limit
1AA2H Software stroke limit
upper limit
1AA3H Software stroke limit
lower limit
1AA4H Software stroke limit
lower limit
1AA5H Software stroke limit
selection
1AA6H Software stroke limit
valid/invalid setting
1AA7H Command in-
position width
1AA8H Illegal torque limit
setting value
Error details and causes
The setting value of the basic parameter 2 "[Pr.8] Speed
limit value" exceeds the command speed limit value.
[Operation status at error occurrence]
When the PLC READY signal [Y0] is turned from
OFF to ON: READY signal [X0] is not turned ON.
At start: The system does not operate.
The setting value of the basic parameter 2 "Acceleration
time 0" is outside the setting range.
[Operation status at error occurrence]
When the PLC READY signal [Y0] is turned from OFF
to ON: READY signal [X0] is not turned ON.
At start: The system does not operate.
The setting value of the basic parameter 2
"Deceleration time 0" is outside the setting range.
[Operation status at error occurrence]
When the PLC READY signal [Y0] is turned from
OFF to ON: READY signal [X0] is not turned ON.
At start: The system does not operate.
The calculation result of the following equation is
smaller than 0 or larger than 4194304.
[Pr.11] × [Pr.2]
0 4194303
≤ ≤
[Pr.3] × [Pr.4]
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
In the unit of "degree", the setting value of the detailed
parameter 1 "Software stroke limit upper limit value" is
outside the setting range.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
In a unit other than "degree", the software stroke limit
upper limit value is smaller than the setting value of the
software stroke limit lower limit value.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
In the unit of "degree", the setting value of the detailed
parameter 1 "Software stroke limit lower limit value" is
outside the setting range.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
In a unit other than "degree", the software stroke limit
upper limit value is smaller than the setting value of the
software stroke limit lower limit value.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
• The setting value of the detailed parameter 1
"Software stroke limit selection" is outside the setting
range.
• In the unit of "degree", "1: Apply software stroke limit
on machine feed value" is set.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
The setting value of the detailed parameter 1 "Software
stroke limit valid/invalid setting" is outside the setting
range.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
The setting value of the detailed parameter 1
"Command in-position width" is outside the setting
range.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
The setting value of the detailed parameter 1 "Torque
limit setting value" is outside the setting range.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
Remedy
After the speed limit value is set so as not to exceed
the command speed limit value, turn the PLC READY
signal [Y0] from OFF to ON.
With the setting brought into the setting range, turn the
PLC READY signal [Y0] from OFF to ON.
With the setting brought into the setting range, turn the
PLC READY signal [Y0] from OFF to ON.
"[Pr.2] Number of pulses per rotation (AP)", "[Pr.3]
Movement amount per rotation (AL)", "[Pr.4] Unit
magnification (AM)", "[Pr.11] Backlash compensation
amount"
Review the items above.
Correct the setting value and turn the PLC READY
signal [Y0] from OFF to ON.
In a unit other than "degree", set so that the "[Pr.13]
Software stroke limit lower limit value" is smaller than
the "[Pr.12] Software stroke limit upper limit value" and
turn the PLC READY signal [Y0] from OFF to ON.
Correct the setting value and turn the PLC READY
signal [Y0] from OFF to ON.
In a unit other than "degree", set so that the "[Pr.13]
Software stroke limit lower limit value" is smaller than
the "[Pr.12] Software stroke limit upper limit value" and
turn the PLC READY signal [Y0] from OFF to ON.
• Bring the setting into the setting range.
• In the unit of "degree", set "0: Apply software stroke
limit on current feed value".
With the setting brought into the setting range, turn the
PLC READY signal [Y0] from OFF to ON.
With the setting brought into the setting range, turn the
PLC READY signal [Y0] from OFF to ON.
With the setting brought into the setting range, turn the
PLC READY signal [Y0] from OFF to ON.
14 TROUBLESHOOTING
14.5 List of Error Codes
14
605