Mitsubishi Electric MELSEC iQ-R RD75P4, User Manual

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14 TROUBLESHOOTING
14.5 List of Error Codes
541
14
1A66H Outside bias
speed range A value outside the setting range is set in [Pr.7] Bias speed at
start of basic parameter 1.
[Operation of when the error has occurred]
RD75 READY signal [X0] does not turn on. Correct the value within the setting range and turn on PLC
READY signal [Y0]. For details, refer to
 Page 386 [Pr.7]
Bias speed at start.
1A67H [Pr.7] Bias speed at start of basic parameter 1 is over [Pr.8]
Speed limit value.
[Operation of when the error has occurred]
RD75 READY signal [X0] does not turn on. Set values so that [Pr.7] Bias speed at start becomes equal to
or below [Pr.8] Speed limit value, and turn on PLC READY
signal [Y0].
For details, refer to the following.

Page 386 [Pr.7] Bias speed at start

Page 389 [Pr.8] Speed limit value
1A68H Outside
electronic gear
selection A value outside the setting range is set in [Pr.62] Electronic
gear selection of basic parameter 1.
[Operation of when the error has occurred]
RD75 READY signal [X0] does not turn on. Correct the value within the setting range and turn on PLC
READY signal [Y0]. For details, refer to

Page 387 [Pr.62]
Electronic gear selection.
1A69H Outside speed
limit value range A value outside the setting range is set in [Pr.8] Speed limit
value of basic parameter 2.
[Operation of when the error has occurred]
■ At power-on or at turning on of PLC READY signal [Y0]
RD75 READY signal [X0] does not turn on.
■ At the start of operation
The operation is not performed.
Correct the value within the setting range and turn on PLC
READY signal [Y0] if the signal is off. For details, refer to

Page 389 [Pr.8] Speed limit value.
1A6AH The command pulse frequency converted from the value in
[Pr.8] Speed limit value of basic parameter 2 is over the
maximum output pulse of the module.
[Operation of when the error has occurred]
■ At power-on or at turning on of PLC READY signal [Y0]
RD75 READY signal [X0] does not turn on.
■ At the start of operation
The operation is not performed.
Correct the value so that the command pulse frequency is not
over the maximum output pulse of the module, and turn on
PLC READY signal [Y0] if the signal is off.
• RD75P: 200000 (pulse/s)
• RD75D: 5000000 (pulse/s)
1A6BH Outside
acceleration
time 0 range A value outside the setting range is set in [Pr.9] Acceleration
time 0 of basic parameter 2.
[Operation of when the error has occurred]
RD75 READY signal [X0] does not turn on. Correct the value within the setting range and turn on PLC
READY signal [Y0] if the signal is off. For details, refer to

Page 390 [Pr.9] Acceleration time 0, [Pr.10] Deceleration
time 0.
1A6CH Outside
deceleration
time 0 range A value outside the setting range is set in [Pr.10] Deceleration
time 0 of basic parameter 2.
[Operation of when the error has occurred]
■ At the start of operation
The operation is not performed.
■
During operation
The operation stops according to the setting of [Pr.39] Stop
group 3 sudden stop selection of detailed parameter 2
(deceleration stop/sudden stop). (for manual pulse generator
operation, deceleration stop only)
Correct the value within the setting range and turn on PLC
READY signal [Y0] if the signal is off. For details, refer to

Page 390 [Pr.9] Acceleration time 0, [Pr.10] Deceleration
time 0.
1AA0H Backlash
compensation
amount error The number of pulses converted from the movement amount
per pulse is 256 or greater.
[Operation of when the error has occurred]
RD75 READY signal [X0] does not turn on. Set values so that the number of pulses converted from the
movement amount per pulse becomes smaller than 256, and
turn on PLC READY signal [Y0]. For details, refer to
 Page
391 [Pr.11] Backlash compensation amount.
1AA1H Software stroke
limit upper limit When the unit is degree, a value outside the setting range is
set in [Pr.12] Software stroke limit upper limit value of detailed
parameter 1.
[Operation of when the error has occurred]
RD75 READY signal [X0] does not turn on.
Correct the value within the setting range and turn on PLC
READY signal [Y0]. For details, refer to
 Page 392 [Pr.12]
Software stroke limit upper limit value.
1AA2H When the unit other than degree is set, [Pr.12] Software
stroke limit upper limit value is smaller than [Pr.13] Software
stroke limit lower limit value. (The error code: 1AA4H is stored
as well.)
[Operation of when the error has occurred]
RD75 READY signal [X0] does not turn on. When the unit is other than degree, set values so that [Pr.12]
Software stroke limit upper limit value becomes greater than
[Pr.13] Software stroke limit lower limit value, and turn on PLC
READY signal [Y0].
For details, refer to the following.

Page 392 [Pr.12] Software stroke limit upper limit value

Page 392 [Pr.13] Software stroke limit lower limit value
Error
code Error name Cause and description Action