Panasonic MINAS A5-series Operating Instructions Manual page 283

1. When in Trouble
Protective function (Detail of error code)
Protective Error code No.
function
Main Sub
*
47 0
Absolute
status error
protection *1
*
48 0
Encoder
Z-phase
error
protection*1
*
49 0
Encoder CS
signal error
protection*1
*
50 0
Feedback
scale
wiring error
protection
*
1
External
communi-
cation data
error
protection
*
51 0
External
scale status
0 error
protection *1
*
1
External
scale status
1 error
protection *1
*
2
External
scale status
2 error
protection *1
*
3
External
scale status
3 error
protection *1
Note
• When protective function marked with
not be disabled by the alarm clear input (A-CLR). To return to the normal operation, turn off
power, remove the cause, and then turn on power again.
Related page
• P.4.6... "Details of parameter"
Causes
Encoder has been running at faster
speed than the specified value at power-
on.
Missing pulse of Z-phase of serial
incremental encoder has been detected.
The encoder might be a failure.
CS signal logic error of serial incremental
encoder has been detected.
The encoder might be a failure.
Communication between the external
scale and the driver has been interrupted
in certain times, and disconnection
detecting function has been triggered.
Communication error has occurred in
data from the external scale. Mainly data
error due to noise. External scale cables
are connected, but communication date
has some error.
Bit 0 of the external scale error code
(ALMC) has been turned to 1.
Check the specifications of the external
scale.
Bit 1 of the external scale error code
(ALMC) has been turned to 1.
Check the specifications of the external
scale.
Bit 2 of the external scale error code
(ALMC) has been turned to 1.
Check the specifications of the external
scale.
Bit 3 of the external scale error code
(ALMC) has been turned to 1.
Check the specifications of the external
scale.
Arrange so as the motor does not run at
power-on.
Replace the motor.
Replace the motor.
• Make a wiring connection of the external
scale as per the wiring diagram.
• Correct the miswiring of the connector pins.
• Secure the power supply for the external
scale of DC5±5% (4.75 to 5.25V)...pay
attention especially when the external scale
cables are long.
• Separate the external scale cable and the
motor cable if they are bound together.
• Connect the shield to FG...refer to wiring
diagram.
Remove the causes of the error, then clear
the external scale error from the front panel.
And then, shut off the power to reset.
*
in the protective function table is activated, it can-
Measures
6-11
1
2
3
4
5
6
7