Panasonic MINAS A5 Series Operating Instructions Manual page 329

1. When in Trouble
Protective function (Detail of error code)
Error code No.
Protective
function
Main Sub
* 18 1 Regenerative driver transistor on the
Regenerative servo driver is defective.
transistor
error
protection
* 21 0 Communication between the encoder
Encoder and the driver has been interrupted
communica- in certain times, and disconnection
tion discon- detecting function has been triggered.
nection error
protection
* 1 Communication error has occurred in
Encoder data from the encoder. Mainly data
communica- error due to noise. Encoder cables are
tion error connected, but communication data has
protection some errors.
* 23 0 Data communication between the
Encoder encoder is normal, but contents of data
communi- are not correct.
cation data Mainly data error due to noise. Encoder
error cables are connected, but communication
protection data has some errors.
Position 24 0 Deviation pulses have exceeded the
deviation
1) The motor movement has not followed
excess
protection
Velocity 1 The difference between the internal
deviation positional command speed and actual
excess speed (speed deviation) exceeds the
protection
Note) If the internal positional command
instantaneous stop caused by the
CW/CCW over-travel inhibit input, the
speed deviation rapidly increases at this
deviation also largely increases on the
rising edge of the internal positional
command speed.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
Causes
the command.
deviation excess setup) is small.
Measures
Replace the driver.
Make a wiring connection of the encoder as
per the wiring diagram. Correct the miswiring
of the connector pins.
especially when the encoder cables are
long.
cable if they are bound together.
1) Check that the motor follows to the position
command pulses. Check that the output
toque has not saturated in torque monitor.
Make a gain adjustment. Set up maximum
encoder wiring as per the wiring diagram.
Set up the longer acceleration/deceleration
time. Lower the load and speed.
time of internal positional command speed,
or improve the follow-up characteristic by
adjusting the gain.
1
2
3
4
5
6
7
6-7