Panasonic MINAS A5 Series, Operating Instructions Manual

Page: 329 / 477

Protective
function
Error code No.
Causes Measures
Main Sub
6-7
1. When in Trouble
Protective function (Detail of error code)
1
Before Using the Products
2
Preparation
3
Connection
4
Setup
5
Adjustment
6
When in T
rouble
7
Supplement
*
Regenerative
transistor
error
protection
18 1 Regenerative driver transistor on the
servo driver is defective. Replace the driver.
*
Encoder
communica-
tion discon-
nection error
protection
21 0 Communication between the encoder
and the driver has been interrupted
in certain times, and disconnection
detecting function has been triggered. Make a wiring connection of the encoder as
per the wiring diagram. Correct the miswiring
of the connector pins.
*
Encoder
communica-
tion error
protection
1 Communication error has occurred in
data from the encoder. Mainly data
error due to noise. Encoder cables are
connected, but communication data has
some errors.
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RI'&9WR9SD\DQDWWHQWLRQ
especially when the encoder cables are
long.
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cable if they are bound together.
‡&RQQHFWWKHVKLHOGWR)*
*
Encoder
communi-
cation data
error
protection
23 0 Data communication between the
encoder is normal, but contents of data
are not correct.
Mainly data error due to noise. Encoder
cables are connected, but communication
data has some errors.
Position
deviation
excess
protection 24 0 Deviation pulses have exceeded the
VHWXSRI3U
1) The motor movement has not followed
the command.
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deviation excess setup) is small.
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
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encoder wiring as per the wiring diagram.
Set up the longer acceleration/deceleration
time. Lower the load and speed.
6HWXSDODUJHUYDOXHWR3U
Velocity
deviation
excess
protection 1 The difference between the internal
positional command speed and actual
speed (speed deviation) exceeds the
VHWXSYDOHRI3U
Note) If the internal positional command
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instantaneous stop caused by the
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CW/CCW over-travel inhibit input, the
speed deviation rapidly increases at this
PRPHQW3UVHWXSYDOXHVKRXOGKDYH
VXIÀFLHQWPDUJLQEHFDXVHWKHVSHHG
deviation also largely increases on the
rising edge of the internal positional
command speed.
‡,QFUHDVHWKHVHWXSYDOXHRI3U
‡/HQJWKHQWKHDFFHOHUDWLRQGHFHOHUDWLRQ
time of internal positional command speed,
or improve the follow-up characteristic by
adjusting the gain.
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GHWHFWLRQ3U
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