Panasonic MINAS A5-series, Operating Instructions Manual

Page: 279 / 394

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
Trouble
7
Supplement
Position
deviation
excess
protection
24 0 Deviation pulses have exceeded the
setup of Pr0.14.
1) The motor movement has not followed
the command.
2) Setup value of Pr0.14 (Position
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
value to Pr0.13 and Pr5.22. Make a
encoder wiring as per the wiring diagram.
Set up the longer acceleration/deceleration
time. Lower the load and speed.
2) Set up a larger value to Pr0.14.
Velocity
deviation
excess
protection
1 The difference between the internal
positional command speed and actual
speed (speed deviation) exceeds the
setup vale of Pr6.02.
Note) If the internal positional command
speed is forcibly set to 0 due to
instantaneous stop caused by the
command pulse inhibit input (INH) or
CW/CCW over-travel inhibit input, the
speed deviation rapidly increases at this
moment. Pr6.02 setup value should have
sufficient margin because the speed
deviation also largely increases on the
rising edge of the internal positional
command speed.
• Increase the setup value of Pr6.02.
• Lengthen the acceleration/deceleration
time of internal positional command speed,
or improve the follow-up characteristic by
adjusting the gain.
• Disable the excess speed deviation
detection (Pr6.02 = 0).
*
Hybrid
deviation
excess error
protection
25 0 Position of load by the external scale and
position of the motor by the encoder slips
larger than the setup pulses with Pr7B
(Setup of hybrid deviation excess) at full-
closed control.
• Check the connection between the motor
and the load.
• Check the connection between the external
scale and the driver.
• Check that the variation of the motor
position (encoder feedback value) and
the load position (external scale feedback
value) is the same sign when you move the
load.
Check that the numerator and denominator
of the external scale division (Pr3.24 and
3.25) and reversal of external scale direction
(Pr3.26) are correctly set.
Over-speed
protection
26 0 The motor rotational speed has exceeded
the setup value of Pr5.13.
• Do not give an excessive speed command.
• Check the command pulse input frequency
and division/multiplication ratio.
• Make a gain adjustment when an overshoot
has occurred due to a poor gain adjustment.
• Make a wiring connection of the encoder as
per the wiring diagram.
2nd Over-
speed
protection
1 The motor rotational speed has exceeded
the setup value of Pr6.15.