No. SX-DSV02472 -
107-
Error No.
Protective
function
Causes
Measures
Main Sub
21
0
Encoder
communication
disconnection
error protection
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.
1
Encoder
communication
error protection
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.
• Secure the power supply for the encoder of 5 VDC ±5%
(4.75 to 5.25 V)...pay an attention especially when the
encoder cables are long.
• Separate the encoder cable and the motor cable if they
are bound together.
• Connect the shield to FG.
23
0
Encoder
communication
data error
protection
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.
• Secure the power supply for the encoder of 5 VDC ±5%
(4.75 to 5.25 V)...pay an attention especially when the
encoder cables are long.
• Separate the encoder cable and the motor cable if they
are bound together.
• Connect the shield to FG.
24
0
Position deviation
excess protection
Deviation pulses have exceeded the setup of Pr 0.14.
1) The motor movement has not followed the command.
2) Setup value of Pr 0.14 (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 Pr 0.13 and Pr 5.22. 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 Pr 0.14.
1
Speed deviation
excess protection
The difference between the internal positional command
speed and actual speed (speed deviation) exceeds the setup
vale of Pr 6.02.
Note: If the internal positional command speed is forcibly set
to 0 due to instantaneous stop caused by the CW/CCW
over-travel inhibit input, the speed deviation rapidly
increases at this moment. Pr 6.02 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 Pr 6.02.
• 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
(Pr 6.02 = 0).
25
0
Hybrid deviation
excess error
protection
(Not supported)
Position of load by the external scale and position of the
motor by the encoder slips larger than the setup pulses with
Pr 3.28 (Setup of hybrid deviation excess) at fullclosed
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 (Pr 3.24 and 3.25) and reversal of
external scale direction (Pr 3.26) are correctly set.
26
0
Over-speed
protection
The motor rotational speed has exceeded the setup value of
Pr 5.13.
• 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.
1
2nd Overspeed
protection
The motor rotational speed has exceeded the setup value of
Pr 6.15.
(To be continued)
R1.05
Motor Business Division, Appliances Company, Panasonic Corporation
