Omron CS1W-MCH71 MOTION CONTROL UNIT - 09-2004 Manual page 627

Axis-related Alarm Codes
Name Error log
Error Detail
code
Command 037Ah 300Ch 300Ch A MECHATROLINK command could not be
timeout -
0399h
Absolute 300Dh 300Dh Data from the ABS encoder could not be
encoder error
604
Alarm
code
code
completed within a fixed period of time (10
seconds). The followings are the possible
causes:
• Disconnection, breakage of MECHA-
TROLINK cable
Check the MECHATROLINK cable.
• Communications error caused by noise
Remove the cause of the noise.
When this error persists even after provid-
ing these remedies, the Driver (NS115) or
MC Unit may be broken. Replace the bro-
ken one with a new unit.
processed normally.
• Initial multi-turn value exceeds the multi-
turn limit.
Set the same value in the driver parame-
ter [Pn205: Multi-turn limit setting] and the
motor parameter [900C: Multi-turn limit].
After the setting is completed, restore the
power, reset the alarm, and perform the
origin setting.
• After origin setting, the following values
related to B/A were changed.
Note B = No. of encoder pulses × P5AA05
A = P5AA04 × P5AA06
B/A is integer calculation and the
result is to be reduced.
After the change was made (saving
to F-ROM), restore the power, reset
the alarm, and perform origin setting.
• The multi-turn limit value in the driver
parameter or the motor parameter was
changed after origin setting.
After the change was made (saving to F-
ROM), restore the power, reset the alarm,
and perform origin setting. (When the
multi-turn value of the driver parameter
was changed, make sure to perform
"Absolute encoder multi-turn amount set-
ting change" on the driver.)
• Servo driver is set as an incremental
encoder. Set the driver parameter Pn002
digit No. 2 to "0" (used as an absolute
encoder) and restore the power.
• Disconnection, breakage of encoder
cable
Check the encoder cable.
• Communications error caused by noise
Remove the cause of the noise.
When this error persists even after provid-
ing these remedies, the encoder or MC
Unit may be broken. Replace the broken
one with a new unit.
Cause and remedy
Section 11-6
Timing Rank Reset
Any time Servo OFF Enabled
When Servo OFF Enabled
synchro-
nous
commu-
nications
starts