Omron CS1W-MC221 - 02-2008 Operation Manual page 571

Axis Error Codes
Code Error
0049 Absolute encoder error
(0073) (ABS I/F ERR)
004A Absolute data error
(0074) (ABS DATA ERROR)
004D Present position counter
(0077) overflow
(PRESPOS CNT OVER)
544
Error processing
No absolute value data was sent from the Absolute Encoder.
Communications error occurred while receiving data.
Servo Driver parameter setting error
The MC Unit parameters were set incorrectly.
Possible causes are as follows:
Encoder cable was disconnected or broken.
Communications are faulty due to noise.
Encoder is faulty.
MC Unit is faulty.
Servo Driver parameters are incorrect.
Check the encoder cable and try again. Remove any possible
causes of noise.
The parameters might be incorrectly set for an incremental
encoder. Change to the following settings.
U-series Servo Driver
Cn-01 bit 1 = 0
Cn-01 bit E = 1
W-series Servo Driver
Pn002 digit number 2 = 0
G-series Servo Driver
Pn0B = 0 or 2
If the same error occurs again, either the encoder or MC Unit
is faulty. Replace the encoder or MC Unit.
The model of Servo Driver and the ABS/INC parameter set-
ting in the MC Unit do not match.
When using a U-series or W-series Servo Driver, set the
ABS/INC parameter to 1 (absolute encoder for U or W
Series. When using a G-series Servo Driver, set the
ABS/INC parameter to 2 (absolute encoder for G
Series).
Note: A Motion Control Unit with unit version 1.1 or later is
required to use the absolute encoder functionality of
the OMNUC G Series.
Absolute value data was properly (without any
communications error) sent from the absolute encoder, but
the data was illegal.
Possible causes are as follows:
Encoder cable was disconnected or broken.
Communications are faulty due to noise.
Encoder is faulty.
MC Unit is faulty.
Servo Driver parameters are incorrect.
Check the encoder cable and try again.
Use the following settings if an OMRON U-series Servo
Driver set for an incremental encoder is being used:
Cn-01 bit 1 = 0
Cn-01 bit E = 1
Cn-02 bit 1 = 0
Remove any possible causes of noise.
If the same error occurs again, either the encoder or MC Unit
is faulty. Replace the encoder or MC Unit.
An overflow (2,147,483,647 pulses) occurred in the present
position counter.
This error could be caused by a faulty encoder, a
disconnected/broken encoder cable, the axis moving beyond
the counter's range, or electrical noise. Try executing the
command again after correcting the problem.
Section 12-5
Stop method
Deceleration
stop
Deceleration
stop
Accumulated
pulse