R7A-CEA005S Omron, R7A-CEA005S Datasheet - Page 227
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R7A-CEA005S
Manufacturer Part Number
R7A-CEA005S
Description
CABLE ENCODER & PWR W/O BRAKE 5M
Manufacturer
Omron
Datasheet
1.R7A-CNA02R.pdf
(252 pages)
Specifications of R7A-CEA005S
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
R7ACEA005S
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Troubleshooting
The Servomotor
does not oper-
ate even when a
command is
given.
The Servomotor
operates
momentarily, but
then it does not
operate.
Servomotor
operation is
unstable.
Symptom
The RUN signal is OFF.
The deviation counter
reset input (ECRST) is
ON.
An error occurred with
the RESET (alarm reset)
signal ON.
Function switch settings
are incorrect.
Function switch 3 (com-
mand pulse input) setting
is incorrect. (When func-
tion switches are being
used.)
Pn200.0 (command
pulse mode) setting is
incorrect. (When param-
eter setting is being
used.)
Servomotor power lines
are incorrectly wired.
Command pulse is incor-
rectly wired.
The Servomotor power
lines or encoder lines are
wired incorrectly.
The command pulse is
more than 250 kpps.
The Servomotor power
lines or encoder lines are
wired incorrectly.
There are eccentricities
or looseness in the cou-
pling connecting the Ser-
vomotor shaft and the
mechanical system, or
there are load torque
fluctuations according to
how the pulley gears are
engaging.
Gain is wrong.
Probable cause
Check the RUN signal’s ON and
OFF operation.
Check the ON/OFF status of the
ECRST signal.
Pn200.1 (deviation counter reset)
setting is incorrect.
Check the ON/OFF status of the
RESET signal.
Check function switch 6 (switch/
parameter setting).
Check the Controller’s command
pulse type and the Servo Driver’s
command pulse mode.
Check the Controller’s command
pulse type and the Servo Driver’s
command pulse mode.
Check Servomotor power lines.
Check the command pulse wiring. Rewire correctly.
Check the command pulse volt-
age.
Check the Servomotor power line
U, V, and W phases, and the
encoder line wiring.
Check the Controller’s command
pulse frequency.
Check the Servomotor power line
U, V, and W phases, and the
encoder line wiring.
Check the machinery.
Try operating the Servomotor with-
out a load.
---
Items to check
Input the RUN signal.
Correct the wiring.
Turn OFF the ECRST sig-
nal.
Correct the wiring.
Reset Pn200.1 to match the
Controller.
Turn the RESET signal OFF
and take measures accord-
ing to the alarm display.
If using function switch 3
(command pulse input set-
ting), turn OFF switch 6.
If using parameter Pn200.0,
turn ON switch 6.
Set the mode to match the
Controller’s command pulse
type.
Set the mode to match the
Controller’s command pulse
type.
Rewire correctly.
Connect a resistor match-
ing the voltage.
Correct the wiring.
Reset the command pulse
to 250 kpps max.
Correct the wiring.
Adjust the machinery.
Use autotuning.
Adjust the gain manually.
Countermeasures
Chapter 5
5-13