Troubleshooting, 2 alarm and countermeasures – Yamaha SRCP User Manual

Page 224

13-

TROUBLESHOOTING

13-2 Alarm and Countermeasures

Action

Lower the operation duty on the
robot, or install a cooling fan.

Check the power supply voltage.

If the error occurs frequently, then the
LSI is probably defective, so replace
the SRCP controller.

Remove the obstacle or correct the
point data or origin position.
Check the motor wire connection.
Adjust the mechanical lockup
detection sensitivity (PRM31).
Initialize the parameters.

Check the environment for noise.

If the error occurs frequently, then the
CPU is defective. Replace the SRCP
controller.

Replace the PB.

Check the motor wire connection.

Initialize the parameters.
Check the power supply voltage.
Check the power supply capacity. If
too low, use a power supply of larger
capacity.

Check the motor wire connection.

Check the position signal wire
connection.
Initialize the parameters.

Alarm No.

Alarm Message

ABNORMAL
VOLTAGE

SYSTEM
FAULT 2

FEEDBACK
ERROR 3

SYSTEM
FAULT 3

Not used

VERSION
MISMATCH

Not used

FEEDBACK
ERROR 4

POLE
SEARCH
ERROR

Meaning

Excessive voltage
(higher than
420V) generated

Controller's
internal LSI error

Mechanical
lockup

CPU error

Wrong
combination of
PB and controller

Motor wire
breakage or
misconnection

Failed to detect
magnetic pole.

Possible Cause

Rise in regenerative absorption
resistor temperature (above
120

°C).

Wrong power supply voltage

Internal LSI failure or
malfunction

The robot slider struck on an
obstacle or mechanical damper.
Motor is miswired.
Mechanical lockup detection
sensitivity is too high.
Parameter error

External noise or other factors
have disrupted software program.
CPU failure or malfunction

The PB used does not match the
controller.

Motor wire is broken or connected
wrong.
Parameter error
Wrong power supply voltage
Insufficient power supply capacity

Motor wire is broken or
misconnected
Position signal wire is
misconnected.
Parameter error