Yamaha SRCP - Manual (Page 224)

13-
6
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.
16
17
18
19
20
21
22
23
24
25
26
27
Alarm Message
ABNORMAL
VOLTAGE
SYSTEM
FAULT 2
FEEDBACK
ERROR 3
SYSTEM
FAULT 3
Not used
Not used
VERSION
MISMATCH
Not used
Not used
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
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