5-8
Display
Cause of error
Error detection
function
Alarm code
Display
Cause of error
Error detection
function
ALO3
ALO2
ALO1
OFF
ON
ON
Option detection error Detects an error if an option board is not
connected.
OFF
ON
OFF
Missing phase de-
tected.
Main-circuit power supply missing phase or
disconnection detected.
---
---
---
Parameter Unit trans-
mission error 1
Data could not be transmitted after the
power supply was turned ON.
---
---
---
Parameter Unit trans-
mission error 2
Transmission timeout error
Note 1.
Alarm codes designated “---” are undefined.
Note 2.
When an alarm occurs, ALM (alarm output) is turned OFF.
H
Warning Table
Display
Alarm code
Warning detection
f
Meaning
p y
ALO1
ALO2
ALO3
g
function
g
ON
OFF
OFF
Overload
When a warning occurs before the over-
load alarm (A.71, A.72) is reached, the
alarm may be generated if the Servomo-
tor continues to operate.
OFF
ON
OFF
Regeneration overload
When a warning occurs before the re-
generation overload alarm (A.32) is
reached, the alarm may be generated if
the Servomotor continues to operate.
ON
ON
OFF
Battery low level
Battery has reached a low level of
2.7 V DC.
Note 1.
Alarm codes designated “---” are undefined.
Note 2.
When a warning occurs, WARN (warning output) is turned OFF.
Note 3.
When Pn001.3 (warning code output selection) is set to 1, warning codes will be output (de-
fault setting is 1).
Note 4.
To output warnings, allocate the output terminal using Pn50F.3 (WARN signal output terminal
allocation).
Troubleshooting
Chapter 5
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