Omron OMNUC W Series User Manual page 366

Troubleshooting
Display Display Alarm code
ALO1
OFF
OFF
---
---
Note 1. Alarm codes designated "---" are undefined.
Note 2. When an alarm occurs, ALM (alarm output) is turned OFF.
H Warning Table
Alarm code
Display p y
ALO1
ON
OFF
ON
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).
5-8
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Error detection Error detection
function function
ALO2 ALO3
ON ON Option detection error
ON OFF Missing phase de-
tected.
--- --- Parameter Unit trans-
mission error 1
--- --- Parameter Unit trans-
mission error 2
Warning detection
ALO2 ALO3
OFF OFF Overload
ON OFF Regeneration overload
ON OFF Battery low level
Detects an error if an option board is not
connected.
Main-circuit power supply missing phase or
disconnection detected.
Data could not be transmitted after the
power supply was turned ON.
Transmission timeout error
g
function f
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.
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.
Battery has reached a low level of
2.7 V DC.
Chapter 5
Cause of error Cause of error
Meaning g