5-5
5-2 Alarms
If the Servo Driver detects an error, ALM (alarm output) and ALO1 to ALO3 (alarm
codes) are output, the power drive circuit in the Servo Driver turns OFF, and the alarm is
displayed. If the Servo Driver detects a warning (e.g., overload warning or regenerative
overload warning), WARN (warning output) and ALO1 to ALO3 (warning codes) are out-
put, and the warning is displayed. (Operation continues.)
Note 1. Warning outputs and warning codes are output only if the parameters have been set
(Pn50F.3, Pn001.1).
Note 2. If an Option Unit is installed, an Option Unit error code may be output. For details, also refer to
the operation manual for the Option Unit.
When a Yaskawa JUSP-NS115 MECHATROLINK-II Option Unit (OMRON model number:
FNY-NS115) is mounted to the Servo Driver, there are other Option Board alarms and warn-
ings in addition to those listed below. For details, refer to 6-5 Alarms and Warnings when a
JUSP-NS115 MECHATROLINK-II Option Unit is Mounted.
Note 3. Refer to 5-3-1 Error Diagnosis Using Alarm Display for appropriate alarm countermeasures.
Note 4. Cancel the alarm using one of the following methods. (Remove the cause of the alarm first.)
S Input a RESET (alarm reset) signal.
S Turn OFF the power supply, then turn it ON again.
S Press the RESET Key on the Parameter Unit, or press the Up and Down Keys together on the
front panel. The following alarms can only be cancelled by turning OFF the power supply, then
turning it ON again: A.02, A.04, A.10, A.81, A.82, A.83, A.84, A.C9, A.Cb, A.CC, and A.E7.
Note 5. If you cancel an alarm while RUN is turned ON, the Servo Driver will start as soon as the alarm
is cleared, which is dangerous. Be sure to turn OFF the RUN command before cancelling the
alarm. If the RUN command is ON, or the servo is always ON (setting Pn50A.1 = 7), first check
safety sufficiently before cancelling the alarm.
H Alarm Table
Display
Alarm code
Error detection
ALO1 ALO2 ALO3
function
OFF OFF OFF Parameter corruption The checksum for the parameters read
from the EEPROM does not match.
OFF OFF OFF Main circuit detection
error
There is an error in the detection data for
the power supply circuit.
OFF OFF OFF Parameter setting er-
ror
Incorrect parameter setting.
OFF OFF OFF Motor mismatch The Servomotor does not match the Servo
Driver.
ON OFF OFF Overcurrent Overcurrent detected, or improper radiation
shield temperature rise detected. (1.5 to
3 kW only).
ON ON OFF Regeneration error Regeneration circuit damaged due to large
amount of regenerative energy.
ON ON OFF Regeneration over-
load
Regenerative energy exceeded the regen-
eration resistance.
Troubleshooting Chapter 5
To Next Page
Loading...
Need help?
General
