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13. ALARM NUMBER

The position board can raise the following four alarms: system alarm, servo alarm, operation alarm, and
system error. The alarm numbers are represented in hexadecimal numbers.

API LIBRARY

Use the sscGetAlarm/sscResetAlarm functions to get/reset the alarm number.

Specify the following in the argument for the alarm type.

System alarm : SSC_ALARM_SYSTEM
Servo alarm : SSC_ALARM_SERVO
Operation alarm: SSC_ALARM_OPERATION

13.1 System alarm

Alarm

No.

Content

Detail

No.

Cause of occurrence

Procedure

Operation cycle
alarm

An operation cycle alarm
occurred.

Reexamine the following.
(1) Make the control cycle setting longer.

(Example. When control cycle is 0.44ms, change
to 0.88ms)

(2) Decrease the number of control axes.
(3) Reexamine the operation pattern so that the

timing of the operation startup of each axis does
not overlap.

Number of write
accesses to flash
ROM error

The number of write accesses to
flash ROM by parameter
backups exceeds 100,000 times.

Data cannot be written to the flash ROM because the
flash ROM is expected to reach its service life.

The number of write accesses to
flash ROM by parameter
backups exceeds 25 times after
system preparation completion.

Check for unnecessary parameter backups. To
perform the parameter backup again, reset the
system alarm.

(Note)

Parameter error

Parameter setting is erroneous.

Set the setting to a correct value within the parameter
limits.

(Note)

Mark detection
setting error

When mark detection is enabled,
the total number of continuous
latch data storages (parameter
No.02B0, No.02B2) for the whole
system exceeds 64.

Set the total number of continuous latch data
storages (parameter No.02B0, No.02B2) for the
whole system to within 64.

Note. The system alarm cannot be reset.