Shihlin electric SDP Series, Manual

Page: 459 / 555

446
AL.2C Absolute encoder error 3
Alarm cause Checking method Corrective action
Replace the battery when the drive
control power is OFF. Do not replace or
remove the battery when
the drive control power is
OFF. Re-execute homing
and initialize absolute
coordinate according
to chapter 14 or PA29
description.
After activating the absolute
function, the absolute position
coordinate initialization has not
been completed.
1.
Install the battery
2.
Check the connection
between the battery
external box and
drive.
3.
Check the encoder
wiring
Execute homing and
initialize absolute
coordinate according
to chapter 14 or PA29
description.
AL.2D Encoder battery low voltage
Alarm cause Checking method Corrective action
Encoder backup battery voltage is
too low.
1.
Check whether the
battery voltage is lower
than 3.0V (TYP).
2.
Check if the battery
voltage is lower than
3.0V(TYP)
Replace the battery
with a new one
when the drive
control power is ON
and re-power on
servo drive to
eliminate the AL.2D.
AL.2E Control circuit error
Alarm cause Checking method Corrective action
When the motor is running with
large external load, the servo ON
(SON) state is instantly turned
OFF
→ ON.
Check whether the servo
ON (SON) is operate by
mistake. Correctly operate
the servo ON (SON)
command.
The drive current feedback is
abnormal. Restart the drive. If the issue persists, send your
drive back to the distributor or manufacturer.