Battery Replacement - YASKAWA E-V-MD Series User Manual

5 Wiring and Connections

5.5.4 Battery Replacement

5.5.4

Battery Replacement

If the battery voltage drops to approximately 2.7 V or less, an absolute encoder battery error alarm (A.830) or
an absolute encoder battery error warning (A.930) will be displayed.
If this alarm or warning is displayed, replace the batteries using the following procedure.
Use Pn008.0 to set either an alarm (A.830) or a warning (A.930).
Pn008
• If Pn008.0 is set to 0
The battery voltage is monitored for approx. 4 seconds after the control power supply has been ON for
approx. 5 seconds.
No battery-related alarm will be displayed even if the battery voltage drops below the specified value after
these 4 seconds.
• If Pn008.0 is set to 1
The battery voltage is monitored for continuously after the control power supply has been ON for approx. 5
seconds.
Control power
Alarm A.830
(Pn008.0 = 0)
Warning A.930
(Pn008.0 = 1)
5-22
• If you use the encoder as an absolute encoder, use one of the encoder cables with a
battery case specified by Yaskawa. Refer to 2.4.2 Servomotor/Encoder Relay Cables
for the model numbers of the cables.
Parameter
n.0
Outputs the alarm A.830 when the battery voltage
[Factory
drops.
setting]
Outputs the warning A.930 when the battery voltage
n.1
drops.
ON
OFF
5 s max.
Meaning
4 s
Battery
voltage being
monitored
Battery voltage
being monitored
Classification
When Enabled
After restart Setup