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7.11.5 Precautions for Use of the Battery Box
E731.0 (Encoder battery fault) will be reported when the battery is connected for the first time. Set
200D-15h (Absolute encoder reset selection) to 1 (Reset the encoder fault) to reset the fault, and then
perform homing.
When the battery voltage detected is smaller than 3.0 V, Er.730 (Encoder battery warning) occurs.
Replace the battery according to the following procedures:
Step 1: Power on the servo drive and keep it in non-running state.
Step 2: Replace the battery.
Step 3: The servo drive automatically remove E730.0 (Encoder battery warning). If there is no other
warning, make the servo drive run normally.
If you replace the battery after power-off, E731.0 (Encoder battery fault) will be reported and an abrupt
change will occur on the multi-turn data. In this case, set 200D-15h to 1 to reset the fault, and then
perform homing again.
When the servo drive is in the power-down state, ensure the maximum motor speed does not exceed
6000 RPM so that the encoder position can be recorded accurately.
Keep the battery box in environments within the required ambient temperature range and ensure the
battery is in reliable contact and has sufficient power capacity. Otherwise, encoder data loss may occur.
Related parameter
200D-15h
Name
Absolute encoder reset
selection
Setting
Condition &
Effective Time
At stop &
Immediately
Data
Structure
-
Data
Type
Uint16
Access
RW
Mapping
-
Related Mode
All
Value
Range
0 to 2 Default
0
This parameter is used to reset the encoder fault or the multi-turn data.
Value
Description
0
No operation
1
Reset the encoder fault
2
Reset the encoder fault and multi-turn data
NOTE
The absolute position of the encoder changes abruptly after reset of the multi-turn data feedback. In
this case, perform mechanical homing.