Estun Summa ED3S, Руководство по эксплуатации продукта

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Summa Series Servodrive Product Manual
Application Functions
Document Version: V1.01
(Dec, 2019)
© 2019 ESTUN Automation Co., Ltd. All right reserved. 7-10
7.7 Encoder Setting
7.7.1 Absolute Encoder Selection
The absolute encoder records the current position of the stop position even when the power supply is
OFF.
With a system that uses an absolute encoder, the host controller can monitor the current position.
Therefore, it is not necessary to perform an origin return operation when the power supply to the system
is turned ON.
There are two types of encoders for the Motors. The usage of the encoder is specified in Pn002.2.
Parameter Setting Meaning When Enabled
Pn002.2
0 [Default] Use the encoder as an absolute encoder.
After restart
1 Use the encoder as an incremental encoder.
IMPORTANT
The default setting of the Drive uses an absolute encoder. If the Motor
encoder is an incremental encoder, an A47 alarm or an A48 alarm will occur
when the Drive is first powered up.
In this case, set Pn002.2=1 and restart the Drive.
7.7.2 Encoder Alarm Resetting
It is necessary to connect a battery case for the absolute encoder, refers to the section Battery Case
Connection in 3.5 Wiring the Encoder .
A48 Alarm Occurred
When the voltage of the encoder battery is lower than 3V, an alarm A48 will occur. In this case, follow the
below methods to troubleshooting.

Turn ON only the control power supply to the Drive, and then, replace the battery case.
Please contact ESTUN or the Authorized Distributor to purchase a new battery box if necessary.

Perform the Fn011 on Panel Operator, refers to the section Fn011 (Absolute encoder alarm reset) .

Repower up the Drive, and the alarm A48 no longer occurs indicating the fault has been solved.
A47 Alarm Occurred
When the voltage of the encoder battery is lower than 2.45V, an alarm A47 will occur. In this case, the
multi-turn data in the encoder has been lost, and you shall follow the below methods to troubleshooting.

Turn ON only the control power supply to the Drive, and then, replace the battery case.
Please contact ESTUN or the Authorized Distributor to purchase a new battery box if necessary.

Perform the Fn011 on Panel Operator, refers to the section Fn011 (Absolute encoder alarm reset) .

Perform the Fn010 on Panel Operator, refers to the section Fn010 (Absolute encoder multi-turn
reset) .

Repower up the Drive, and the alarm A48 or A47 no longer occurs indicating the fault has been
solved.