Shenzhen Just Motion Control electromechanics co., ltd

0755-26509689

Absolute encoder turns

2128

Multi-turn value range: 0-65535

11.1.4 Alarm handling related to absolute encoder

Alarm

Code

Fault alarm reason

Fault alarm check

disposal measures

E.643 Low external battery voltage

Check the voltage of the Replace the battery and clear the alarm

when bus encoder is set to

multi-turn absolute value

external battery of the

encoder and confirm

that it is higher than

3.0V

with F06.EN0 (see chapter 8.4)

E.644

E.645

Abnormal reading of multi-lap

data, or lap value exceeding ±

32768

Check d21.ASH (see

chapter 8.3) multi-turn

value

If the multiturn value is greater than

32767, clear the multiturn data via

F07.EN1 (see chapter 8.4)

A.930

ABSOLUTE ENCODER

BATTERY FAULT

Check voltage of

external battery of

encoder

Replace the battery and clear the alarm

with F06.EN0 (see chapter 8.4)

11.1.5 Absolute Encoder Battery Replacement

To avoid absolute position data loss, replace the battery if the drive is in any of the following situations.

1. When the driver displays A.930, it represents the low battery voltage warning. The battery must be

replaced in time to avoid the loss of absolute position data of the motor. After replacing the battery, use the auxiliary

function F06.EN0 to clear the alarm

2. When the driver displays E.643, it indicates that the battery voltage is low, and the number of motor turns

cannot be recorded normally when this alarm occurs, and the battery must be replaced immediately. After the battery

is replaced, the alarm is cleared using the auxiliary function F06.EN0 after the battery is replaced, and the origin of

the device must be verified. At the same time, use the auxiliary function F07.EN1 to clear the motor multi-turn data

Note: It isrecommended to replace the battery with the drive powered on to avoid loss of absolute position data

181