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Encoder status (1 means the occurrence of an error)
Bit 7
Bit 6
Bit 5
Bit 7
Bit 6
Bit 5
0
0
For details of the encoder status, see Encoder Specifications.
・ For details of the transfer of absolute data, see Communication Specifications.
・ When transferring absolute data, enter Servo-OFF and fix the motor using a brake.
Installing the Battery
The backup battery is used for saving the position data of the absolute encoder when the
main power of the driver is off. Use one of the following methods for connecting the battery.
1 Install the battery at the controller side.
2 Install the battery in the driver.
3 Install the battery at the motor side.
If the encoder cable must be removed and then reconnected at the installation site, apply the
method 3 (Install the battery at the motor side) so that the encoder can be powered continually.
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Encoder status (L)
Bit 4
Bit 3
Bit 2
0
Encoder status (H)
Bit 4
Bit 3
Bit 2
0
0
Bit 1
Bit 0
Over-speed
Full absolute status
Count error
Counter overflow
Multi-turn
counter error
Battery error
Battery alarm
Bit 1
Bit 0
0
0
Battery error
Occurrence of battery alarm, multi-turn counter error,
counter over, counter error, full absolute status or
over-speed
− App. 21 −
Err42
(absolute over-speed error)
Err47
(absolute status error)
Err44
(absolute single-turn counter error)
Err41
(absolute counter overflow error)
Err45
(absolute multi-turn counter error)
Err40
(absolute system down error)
Battery alarm
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