
A-83113E FANUC AC SERVO MOTOR βis SERIES
- 4 -
4 FEEDBACK SENSOR
β0.4/5000is , β0.2/5000is and β1/5000is contain a β64iA Pulsecoder to which the following new functions are
added.
Intelligent function (ID information, thermal information)
Backup capacitor installed
Types of Pulsecoders
The following table lists the types of Pulsecoders.
Pulsecoder
type
Resolution
[Division/rev]
Absolute/
incremental
Backup
capacitor
Applicable motor
βA64B 65,536 Absolute -
β0.2iS, β0.3iS
β64iA
65,536 Absolute O
β0.4iS - β1iS
Absolute-type Pulsecoder
When the NC is turned off, the Pulsecoder position detection function is backed up by battery.
So, when the NC is next turned on, the operator does not have to perform reference position
return.
For backup, a battery unit must be installed in the NC or servo amplifier.
If a low-battery indication appears on the NC, renew the battery as soon as possible.
For the β64i
A Pulsecoder, the function is backed up for about 10 minutes by a backup capacitor
when the battery is removed. In the backup status, the battery can be replaced when the power to
the NC or servo amplifier is off.
The operator does not also have to perform reference position return after replacing the feedback
cable or servo amplifier. Backup capacitor is not installed in the βA64B.