
5.PERIODIC MAINTENANCE OF SERVO AMPLIFIER START-UP PROCEDURE B-65395EN/01
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[Connection scheme 2] Incorporating each SVM with batteries
SVM
Battery
A06B-6093-K001
Battery case
A06B-6093-K002
SVM
Battery
A06B-6093-K001
Battery case
A06B-6093-K002
CX5X CX5X
• If a low battery voltage or a battery voltage of 0 V is indicated by
an APC (absolute Pulsecoder) alarm, replace the battery
(A06B-6073-K001).
If a battery voltage of 0 V is indicated, you need to make a zero
point return.
• The absolute Pulsecoder of the βis series servo motor (β0.4/5000i
S
to β22/2000i
S) is incorporated with a backup capacitor as standard.
This backup capacitor enables an absolute position detection to be
continued for about 10 minutes. Therefore, no zero point return
need be performed if the time during which servo amplifier power
is kept off for battery replacement is within 10 minutes.
The Pulsecoder of the β series servo motors and some of the βi
S
series servo motors (β0.2/5000i
S to β0.3/5000iS) does not include
a backup capacitor. Be careful when replacing the battery for this
Pulsecoder. See [Caution No. 1 for battery replacement] at the end
of this section for details.
• The battery service life is about two years for the βi
S series servo
motors (β0.4/5000i
S to β22/2000iS). For the β series servo motors
and some of the βi
S series servo motors (β0.2/5000iS to
β0.3/5000i
S), the battery service life is about one year.
FANUC recommends that you replace the batteries periodically
according to the battery service life.
• The built-in batteries are not commercially available. They must
be purchased from FANUC. So, FANUC recommends that you
keep spares.