FANUC Power Mate i-MODEL H CONNECTION MANUAL (HARDWARE)

5. POWER SUPPLY UNIT CONNECTION
B63173EN/03
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The battery for the absolute pulse coder built into the motor is installed
in the servo amplifier. For how to connect and replace the battery, refer
to the following manuals:
D FANUC SERVO MOTOR α series Maintenance Manual
D FANUC SERVO MOTOR β series Maintenance Manual
NOTE
1 Clearly specify the method of reference position return
operation beforehand to protect against a dead battery or
accident. Before replacing the battery, in particular, check
that the method of reference position return operation is
clearly specified.
2 When the setting indicator is not kept connected with the
Power Mate i, monitor APC alarm type signals APBZn,
APBVn, and APBLn. If an alarm indicating a battery voltage
drop in the absolute pulse coder is detected, display a
battery alarm on the machine operators panel and so on.
For the battery connection method, see Section 9.2.
When the voltage of the battery becomes low, APC alarms 306 to 308 are
displayed on the CRT display. When APC alarm 307 is displayed, replace
the battery as soon as possible. In general, the battery should be replaced
within one or two weeks, however, this depends on the number of pulse
coders used.
If the voltage of the battery becomes any lower, the current positions for
the pulse coders can no longer be maintained. Turning on the power to
the control unit in this state causes APC alarm 300 (reference position
return request alarm) to occur. Return the tool to the reference position
after replacing the battery.
5.9.2
Battery for Absolute
Pulse Coder Built into
the Motor (6 VDC)
5.9.3
Battery for Separate
Absolute Pulse Coders
(6 VDC)

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