Motoman PX2750, Manual

Page: 507 / 611

9.1 Replacing XRC Parts
9-2
9.1.1
Replacing Parts of the CPU Rack
CPU rack (JZNC-XRK01B-
.
) is comprised of the control power supply unit, the rack for the
various circuit boards and system control boards.
CPU Rack Configuration (JZNC-XRK01B-
.
)
"
Replacing the Battery
Replace the battery within 40 hours if a battery alarm occurs. If it is within 30 minute after tur-
ing on the electricity after the power was turned off for more than 2 days, replace the battery
immediately.
(The battery alarms appear on the programing pendant display and LED on the system con-
trol board is turned on.)
Replacement Procedure
1. Disconnect the battery connector (BAT) and remove the battery.
2. Mount the new battery and connect the battery connector.
Although the CMOS memory is backed up by super capacitor, the battery must be
replaced as soon as the battery alarm occurs. The job data and other data may be lost if
the battery is left for more than 40 hours.
(CN05)
AC200V Input Connector
(From Power Unit)
(CN04)
PC Card
Battery Alarm
(CN03)
RS232C Connector
(CN03), (CN02)
DC24V Output Connector
(To Programming Pendant)
Battery
Monitor, Alarm Display
(CN01)
DC24V, DC5V Output Connector
(To XIU unit)
Control Power Unit
CPS-150F
System Control Board
JANCD-XCP01
(CN04)
Control Power ON/OFF
N OT E