Mitsubishi A1SJH(S8) User Manual page 76

4. CPU MODULE
No. Name
(2) "RUN" LED
(3) "ERROR" LED
(4) RS-422 connector
(5) Cover
(6) Module mounting screw
(7) Battery
(8) Dip switch
(9) Battery connector
Memory cassette installing
(10)
connector
(11) "POWER" LED
(12) Base installation hole
• ON: RUN/STOP key switch is in the "RUN" position, and the sequence
program operation is being executed.
In case of an error which does not stop the operation of sequence
program occurs (refer to Section 11.3), the LED remains on.
• OFF: The "RUN" LED turns off in the following cases:
• The RUN/STOP key switch is set to "STOP".
• Remote STOP is being performed.
• Remote PAUSE is being performed.
• Flashing: The "RUN" LED flashes in the following cases:
• An error which causes operation of the sequence program to stop
has been detected by self-diagnostics.
• During latch clear operation
• ON: An error has been detected by self-diagnostics.
When an error which has been set to LED OFF in the priority order
setting of the LED indication is detected, the LED remains OFF.
• OFF: When failure of the system or target device is detected in normal or by the
instruction.
CHK
• Flashing: Annunciator (F) is turned on in the sequence program.
• Connector to write/read, monitor and test the main program with peripheral
device.
• Cover it with a lid when no peripheral device is to be connected.
• Protective cover for printed-circuit board of CPU module, memory cassette, RS-
422 connector, battery, etc.
• Open the cover to perform the following operations:
Installation and removal of the memory cassette (only for A1SJHCPU)
Setting DIP switches
Connecting the battery to the connector
Battery replacement
• Used to fix a module to the base unit.
• For the retention of data for program, latch range devices and file registers(for
installation and removal of battery, refer to Section 7.2)
• Used to switch the I/O control mode or set memory protect to Enable/Disable.
(Refer to Section 4.5.2, Section 4.5.3 for details of the setting.)
• For the connection with the connector on the battery side.
• Connector to install a memory cassette. (It automatically enters into ROM
operation when a memory cassette is installed.)
• LED for the 5VDC power indicator.
• A hole used to install the base unit to a control panel.(M5 screw)
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Description