Mitsubishi Electric Q26UD(E)HCPU - Page 130

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13)
DIP switches
*2
Used to set the items for operation of the CPU module.
For the system protection and the valid parameter drives of the DIP switches, refer to the
following.
Qn(H)/QnPH/QnPRHCPU User's Manual (Function Explanation, Program
Fundamentals)
SW1 : Used to set system protection. Inhibits all the writing and control instructions to the CPU
module. (Factory-default is off)
Off: No protection
On: Protection
SW2, SW3 : Used to specify parameter-valid drive.
(Both SW2 and SW3 are preset to off as factory default)
SW2 SW3 Parameter Drive
OFF OFF Program memory (Drive 0)
ON OFF SRAM card (Drive 1)
OFF ON Flash card/ATA card (Drive 2)
ON ON Standard ROM (Drive 4)
(Parameters cannot be stored in standard RAM (Drive 3).)
SW4: Must not be used. Normally off. (Factory default: Off)
SW5: Must not be used. Normally off. (Factory default: Off)
14)
RUN/STOP switch
*3
RUN: Executes sequence program operation.
STOP: Stops sequence program operation.
15)
RESET/L. CLR switch
*3
RESET:
Used to perform hardware reset, operation fault rest, operation initialization, etc.
(If this switch is left in the RESET position, the whole system will be reset and the system
will not operate properly. After performing reset, always return this switch to the neutral
position.)
L. CLR:
Used to turn "Off" or clear to "zero" all latch area data set in the parameter.
Used to clear the sampling trace settings.
16) Module fixing screw hole Hole for the screw used to fix to the base unit. (M3 × 12 screw)
17) Module fixing projection Projection used to fix the module to the base unit.
18) Battery connector pin
For connection of battery lead wires.
(Lead wires are disconnected from the connector when shipping to prevent the battery from
consuming.)
19) Battery
Backup battery for use of program memory, standard RAM, and the backup power time
function.
20) Module mounting lever Lever used to mount the module to the base unit.
21)
BACKUP LED
*4
Indicates the backup or separate mode while the system is running normally.
On (green): Backup mode
On (red):The status in which control (RUN) cannot be continued by system switching
On (orange):Separate mode
Off: Debug mode
The LED indication is as listed below when the memory copy from control system to standby
system is executed.
For the memory copy from control system to standby system, refer to the following.
QnPRHCPU User's Manual (Redundant System)
No. Name Application
1
2
3
4
5
ON SW
In backup mode In separate mode
Memory copy executing
Memory copy normally
completed
Control system Standby system Control system Standby system
ON (red) ON (orange)
ON (red) ON (orange)
Flashing (red) Flashing (orange)
ON (red) ON (orange)