Mitsubishi Electric Q26UD(E)HCPU User Manual page 130

No. Name
*2
DIP switches
ON SW
1
2
13)
3
4
5
*3
14)
RUN/STOP switch
15)
RESET/L. CLR switch
16) Module fixing screw hole
17) Module fixing projection
18) Battery connector pin
19) Battery
20) Module mounting lever
*4
21)
BACKUP LED
128
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
OFF OFF
ON OFF
OFF ON
ON ON
(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)
RUN: Executes sequence program operation.
STOP: Stops sequence program operation.
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
*3
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.
Hole for the screw used to fix to the base unit. (M3 × 12 screw)
Projection used to fix the module to the base unit.
For connection of battery lead wires.
(Lead wires are disconnected from the connector when shipping to prevent the battery from
consuming.)
Backup battery for use of program memory, standard RAM, and the backup power time
function.
Lever used to mount the module to the base unit.
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.
Memory copy executing
Memory copy normally
completed
For the memory copy from control system to standby system, refer to the following.
QnPRHCPU User's Manual (Redundant System)
Application
Parameter Drive
Program memory (Drive 0)
SRAM card (Drive 1)
Flash card/ATA card (Drive 2)
Standard ROM (Drive 4)
In backup mode
Control system Standby system
ON (red) Flashing (red)
ON (red) ON (red)
In separate mode
Control system Standby system
ON (orange) Flashing (orange)
ON (orange) ON (orange)