Mitsubishi Electric MELSEC Q Series User Manual page 487

(6) Redundant power supply module information
Number Name
Power supply off Power supply off
SD1780
detection status detection status
Power supply Power supply
SD1781 failure detection failure detection
status status
Description
• The redundant power supply module (Q64RP) power OFF status is
stored as indicated below.
detection status of
b15
SD1780
• "0" is stored when the main base unit is not the redundant main
base unit (Q38RB).
• When configuring multiple CPU, the status is stored to 1st CPU
module.
• The fault detected status of the redundant power supply module
(Q64RP) is stored as indicated below.
• When configuring multiple CPU, the status is stored to 1st CPU
module.
Failure detection
b15
SD1781
• "0" is stored when the main base unit is not the redundant main
base unit (Q38RB).
• When configuring multiple CPU, the status is stored to 1st CPU
module.
Detailed description
Input power OFF Input power OFF
detection status of
1 1 Each bit
power supply 2 power supply 1
0: Input power ON status/
No redundant power
to b9 b8 b7 to b1 b0
supply module
1: Input power OFF status
to to
Main base unit
1st extension base
7th extension base
Main base unit
1st extension base
7th extension base
Failure detection
Each bit
status of power status of power
0: Redundant power supply
1 1
supply 2 supply 1
module failure not
detected/No redundant power
supply module
to b8 b7 to b0
1: Redundant power supply
to to
module failure detected
(Detectable for redundant
power supply module only)
Main base unit
1st extension base
7st extension base
Main base unit
1st extension base
7st extension base
APPENDICES
Setting side
(setting time)
S
:
(System)
:
S
(System)
:
:
A
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