Mitsubishi Electric Q06UDVCPU - Page 497

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APPENDICES
A
Appendix 2 List of Special Relay Areas
(19)Redundant power supply module information
*1 The "power supply 1" indicates the redundant power supply module mounted on the POWER 1 slot of the redundant
base unit (Q38RB/Q68RB/Q65WRB).
*2 The "power supply 2" indicates the redundant power supply module mounted on the POWER 2 slot of the redundant
base unit (Q38RB/68RB/Q65WRB).
*3 Modules whose serial number (first five digits) is "07032" or later
In a multiple CPU system, the serial number (first five digits) of all the CPU modules must be "07032" or later.
*4 Modules whose serial number (first five digits) is "10042" or later
Number Name Meaning Explanation
Set by
(When Set)
Corresponding
ACPU
M9
Corresponding
CPU
SM1780
Power supply off
detection flag
OFF: No redundant
power supply
module with input
power OFF
detected
ON: Redundant power
supply module
with input power
OFF detected
• Turns on when one or more redundant
power supply modules with input power
off are detected.
• Turns on if any of SD1780 bits is on.
• Turns off if all bits of SD1780 are off.
• This relay turns off when the main base
unit is not the redundant main base unit
(Q38RB).
• When the multiple CPU system is
configured, the flags are stored only to the
CPU No.1.
S (Every
END
processing)
New
Qn(H)
*3
QnPH
*3
QnPRH
QnU
*4
SM1781
Power supply
failure detection
flag
OFF: No faulty
redundant power
supply module
detected
ON: Faulty redundant
power supply
module detected
• Turns on when one or more faulty
redundant power supply modules are
detected.
• Turns on if any of SD1781 bits is on.
• Turns off if all bits of SD1781 are off.
• This relay turns off when the main base
unit is not the redundant main base unit
(Q38RB).
• When the multiple CPU system is
configured, the flags are stored only to the
CPU No.1.
S (Every
END
processing)
New
Qn(H)
*3
QnPH
*3
QnPRH
QnU
*4
SM1782
Momentary
power failure
detection flag for
power supply 1
*1
OFF: No momentary
power failure
detected
ON: Momentary power
failure detected
• Turns on when a momentary power failure
of the input power supply to the power
supply 1 or 2 is detected one or more
times. After turning on, this relay remains
on even if the power supply recovers from
the momentary power failure.
• Turns off the flags (SM1782 and SM1783)
of the power supply 1 and 2 when the
CPU module starts.
• When the input power to one of the
redundant power supply modules turns
off, the corresponding flag turns off.
• This relay turns off when the main base
unit is not the redundant main base unit
(Q38RB).
• When the multiple CPU system is
configured, the flags are stored only to the
CPU No.1.
S (Every
END
processing)
New
Qn(H)
*3
QnPH
*3
QnPRH
QnU
*4
SM1783
Momentary
power failure
detection flag for
power supply 2
*2