Mitsubishi Electronics QCPU Welding System User Manual


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Appendix 4 SPECIAL REGISTER LIST
(18) Redundant power supply module information
SD1780 to SD1789 are valid only for a redundant power supply system.
The bits are all 0 for a singular power supply system.
*1: The "power supply 1" in dicates the redundant power supply module mounted on the POWER 1 slot of the redundant base unit (Q38RB/68RB/Q65WRB).
The "power supply 2" indicates the redundant power supply module mounted on the POWER 2 slot of the redundant base unit (Q38RB/68RB/Q65WRB).
*2: The module whose first 5 digits of serial No. is "07032" or later.
However, for the multiple CPU system configuration, this applies to all CPU modules whose first 5 digits of serial No. are "07032" or later.
*3: The module whose first 5 digits of serial No. is "10042" or later.
TableApp.4.22 Special register
Number Name Meaning Explanation
Set by
(When Set)
Corres-
ponding
ACPU
D9
Corresponding
CPU
SD1780
Power supply
off detection
status
Power supply off
detection status
• Stores the status of the redundant power supply module with input
power OFF in the following bit pattern.
Stores 0 when the main base unit is not the redundant power main base
unit (Q38RB).
When configuring multiple CPU, the status is stored to 1st CPU module.
S(Every END) New
Qn(H)
*2
QnPH
*2
QnPRH
QnU
*3
SD1781
Power supply
failure detection
status
Power supply
failure detection
status
• Stores the failure detection status of the redundant power supply module
in the following bit pattern. (The corresponding bit is cleared to 0 when
the input power to the faulty redundant power supply module is switched
OFF after detection of the redundant power supply module failure.)
Stores 0 when the main base unit is not the redundant power main base
unit (Q38RB).
When configuring multiple CPU, the status is stored to 1st CPU module.
S(Every END) New
SD1782
Momentary
power failure
detection
counter for
power supply
1
*1
Momentary power
failure detection
count for power
supply 1
• Counts the number of times of momentary power failure of the power
supply 1/2.
Monitors the status of the power supply 1/ 2 mounted on the redundant
power main base unit (Q38RB) and counts the number of times of
momentary power failure.
Status of power supply 1/power supply 2 mounted on the redundant
extension base unit is not monitored.
When the CPU module starts, the counter of the power supply 1/ 2 is
cleared to 0.
• If the input power to one of the redundant power supply modules is
turned OFF, the corresponding counter is cleared to 0.
The counter is incremented by 1 every time the momentary power failure of
the power supply 1/ 2 is detected.(The counter repeats increment and
decrement of the value; 0 32767 – 32768 0 (The system monitor
of GX Developer shows the counter within the range between 0 and 65535.
• Stores 0 when the main base unit is not the redundant power main base
unit (Q38RB).
When configuring multiple CPU, the status is stored to 1st CPU module.
• The counter repeats increment and decrement of the value, 0 32767
– 32768 0
(The system monitor of GX Developer shows the counter within the
range between 0 and 65535.
S(Every END) New
SD1783
Momentary
power failure
detection
counter for
power supply
2
*1
Momentary power
failure detection
count for power
supply 2
S(Every END) New
b0b7b8b15
toto
toto
Input power OFF
detection status of
power supply 2
Each bit
0:Input power ON status/ No
redundant power supply
module
1:Input power OFF status
SD1780
Input power OFF
detection status of
power supply 1
1
1
b9 b1
Main base unit
Extension base unit 1st stage
Extension base unit 7th stage
Main base unit
Extension base unit 1st stage
Extension base unit 7th stage
:
:
F
ailure detection
status of power
supply 1
b0b7b8b15
toto
toto
Failure detection
status of power
supply 2
Each bit
0: Redundant power supply
module failure not
detected/No redundant power
supply module
1: Redundant power supply
module failure detected
(Detectable for
redundant
power supply module only)
SD1781
1
1
Main base unit
Extension base unit 1st stage
Extension base unit 7th stage
Main base unit
Extension base unit 1st stage
Extension base unit 7th stage
:
:
b9
b1