Mitsubishi Q01CPU User Manual page 287

10
LOADING AND INSTALLATION
(2) Redundant power supply system
System A System B
100V/200VAC
AC
100V/200VAC
AC
Extension cable
Ground wire
Grounding
100V/200VAC
AC
100V/200VAC
AC
* 2: The operation of the ERR terminal is as fllows.
<When the redundant power supply module is mounted on the redundant power main base unit>
The terminal turns OFF (opens) when the AC power is not input, a CPU module stop error
(including a reset) occurs, the redundant power supply module fails, or the fuse of the redundant
power supply module is blown.
<When the redundant power supply module is mounted on the redundant power extension base
unit>
The terminal turns OFF (opens) when the redundant power supply module fails.
* 3 When input power is supplied to the redundant power supply module mounted on the redundant
power main base unit and the redundant power supply module mounted on the redundant power
extension base unit simultaneously, the ON (short) timing of the ERR terminal on the redundant
power main base unit is later than that of the ERR terminal on the redundant power extension
base unit by the initial processing time of the CPU module.
Diagram 10.43 Redundant power supply system wiring example
10.6.2 Connecting to the power supply module
Redundant power main base unit
(Q38RB)
Q64RP Q64RP
2, 3
ERR
FG
LG
INPUT
100/
200VAC
Redundant power extension base unit
(Q68RB)
Q64RP Q64RP
ERR
FG
LG
INPUT
100/
200VAC
CPU module
2, 3
ERR
FG
LG
INPUT
100/
200VAC
I/O module
2, 3 2, 3
ERR
FG
LG
INPUT
100/
200VAC
10
10.6 Wiring
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