Mitsubishi Electric MELSEC iQ-R Series Configuration Manual page 89

Selecting the power supply module
The power supply module should be selected in accordance with the total current consumption of the power supply target
base unit and each module.
Select the power supply module so that the current consumption of the base unit does not exceed the rated output current of
the power supply module mounted on the base unit.
For the internal current consumption (5VDC) of the base unit and CPU module, refer to the following.
• Base unit ( Page 88 Performance Specifications of Base Unit)
• CPU module ( MELSEC iQ-R CPU Module User's Manual (Startup))
For the internal current consumption (5VDC) of each module, refer to the manual for the module used.
For devices obtained by a user, such as an external power supply (24VDC) and breaker, refer to the manual for the device
used.
■ When a redundant power supply system is configured
If one redundant power supply module failed, only the other redundant power supply module continues the operation.
Therefore, keep the current consumption of the redundant power supply base unit within the rated output current for one
redundant power supply module.
When the R64RP and the R63RP are used in a redundant power supply system, adapt the smaller rated output current value
in the system. While the rated output current of the R64RP is 9.0A, the rated output current of the R63RP is 6.5A. Therefore,
keep the current consumption less than 6.5A.
■ When MELSEC-Q series modules are connected
Select the power supply module so that the current consumption of each extension base unit does not exceed the rated
output current of the power supply module mounted on each extension base unit.
When the extension base unit (type requiring no power supply module) (Q5B) is used, power is supplied from the power
supply module mounted on the RQ extension base unit. Select the power supply module so that the total current consumption
of the modules on the RQ extension base unit and the Q5B does not exceed the rated output current of the power supply
module mounted on the RQ extension base unit. ( Page 57 Consideration for internal current consumption)
The current consumption can be checked in "Power Supply Capacity and I/O Points" of the engineering tool.
4.2 Performance Specifications of Power Supply Module
4 SPECIFICATIONS
87
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