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MELSEC-Q
5 POWER SUPPLY MODULE
5.1.2 Selecting the power supply module
The power supply module is selected according to the total of current consumption
of the base units, I/O modules, intelligent function module, special
function module, and peripheral devices supplied by its power supply module.
For the internal current consumption of 5 VDC of the base unit, refer to Chapter 6.
For the internal current consumption of 5 VDC of the I/O modules,
intelligent function module, special function module, and peripheral
devices, refer to the Manuals of their respective modules.
For the devices obtained by a user, see the manual for the respective device.
(1) When the base unit is of Q3
B or Q6
B:
Base unit
Q35B, Q65B, etc.
CPU module
Q02CPU, Q06HCPU, etc.
I/O module
QX10, QY10, etc.
Intelligent function module
Q64AD, QJ71LP21-25, etc.
1
Power supply module
Q61P-A1, Q61P-A2,
etc.
Peripheral devices, converter,
cables, etc. (for connection
between CPU module and PC)
1: The CPU module is loaded on the Q3 B main base
unit.
(a) Selection of power supply module for use of Q52B or Q55B extension base
unit
Using the Q52B or Q55B supplies 5VDC power from the power supply
module of the main base unit through the extension cable.
Therefore, note the following when using the Q52B or Q55B.
1) The power supply module to be loaded on the main base unit should be
selected to cover also the 5VDC used on the Q52B or Q55B.
For example, either of the following power supply modules must be
mounted on the main base unit, when the current consumption on the
main base unit is 3A and that on the Q52B or Q55B is 1A.
5VDC Rated output current Type
6A Q61P-A1, Q61P-A2, Q63P
8.5A Q64P
2) Since 5VDC is supplied to the Q52B or Q55B through the extension
cable, a voltage drop occurs at the extension cable.
You must select the power supply module and extension cable length to
ensure that the "IN" connector voltage of the Q52B or Q55B is 4.75VDC
or more.
For details of a voltage drop, refer to Section 6.6.