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MELSEC-Q
5 POWER SUPPLY MODULE
(b) Ideas for reducing voltage drops
The following methods are effective to reduce voltage drops at the extension
cables.
1) Changing the module loading positions
Load large current consumption modules on the main base unit.
Load small current consumption modules on the extension base unit.
2) Using short extension cables
The shorter the extension cable is, the smaller the resistance and voltage
drops are.
Use the shortest possible extension cables.
(2) When the base unit is of Q3
SB:
Slim type main base unit
Q32SB, Q33SB, Q35SB
CPU module
Q02(H)CPU, Q06HCPU, etc.
I/O module
QX10, QY10, etc.
Intelligent function module
Q64AD, QJ71LP21-25, etc.
1
Slim type power
supply module
Q61SP
Peripheral devices, converter,
cables, etc. (for connection
between CPU module and PC)
1: The CPU module is loaded on the Q3
S
B slim type
main base unit.
(a) To use the slim type main base unit and slim type power supply module, pay
attention to the capacity of the 5VDC power supply.
1) The capacity of the 5VDC power supply of the power supply module
(Q61SP) installed to the slim type main base unit is 2A. Choose modules
with total capacity of 2A or less.
5VDC Rated output current Type
2.0A Q61SP