Precautions When Powering On The System - Mitsubishi Electric QA1S6ADP-S1-U-E User Manual

In the system above, the sum of the voltage drops will be as follows.
Extension level
1st level
2nd level
3rd level
Check that the condition (0.15>VnS) is satisfied.
To connect the QA1S6ADP-S1+A1S5B to the main base unit, it is recommended
to use the shortest extension cable possible so that the voltage drop is minimized.
6.3

Precautions When Powering on the System

Supply power to the system where the QA1S6ADP-S1 is used in either of the following way.
• Simultaneously turn on the power supply modules on the main base unit and extension base
unit.
• Turn on the power supply module on the main base unit first, and then turn on the power
supply module on the extension base unit.
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Voltage drops across the QA1S6ADP-S1 and extension cables
V1S=V1+RAIA=R1(I2+IA3)+RAIA
V2S=V1+V2+RA(I2+IA)=V1+R2(I2+IA2)+RA(I2+IA)
V3S=V1+V2+V3+RAIA=V1+V2+R3IA+RAIA