Mitsubishi Q01CPU User Manual page 203

6
BASE UNIT AND EXTENSION CABLE
Extension stage 1
Extension stage 1,
Extension stage 2
Extension stage 1 to 3 Extension stage 4
Extension stage 1 to 4 Extension stage 5
Extension stage 1 to 5 Extension stage 6
Extension stage 1 to 6 Extension stage 7
The voltage supplied to the "IN" connector of the Q5 B reaches 4.75 VDC or later on the
condition that the voltage drop (V) at the extension cable between the main base unit and
Q5 B is 0.15 VDC or lower.
(3) When the GOT is bus-connected
(a) Selection condition
(b) How to calculate voltage to "IN" connector
[When the Q5 B is connected to Extension stage 2.]
Main base unit
Power
supply
module
Extension base unit (Q6
R1
Power
supply
V
module
Extension base unit (Q5
R2
I1
GOT GOT
Im
Number of GOTs connected : Max. 5units
Diagram 6.11 System Configuration
Table6.22 List for Calculating Voltage Drops Occurring at Extension Cables
when connecting Q6
Position of extension base unit
Q6 B Q5 B
Extension stage 2
Extension stage 3
4.75VDC or later should be supplied to the "IN" connector of the Q5 B.
The 5VDC output voltage of the power supply module on the main base unit is set
to at least 4.90VDC.
Therefore, the Q5 B can be used if the voltage drop is 0.15VDC or lower
(4.9VDC -4.75VDC = 0.15VDC).
Table6.23 Extension Cable Conductor Resistance
B)
Extension
stage 1
B)
Extension
stage 2
Extension
stage 3
6.1.4 Guideline for Use of Extension Base Units
B between main base unit and Q5
Voltage drop caused by extension cable from the
main base unit to the Q5 B IN connector (V)
V=(R1+R2)I1
V=(R1+R2+R3)I2
V=(R1+R2+R3+R4)I3
V=(R1+R2+R3+R4+R5)I4
V=(R1+R2+R3+R4+R5+R6)I5
V=(R1+R2+R3+R4+R5+R6+R7)I6
Extension Cable Type
QC05B
QC06B
QC12B
QC30B
QC50B
QC100B
6.1 Base Unit
B
Extension Cable Conductor
Resistance
0.044
0.051
0.082
0.172
0.273
0.530
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