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6.
BASE UNIT AND EXTENSION CABLE
(b) Voltage drop calculation on the extension base unit (A1S52B(S1), A1S55B(S1),
A1S58B(S1))
The resistive value on the extension base unit is 0.006
Calculate the voltage drop of each slot and obtain the total voltage drop.
1) Voltage drop at slot 8: V
V
=0.006 (I
+ I
8
8
2) Voltage drop at slot 9: V
V
=0.006 (I
+ I
9
9
3) Voltage drop at slot 10: V
V
=0.006 (I
10
10
4) Voltage drop at slot 11: V
V
=0.006 (I
11
11
5) Voltage drop at slot 12: V
V
=0.006 (I
12
12
6) Voltage drop at slot 13: V
V
=0.006 (I
13
13
7) Voltage drop at slot 14: V
V
=0.006 (I
14
14
8) Voltage drop at slot 15: V
V
=0.006 I
15
15
9) Total voltage drop at the extension base unit: V
V
=V
+ V
+ V
Z
8
9
(c) Calculation of voltage drop through the extension cable
[1] Total current consumption of the extension base unit: I
I
= I
+ I
+ I
+ I
Z
8
9
10
[2] Voltage drop of the extension cable: V
V
=(Resistive value of the extension cable)
c
Resistive value of extension cable
A1SC01B......0.02
A1SC03B......0.021
A1SC07B......0.036
A1SC12B......0.055
A1SC30B......0.121
(d) Verification of the receiving port voltage
(5.1(V)-V
-V
-V
)
K
Z
C
8
+ I
+ I
+ I
+ I
+ I
9
10
11
12
13
9
+ I
+ I
+ I
+ I
10
11
12
13
14
10
+ I
+ I
+ I
+ I
+ I
11
12
13
14
15
11
+ I
+ I
+ I
+ I
)
12
13
14
15
12
+ I
+ I
+ I
)
13
14
15
13
+ I
+ I
)
14
15
14
+ I
)
15
15
+ V
+ V
+ V
+ V
10
11
12
13
+ I
+ I
+ I
+ I
11
12
13
14
15
c
A1SC60B ......0.182
A1SC05NB ......0.037
A1SC07NB ......0.045
A1SC30NB ......0.12
A1SC50NB ......0.18
4.75(V)
6 - 5
per slot.
+ I
)
14
15
+ I
)
15
)
Z
+ V
14
15
z
I
z
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