Mitsubishi A1SJH(S8) User Manual page 91

6. BASE UNIT AND EXTENSION CABLE
(3)
CPU module
V V
CPU
I I
CPU
Receiving voltage calculation method
0 1 2 3 4
V V V V
0 1 2 3 4
I I I I
0 1 2 3 4
V , V to V :Voltage drop at each slot of the main base unit
CPU 0 7
I , I to I :Current consumption at each slot of the main base unit
CPU 0 7
V to V :Voltage drop at each slot of the extension base unit
8 15
I to I :Current consumption at each slot of the extension base unit
8 15
(a) Calculation of voltage drops with the main base unit (A1S32B, A1S33B,
A1S35B, A1S38B) Resistive value with the main base unit is 0.007
slot.Sum up the voltage drops of each slot.
Current consumption of the CPU module
A1SJHCPU(S8), A1SHCPU
A2SHCPU(S1)
1) Voltage drop at the CPU module: V
V = 0.007 (I
CPU
+ I
10
2) Voltage drop at slot 0: V
V = 0.007 (I
0
+ I + I
11
3) Voltage drop at slot 1: V
V = 0.007 (I
1
+ I + I
12
4) Voltage drop at slot 2: V
V = 0.007 (I
2
+ I + I
13
5) Voltage drop at slot 3: V
V = 0.007 (I
3
+ I + I
14
6) Voltage drop at slot 4: V
V = 0.007 (I
4
+ I + I
14
7) Voltage drop at slot 5: V
V = 0.007 (I
5
+ I )
15
8) Voltage drop at slot 6: V
V = 0.007 (I
6
9) Voltage drop at slot 7: V
V = 0.007 (I
7
10) Total voltage drop at the main base unit: V
V = V + V
K CPU
5 6 7
V V V V
5 6 7
I I I
I
5 6 7
:0.3(A)
:0.4(A)
CPU
+ I + I + I + I
CPU 0 1 2 3
+ I + I + I + I + I
11 12 13 14 15
0
+ I + I + I + I + I
0 1 2 3 4 5
+ I + I + I )
12 13 14 15
1
+ I + I + I + I + I
1 2 3 4 5 6
+ I + I )
13 14 15
2
+ I + I + I + I + I
2 3 4 5 6 7
+ I
14 15
3
+ I + I + I + I + I
3 4 5 6 7 8
)
15
4
+ I + I + I + I + I
4 5 6 7 8 9
)
15
5
+ I + I + I + I + I
5 6 7 8 9 10
6
+ I + I + I + I + I
6 7 8 9 10 11
7
+ I + I + I + I + I
7 8 9 10 11
+ V + V + V + V
0 1 2 3 4
6 - 4
8 9 10 11 12
V V V V
8 9 10 11 12
I I I I
8 9 10 11 12
+ I + I + I + I + I + I
4 5 6 7 8
)
+ I + I + I + I + I
6 7 8 9 10
+ I + I + I + I + I
7 8 9 10 11
+ I + I + I + I + I
8 9 10 11 12
+ I + I + I + I + I
9 10 11 12 13
+ I + I + I + I
10 11 12 13
+ I + I + I + I
11 12 13 14
+ I + I + I + I )
12 13 14 15
+ I + I + I )
12 13 14 15
K
+ V + V + V
5 6 7
13 14 15
V V V
13 14 15
I
I I
13 14 15
per
9