Mitsubishi A1SJH User Manual page 70

6. BASE UNIT AND EXTENSION CABLE
A1S52B(S1), A1S55B(S1), or
A1S58B(S1) extension base
unit is used
A52B, A55B or A58B
extension base unit is used
(2) Factors of voltage drop
Voltage drop may involve the following factors (a), (b), and (c) depending on
the connecting method and type of extension base units.
(a) Voltage drop of a main base unit
(b) Voltage drop of an extension base unit
(c) Voltage drop in an extension cable
Extension cable connected to the left side
of main base unit (serial)
A1S3[ ]B
(c)
A1S5[ ]B(S1)
(b)
Voltage drop of the main base unit can be
ignored.
A1S3[ ]B
(c)
A5[ ]B
Voltage drop of the main and extension
base units can be ignored.
Extension cable connected to the right side of main base
unit (parallel)
A1S3[ ]B
(a)
A1S3[ ]B
(a)
Voltage drop of the extension base units can be ignored.
6 - 3
MELSEC-A
A1S5[ ]B(S1)
(b)
(c)
A5[ ]B
(c)