Components Of The Melsec St Series; Notes On System Setup - Mitsubishi Electric MELSEC ST Series Installation Manual

1.3.2

Components of the MELSEC ST Series

NOTE A base module is required for mounting each ST series electronics module, except for the
head station.
Product
Head station
Bus refreshing module
Power
distribution
modules
Power feeding module
Input modules
(Negative common type)
Digital
I/O modules
Output modules
Analog input modules
Intelligent func-
tion modules
Analog output modules
* Base modules with screw clamp terminals and base modules with spring clamp terminals
cannot be used together in one system. Use either one of them.
1.3.3

Notes on System Setup

Operation of the ST1PSD power distribution module is possible in two different modes: In "H"
mode, 24 V DC is made available to supply the head station and the I/O modules, as well as 5 V
DC for the backplane bus. In "R" mode only the internal backplane bus is supplied with 5 V DC.
The mode (H or R) is selected by using different base modules that are identified by the letters
"H" or "R" in the type designation.
At least one ST1PSD is required in "H" mode in order to operate an ST series station. This is
installed on the right side of the head station. Additional power supplies ( with the "R" base mod-
ule) are only required if power consumption of the installed ST modules exceeds the capacity a
single power distribution module.
MELSEC ST Series
Elektronic
Description
module
For connection to the
ST1H-PB
PROFIBUS
For powering the head
station
(Supply of 5 V DC and
ST1PSD
distribution of 24 V DC)
For increasing the capac-
ity of the 5 V DC supply
Distribution of 24 V DC to
ST1PDD
the I/O modules
ST1X2-DE1 2 inputs, 24 V DC
ST1X4-DE1 4 inputs, 24 V DC
ST1X16-DE1 16 inputs, 24 V DC
2 transistor outputs, 24 V
ST1Y2-TE2
DC, 0,5 A, source type
16 transistor outputs,
ST1Y16-TE2 24 V DC, 0,5 A, source
type
2 transistor outputs,
24 V DC, 1 A, source
ST1Y2-TPE3
type, short circuit
protected
16 transistor outputs,
24 V DC, 1 A, source
ST1Y16-TPE3
type, short circuit pro-
tected
2 contact outputs
ST1Y2-R2
240 V AC / 24 V DC, 2 A
ST1AD2-V 2 voltage inputs
ST1AD2-I 2 current inputs
ST1DA2-V 2 voltage outputs
ST1DA1-I 1 current output
Applicable base modules*
Spring clamp Screw clamp
terminals terminals
Not necessary Not necessary
ST1B-S4P2-H-SET ST1B-E4P2-H-SET
ST1B-S4P2-R-SET ST1B-E4P2-R-SET
ST1B-S4P2-D ST1B-E4P2-D
ST1B-S4X2 ST1B-E4X2
ST1B-S6X4 ST1B-E6X4
ST1B-S4X16 ST1B-E4X16
ST1B-S3Y2 ST1B-E3Y2
ST1B-S3Y16 ST1B-E3Y16
ST1B-S3Y2 ST1B-E3Y2
ST1B-S3Y16 ST1B-E3Y16
ST1B-S4IR2 ST1B-E4IR2
ST1B-S4IR2 ST1B-E4IR2
Introduction
9