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5 POWER DISTRIBUTION MODULES
5 POWER DISTRIBUTION MODULES
5.1 Specifications
Specifications
Number of occupied slices
Number of occupied I/O points
Rated input voltage
Rated allowable voltage (24VDC)
Maximum rated input current
SYS.
(24VDC)
5VDC maximum rated output
current
Efficiency
Rated input voltage
Rated allowable voltage (24VDC)
AUX.
Maximum rated current (24VDC)
5
Dielectric withstand voltage
Operating status
For powering head module
Applicable
base
module
For adding bus refreshing module
Weight
External
SYS. power
supply
*4
*2
External
AUX. power
supply
*4
*1: Grounded to the DIN rail via the FG
contact of the base module.
*2: The shields of the slice modules are grounded together.
*3: Area where the shield is connected to each slice module.
*4: In order to ensure compliance with UL, make sure to use
the class2 external power supply.
5 - 1
(1) Bus refreshing module
Type
Supplying power to I/O modules
Supplying power to intelligent function modules
Spring clamp type
Screw clamp type
Spring clamp type
Screw clamp type
External Connections
Base module
ST1B-
4P2-
11 +24V(SYS.)
12 24G(SYS.)
13
Vacancy
14
Shield
Vacancy
21
22
24G(SYS.)
5V
23
Vacancy
24
Shield
SG
*1
31
Vacancy
+24V
32 24G(AUX.)
24G
33 +24V(AUX.)
34
Shield
Vacancy
41
42
24G(AUX.)
43
+24V(AUX.)
44
Shield
*1
Base module
ST1B-
4P0
*3
Bus refreshing module
ST1PSD
1
CC-Link: 0 point for each of input and output
PROFIBUS-DP: 2 points for each of input and output
24VDC
24VDC ( 20%, ripple ratio within 5%)
0.7A
2.0A
80% or more
24VDC
24VDC (+20/-15%, ripple ratio within 5%)
500VAC 1 min/600VAC 1s across SYS. inputs and AUX. inputs
LED indication (at 5VDC output: SYS. turns on,
at AUX. (24VDC) output: AUX. turns on)
(ST1B-S4P2-H+ST1B-S4P0) 2-wire type + shield
(ST1B-E4P2-H+ST1B-E4P0) 2-wire type + shield
(ST1B-S4P2-H+ST1B-S4P0) 2-wire type + shield
(ST1B-E4P2-H+ST1B-E4P0) 2-wire type + shield
0.06 kg
Terminal
Layout
Bus refreshing module
Internal
circuit
ST1B-
ST1B-
11 21 31 41
12 22 32 42
13 23 33 43
14 24 34 44
MELSEC-ST
8.0A
3.0A
ST1B-S4P2-H-SET
ST1B-S4P2-H-SET
ST1B-S4P2-H-SET
ST1B-S4P2-H-SET
Terminal
Signal Name
Block No.
ST1B- -4P2-
11
+24V(SYS.)
12
24G(SYS.)
13
Vacancy
14
Shield
21
Vacancy
4P2-
4P0
22
24G(SYS.)
23
Vacancy
24
Shield
ST1B- -4P0
31
Vacancy
32
+24G(AUX.)
33
24V(AUX.)
34
Shield
41
Vacancy
42
24G(AUX.)
43
+24G(AUX.)
44
Shield
5 - 1
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Troubleshooting
