Siemens CS 275 manual Remote bus connection subrack S5

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Remote bus connection subrack S5

Description and ordering data

1Mains terminals AC 230 V

2 Power supply modules

3 Bus converters UI 6DS4 400-8AB

Fig. 4/16 Remote bus connection subrack S5 6DS4 426-8CA

Application

The remote bus connection subrack S5 connects rack-mounted systems, especially SIMATIC S5-155U programmable control- lers, to a redundant or non--redundant remote bus. Electrical isolation between the local and remote buses is achieved at the same time.

Non--redundant or redundant DC 24 V or AC 230 V power sup- ply is possible.

Note: The remote bus connection subrack is not used in the basic cabinets of the AS 235 and AS 235 H automation systems and in the OS 265-3 operation and monitoring system (rack ver- sion) for DC 24 V.

Design

Single-tier 19-inch subrack with 2 slots for bus converter units UI, optionally with power supply module(s).

The power supply in the case of DV 24 V is from the cabinet supply of the programmable controller, in the case of AC 230 V via the power supply module C79451-A3276-A1 (redundant as option).

Technical data

Power supply	DC 24 V (20 to 33 V)
- 6DS4 426-8AA
- 6DS4 426-8BA and	permissible ripple 15 %
- 6DS4 426-8CA	AC 50 Hz/60 Hz 230 V + 6 %/ -10 %
Power consumption	Approx. 20 VA
	with 2 bus converter units
Permissible ambient
temperature	0 to + 40 qC
- Operation
- Transport and storage	- 40 to + 70 qC
Degree of protection	IP 00
to DIN 40 050
Protection class	I
(6DS4 426-8BA and
6DS4 426-8CA)
Dimensions (h x w x d)	134 mm x 485 mm x 260 mm
Weight	Approx. 4.5 kg
- Subrack (empty)
- Power supply module	Approx. 1.5 kg
- Bus converter unit	Approx. 1.2 kg

E. g. SIMATIC

S5-155U

Remote bus connection subrack S5

	Remote bus A
	Remote bus B
AF	Connector board ”Remote bus” for converting the cable cross-section
FS	Front plug for 20-m local bus
SV	Power supply unit of bus converter
UI	Bus interface and inductive coupler of bus converter

Fig. 4/17 Remote bus connection subrack S5 6DS4 426-8CA, function diagram

Ordering data

	Order No.
Remote bus connection subrack S5
with slots for 2 bus converters UI
¯ For connection to DC 24 V,	6DS4 426-8AA
non-redundant or redundant
¯ With 1 power supply module	6DS4 426-8BA
for AC 230 V for non-redundant supply
to 1 or 2 bus converters UI
¯ With 2 power supply modules	6DS4 426-8CA
for AC 230 V for redundant supply
to 2 bus converters UI
The following are required in addition for a
remote bus connection:
Bus converter UI	6DS4 400-8AB
Connector board AF ”Remote bus”	6DS9 203-8DA
with mounting plate
Overvoltage fine protection, can be retrofitted	6DS9 210-8AA
Instructions
Remote bus connection subrack S5	Order No.
German	C79000-B8000-C251
English	C79000-B8076-C251
French	C79000-B8077-C251
Spanish	C79000-B8078-C251
Bus converter, inductive
German	C79000-B8000-C4
English	C79000-B8076-C4
French	C79000-B8077-C4
Spanish	C79000-B8078-C4

4/12 Siemens PLT 130 . 1994