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16-Channel, 24 VDC Discrete Output MTA
Marshalled Termination Assemblies for ET200M Remote I/O Modules
198
A5E00482820-12
15.3
Operation
Power is supplied via the removable power connector marked
L+A
,
MA
, and
L+B
,
MB
. Each has a LED to indicate the presence of voltage over 15 VDC. The LEDs
are marked
A POWER
and
B POWER
. There is also a connector for a Power
Monitor board used to indicate the presence of both A and B power. See Section
14 Power Monitor Board, (6ES7650-1BA02-0XX0).
Incoming power from
A
and
B
is diode OR’d to provide the MTA and the module
power from either power source. The output from the dual diode is sent to the I/O
modules via the module power fuses.
Field Terminals, C (
CHx+
), Channel – (
CHx-
), and Shield (
SHx
), connect
to the field devices.
CHx+
is connected through series diodes on the MTA to the
output signal of each DO module (Module 1 and Module 2).
CHx-
is the field
device return. The field termination connector is removable for ease of wiring
maintenance.
Redundant operation uses two I/O modules. Redundant operation is achieved by
connecting the channel outputs to the series diodes on the MTA. The MTA uses
the channel outputs without series diodes from the I/O module.
Connection from the MTA to the I/O Module is accomplished with a 40 pin Siemens
connector wired to a D25 male connector.
!
Caution
The heatsink can be over 100 °C. Avoid contact during servicing.
15.4
Installation Requirements
See Section 2,
, before performing any installation and observe all
warnings
A common interconnecting cable (6ES7922-3BD00-0AT0 or 6ES7922-3BJ00-
0AT0), supporting 16-Channel Discrete outputs, interconnects the discrete output
termination assembly to the 16-channel, 24 VDC discrete output module (6ES7
322-8BH01-0AB0, E-Stand 1 or higher).
Note
To disconnect the interconnecting cable shield from ground at the MTA only, cut
and remove the shield disconnect jumper for the associated cable. See Figure
15.5
Содержание ET 200M
Страница 8: ...Preface Marshalled Termination Assemblies for ET200M Remote I O Modules 8 A5E00482820 12 ...
Страница 16: ...Contents Marshalled Termination Assemblies for ET200M Remote I O Modules 16 A5E00482820 12 ...
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Страница 78: ...8 Channel RTD Input MTA Marshalled Termination Assemblies for ET200M Remote I O Modules 78 A5E00482820 12 ...
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Страница 154: ...6 Channel F Analog Input HART MTA Marshalled Termination Assemblies for ET200M Remote I O Modules 154 A5E00482820 12 ...
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Страница 270: ...8 Channel HART Analog Output MTA Marshalled Termination Assemblies for ET200M Remote I O Modules 270 A5E00482820 12 ...
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Страница 284: ...Safety Information for US Customers Marshalled Termination Assemblies for ET200M Remote I O Modules 284 A5E00482820 12 ...