What is the ALSTOM LD106?

The ALSTOM P320 system manual identifies it as a CE2000 16-point, 48 VDC, static-switching logic-output module with a powered negative output.

Is LD106 an input or output module?

The dedicated ALSTOM hardware table says output. GE's later retrofit release note says input, creating an official-source conflict. Use the site technical data sheet and wiring drawing as the final authority.

How many channels does LD106 have?

The ALSTOM P320 manual lists 16 logic-output points.

What voltage does LD106 switch?

The OEM system table specifies 48 VDC. Exact voltage tolerance and load current were not verified.

Does LD106 use relay contacts?

The ALSTOM table calls it static switching, not a relay/contact output. LC105 and LC106 are separate logic-output families and must not be confused with it.

What does powered negative output mean?

That is the exact OEM system-manual wording. Do not infer terminal polarity or publish a sourcing/sinking label until the LD106 technical data sheet and plant wiring are reviewed.

Where is LD106 installed?

It is an I/O module in an ALSPA CE2000 controller within the P320 automation architecture.

Can LD106 be used with GE PCEG?

GEI-100746 says PCEG V05.16.00C added LD106 support for the ALSPA DCS Retrofit. Hardware, firmware, mapping and project approval still require verification.

What is the PCEG hardware reference?

GE's declaration of conformity identifies the PCEG CE3000-I Gateway object as IS420PCEGH1A.

Can a modern output card replace LD106 directly?

No direct replacement is established. The channel mapping, polarity, load rating, process supply, rack interface, control database and safe state all need project engineering.

LD106

Name: LD106
Brand: Alstom
SKU: LD106

ALSTOM Power ALSPA LD106 16-Point 48 VDC Static Logic Output Module

Product image is representative; revision or series may vary. Contact us to request a specific version.

Product Describe：

Alstom LD106 is an industrial static logic-output module.

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Technical specifications for LD106

Manufacturer:

Alstom
Product Category:

DCS Systems
Spare Part Number:

LD106
Estimated shipping dimensions:

2.5x25x26.1cm
Weight:

0.4 kg
Tariff Code:

8537101190
Counliy of origin:

France
Official module reference:

LD106
Module type:

Logic output
Number of points:

16
Signal level:

48 VDC
Output method:

Static switching, powered negative output
Installation context:

CE2000 I/O controller in the ALSPA P320 system
CE2000 module electronics supply:

Taken from the CE2000 backplane bus
CE2000 process supply arrangement:

Process supply for sensors/actuators can be distributed by the CE2000 backplane bus, up to 10 A per controller, or connected directly to the I/O module; the listed exceptions do not include LD106.
Retrofit gateway support:

PCEG V05.16.00C added LD106 support for the ALSPA DCS Retrofit in ControlST V07.07.00C SP11 (March 2021)
PCEG hardware object:

IS420PCEGH1A

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Information

Overview Manuals Common Applications Product Precautions

Transfers controller logic commands from a CE2000 rack to field devices through static powered-negative output circuits.

Signal or energy path: Backplane logic selects the output state, and the module switches the external process supply to the assigned actuator or interposing circuit without mechanical output contacts.
Companion components: Use the approved CE2000 controller rack, process-supply distribution, terminal wiring and field interface devices for the installed ALSPA system.
Engineering check: Verify output mapping, supply return, load compatibility, channel isolation and fail-state behavior against the project drawings.
System boundary: Output behavior depends on the CE2000 channel mapping, external process supply and documented field-load interface.

Industrial application: Legacy ALSPA power-plant and industrial process-control installations.

Important Notice: Verify the complete LD106 nameplate, installed-system documentation, companion hardware and current Alstom instructions before installation or replacement.

Apter Power LD106 Manuals and Guides

Important Notice: The first link is the product-parameters PDF prepared only from the cited manufacturer information; the second link is the Apter Power product manual. Confirm the physical nameplate, current manufacturer documents, and host-system requirements before installation or replacement.

Existing ALSPA P320 discrete output maintenance

Restores or maintains a site-matched bank of 16 static 48 VDC logic outputs in a CE2000 controller.

Power-plant actuator command circuits

Switches engineered on/off commands to compatible 48 VDC actuator interface circuits in thermal, combined-cycle or hydro plant automation.

Industrial and substation P320 control cells

Provides site-specific discrete outputs in ALSPA P320 automation cells used for substations or high-availability industrial processes described by the OEM system manual.

ALSPA-to-Mark VIe smart retrofit

Retains compatible LD106 I/O and process wiring while the control layer migrates through a project-engineered PCEG/Mark VIe solution.

Read and follow the current Alstom documentation and host-equipment instructions before work. Verify the complete physical nameplate and system configuration.

Require an ALSTOM/ALSPA nameplate and CE2000 slot/wiring context; the bare code LD106 is not unique enough for identification.

Resolve the official-document conflict before energization: the ALSTOM hardware table says 16 logic outputs, while GEI-100746 says 16 static digital inputs.

Verify the exact 48 VDC powered negative-output wiring and load polarity from the unit drawing; do not translate 'negative output' into a sourcing/sinking claim without the technical data sheet.

Do not assume per-channel current, total load, fuse/protection, isolation, leakage, response time or safe-state values; none were verified in the reviewed official exact-module sources.

Do not substitute LC105, LC106 or LE-series modules by point count alone; their signal direction, switching method, voltage and isolation differ.

Alternative Names

Alstom LD106 ALSTOM LD106 LD106

FAQ View All FAQ

What is the ALSTOM LD106?

The ALSTOM P320 system manual identifies it as a CE2000 16-point, 48 VDC, static-switching logic-output module with a powered negative output.
Is LD106 an input or output module?

The dedicated ALSTOM hardware table says output. GE's later retrofit release note says input, creating an official-source conflict. Use the site technical data sheet and wiring drawing as the final authority.
How many channels does LD106 have?

The ALSTOM P320 manual lists 16 logic-output points.
What voltage does LD106 switch?

The OEM system table specifies 48 VDC. Exact voltage tolerance and load current were not verified.
Does LD106 use relay contacts?

The ALSTOM table calls it static switching, not a relay/contact output. LC105 and LC106 are separate logic-output families and must not be confused with it.

What does powered negative output mean?

That is the exact OEM system-manual wording. Do not infer terminal polarity or publish a sourcing/sinking label until the LD106 technical data sheet and plant wiring are reviewed.
Where is LD106 installed?

It is an I/O module in an ALSPA CE2000 controller within the P320 automation architecture.
Can LD106 be used with GE PCEG?

GEI-100746 says PCEG V05.16.00C added LD106 support for the ALSPA DCS Retrofit. Hardware, firmware, mapping and project approval still require verification.
What is the PCEG hardware reference?

GE's declaration of conformity identifies the PCEG CE3000-I Gateway object as IS420PCEGH1A.
Can a modern output card replace LD106 directly?

No direct replacement is established. The channel mapping, polarity, load rating, process supply, rack interface, control database and safe state all need project engineering.

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