HYOMYUNG HM10P-GA Group Annunciator
HYOMYUNG ENGINEERING
New product
The HYOMYUNG HM10P-GA Group Annunciator is a multi-channel alarm indication unit designed for shipboard and industrial control-panel applications.
The actual SM MARINE SERVICE™ stock unit is clearly marked:
Manufacturer: HYOMYUNG ENGINEERING
Product: GROUP ANNUNCIATOR
Model: HM10P-GA
Alarm Channels: 10
Front Indications: Alarm Source / Flicking / Common
Timer Function: Delay Timer
Individual Channels: Alarm 1 to Alarm 10
Application Category: Marine alarm monitoring / control-panel indication
Current market listings independently identify the exact HM10P-GA as a Group Annunciator.
A Group Annunciator receives discrete alarm signals from machinery, electrical equipment or a control system and gives the operator a clear visual indication of which alarm channel has become active.
Instead of an engineer checking multiple separate relays or sensors, the annunciator groups alarms into one front-panel display.
The HM10P-GA provides:
10 independent alarm positions
together with:
Common alarm indication
and front-panel status functions related to alarm source, flashing/flicking indication and timer operation.
This type of unit is particularly useful in marine switchboards and machinery-control panels where multiple equipment faults must be visible quickly.
Hyomyung Engineering is a Korean manufacturer of marine electrical, automation and control equipment.
Its current company brochure identifies a history of manufacturing:
Annunciators
Group Annunciators
Light Signal Columns
Converters
Battery Charger Control Units
Marine control equipment
and records certifications for annunciator products from organizations including ABS, KR, BV and CE certification bodies.
This makes HM10P-GA part of an established marine alarm and indication product family rather than a generic industrial indicator.
The front panel provides ten dedicated alarm positions:
ALARM 1
ALARM 2
ALARM 3
ALARM 4
ALARM 5
ALARM 6
ALARM 7
ALARM 8
ALARM 9
ALARM 10
Each blank label field can be assigned to a vessel-specific alarm description.
For example, depending on the installation, channels could be used for machinery, electrical or auxiliary equipment alarms.
The exact alarm naming is determined by the ship's wiring and control-panel design—not by the HM10P-GA itself.
The upper section is marked:
This provides an indication associated with the incoming alarm-source condition.
In an alarm-annunciator system, this helps distinguish the presence of an active alarm signal from the wider common-alarm output/state.
The front panel is marked:
This appears to refer to the annunciator's flashing/flickering alarm indication behavior.
In a typical annunciator sequence, a newly received alarm may flash until acknowledgement or until the configured alarm sequence progresses.
Because exact timing and sequence logic depend on the HM10P-GA circuit/version, replacement units should be matched to the same model rather than assuming all alarm annunciators use identical sequences.
The front panel also includes:
A delay timer can be useful where a signal should remain active for a defined interval before producing a full alarm response, helping prevent unwanted alarms from very brief transient signals.
The exact delay range is not visible on the front of the photographed unit, so this blog does not invent an unsupported timer value.
At the top-right of the panel is:
A common-alarm output or common alarm indication is useful because several individual alarms can be combined into one summary signal.
This common output can then be connected to:
Central alarm system
Bridge alarm indication
Engine-control-room alarm
Remote buzzer or lamp
Alarm-monitoring system input
depending on the vessel's design.
The HM10P-GA front panel shows paired colored indicators adjacent to the alarm channels.
These give the operator a quick visual state indication for each monitored alarm group/channel.
The exact meaning of each color and sequence should be confirmed from the HM10P-GA wiring/manual or vessel drawings rather than assumed solely from appearance.
The HYOMYUNG HM10P-GA can be relevant to many shipboard alarm and control-panel applications, including:
Main Switchboards
Emergency Switchboards
Generator Control Panels
Engine Room Control Panels
Machinery Alarm Panels
Pump Control Panels
Auxiliary Machinery Panels
Bridge Alarm Panels
Battery Charger Panels
Marine Automation Cabinets
Exact use depends on how the panel builder or vessel system assigns the ten inputs.
For replacement and worldwide sourcing of Hyomyung HM10P-GA and related marine alarm equipment, SM MARINE SERVICE™ can be found at www.smmarineservice.com.
Hyomyung's broader product family includes other group-annunciator models.
Current marine supplier references list examples such as:
HM4P-GA
HM6P-GA
HM15P-GA
alongside the wider Hyomyung HM group-annunciator family.
This creates useful related SEO searches:
Hyomyung HM4P-GA
Hyomyung HM6P-GA
Hyomyung HM10P-GA
Hyomyung HM15P-GA
However, the different channel-count models should not automatically be treated as interchangeable.
A replacement annunciator must match the control system's required number of alarms.
The photographed unit has:
Replacing it with a 4-channel, 6-channel or 15-channel unit may require different wiring, dimensions or circuit configuration.
For this reason, always verify:
Model
Number of Channels
Supply Voltage
Terminal Arrangement
Alarm Sequence
Common Alarm Logic
Physical Dimensions
before replacement.
A typical alarm sequence works approximately as follows:
A field device or control relay changes state.
The HM10P-GA receives the alarm input.
The corresponding alarm channel indicates the condition.
The annunciator may provide flashing/flicking indication according to its internal logic.
A common alarm signal can be activated.
Once the fault is acknowledged or cleared, the annunciator returns according to the configured alarm sequence.
The exact HM10P-GA logic should always be confirmed from the original system documentation.
Check:
Field alarm signal
Terminal wiring
Input voltage/state
Connector/terminal screw
Individual LED/indicator circuit
Internal annunciator electronics
Do not assume the HM10P-GA is defective until the incoming field signal has been verified.
Inspect:
Control supply
Power terminals
External fuse
Common return
Internal power section
A complete loss of all alarm indications often points first toward supply or common wiring rather than ten simultaneous channel failures.
Confirm whether the fault is still physically present.
Also check the alarm acknowledgement/reset logic used by the vessel.
Check:
Individual alarm channel state
Common alarm output wiring
External relay/input
Annunciator common circuit
Confirm the installed timer configuration before attempting adjustment.
A replacement unit may require the same delay behavior as the original vessel circuit.
The alarm input may still be operating even if the front visual indicator has failed.
Verify output/contact operation and LED condition independently.
Check:
Loose terminal screws
Oxidized wiring
Field sensor/contact instability
Supply fluctuations
Vibration-related connection faults
Marine control panels experience continuous vibration, so terminal condition is especially important.
A replacement annunciator should ideally be bench-tested before installation.
Useful checks include:
Power-up test
All 10 alarm inputs
Individual channel indications
Common alarm output
Flicking/flashing behavior
Delay timer operation
Terminal continuity
Alarm reset / acknowledge sequence where applicable
Testing should be based on the correct supply and wiring diagram.
Before ordering, provide:
Manufacturer: Hyomyung Engineering
Model: HM10P-GA
Product: Group Annunciator
Number of Channels: 10
Existing Supply Voltage: verify from rear/nameplate
Terminal Layout: photograph recommended
Panel Size / Cutout: verify
Alarm Sequence: verify
Common Alarm Requirement: verify
Front and Rear Photographs: strongly recommended
This prevents the wrong annunciator variant from being supplied.
SM MARINE SERVICE™ supplies and sources HYOMYUNG HM10P-GA Group Annunciators and related marine alarm, signal and control equipment.
Relevant enquiry references include:
HYOMYUNG HM10P-GA
HYO MYUNG HM10P-GA
HM10PGA
10 Channel Group Annunciator
Marine Alarm Annunciator
Engine Room Alarm Panel
Switchboard Alarm Annunciator
Related family searches include:
HM4P-GA
HM6P-GA
HM15P-GA
subject to exact model and configuration verification.
Available equipment may include:
New • Used • Refurbished • Reconditioned • Tested Working Condition
Buyers can also search Hyomyung alarm and control products through www.smmarineservice.com.
It is a 10-channel Group Annunciator for alarm indication and common-alarm monitoring in marine and industrial control panels.
Hyomyung Engineering, a Korean marine electrical and automation equipment manufacturer.
The photographed model provides 10 individual alarm channels.
It refers to the common alarm indication/output associated with individual alarm states.
It appears to refer to the alarm flashing/flickering indication function used to highlight alarm status.
Yes. The front panel clearly identifies a DELAY TIMER function.
Hyomyung manufactures annunciators and other marine electrical/control products, and supplier references list HM-series group annunciators within its marine equipment range.
No. They belong to the same broader family but have different model/channel configurations. Interchangeability should not be assumed.
Depending on stock, SM MARINE SERVICE™ can support new, used, refurbished and reconditioned marine equipment requirements.
HYOMYUNG ENGINEERING HM10P-GA 10-Channel Group Annunciator for marine switchboards, machinery-control panels and alarm-monitoring systems. Front functions include Alarm Source, Flicking indication, Delay Timer, Common alarm and ten individual alarm channels. Suitable for replacement and sourcing enquiries involving Hyomyung/Hyo Myung marine annunciators and HM-series alarm panels. New, Used, Refurbished and Reconditioned HM10P-GA units available from SM MARINE SERVICE™ with worldwide shipping and technical support.
Marine Automation & Navigation Equipment Supplier
Available Condition:
• New Equipment • Used Equipment • Refurbished Equipment • Reconditioned Equipment
Stock Location:
• Bangladesh • China
Services:
• Worldwide Shipping • Technical Support • Spare Parts Supply • Marine Equipment Sourcing
SM MARINE SERVICE™ Samir Market, DT Road, Pahartali, beside CDA Market, Chattogram, Bangladesh
Mobile / WhatsApp / Viber: +88 01818 929292
Email: info@smmarineservice.com
Website: www.smmarineservice.com
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