Product Name: 4 Channel Power Distribution Module
Brand Name: HIMA
Model Number:F7553
Country of Origin:GERMANY
Warranty: 12 Months
Whatsapp：+86 18159889985
Email：[email protected]
Brand Name: |
HIMA |
Model Number: |
F7553 |
Country of Origin: |
GERMANY |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
Delivery time in stock |
Payment Terms: |
T/T |
Supply Ability: |
in stock |
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Sales Manager: |
Stella |
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Send an email: |
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Contact in Whatsapp: |
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Parameter |
Specification |
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Manufacturer |
HIMA Paul Hildebrandt GmbH |
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Part Number |
F7553 (984755302) |
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Product Type |
IO Bus Coupling Module |
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System Compatibility |
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Assembly Kit |
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Rack Slot |
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Space Requirement |
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Supply Voltage |
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Current Draw (5 V DC) |
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Current Draw (24 V DC) |
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Weight |
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Operating Temperature |
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Storage Temperature |
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Humidity |
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Safety Integrity Level |
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Mounting |
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Front Panel Indicators |
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Configuration |
Coding switches S1.1 – S1.4 (IO bus / subrack addressing) |
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Special Feature |
Recessed WD switch for hot-swap replacement |
The F7553 (also referenced as 984755302 ) is an IO bus coupling module engineered by HIMA for the PES H51q and HIMatrix safety instrumented systems (SIS). This F7553 module serves as the communication bridge between the central processing unit and I/O subracks. As part of assembly kit B 9302, the 984755302 monitors the 5 V supply of the I/O subrack and transmits status signals to the central module. The F7553 integrates fail-safe watchdog monitoring with automatic self-testing during operation, ensuring data consistency and SIL 3-compliant safety communication.
Hot‑Swap Capability – Recessed WD switch allows module replacement without triggering a system emergency stop, minimizing downtime in critical processes
SIL 3 Compliance – Engineered for safety-instrumented systems with self-diagnostic functions meeting IEC 61508 SIL 3 requirements
Automatic Self-Testing – Continuous background diagnostics during operation ensure functional integrity without manual intervention
Integrated System Monitoring – Combines 5 V supply supervision, watchdog management, and IO bus communication in a single 4 TE module
Flexible Addressing – Coding switches (S1.1–S1.4) enable straightforward IO bus and subrack numbering configuration
Fail‑Safe Watchdog Monitoring – Front‑panel LED (WD) indicates the presence of the safety‑related watchdog signal
I/O Access Indication – Second LED (SEL) signals active communication with I/O modules in the associated subrack
Recessed WD Switch – Shrouded switch disables the watchdog signal, enabling module exchange without system error stop
Coding Switches (S1.1 – S1.4) – Set IO bus (cabinet) and subrack numbers for system identification
5 V Supply Monitoring – Continuously supervises I/O subrack power and transmits status to the central module
Automatic Self‑Diagnosis – Module undergoes automatic testing during operation to ensure correct functionality
Compact 4 TE Format – Space‑efficient design for 19‑inch racks
The F7553 coupling module functions as the interface between the central processing module and the I/O subrack within a HIMA PES H51q safety system. It operates on dual voltage rails (5 V DC for logic, 24 V DC for field circuits). The module continuously monitors the 5 V supply of the I/O subrack; if a deviation is detected, it transmits a corresponding status signal to the central module for system-level fault handling.
The fail‑safe watchdog signal is managed through dedicated circuitry and displayed via the front‑panel WD LED. When the recessed WD switch is activated, the watchdog signal for the associated subrack is temporarily disabled, allowing the F7553 to be exchanged while the central module continues operation without triggering an error stop. This feature is critical for maintaining system availability during maintenance—if the switch is not operated before removal, the entire system transitions into an error stop state.
The module performs automatic self‑testing during runtime, verifying its internal functions and communication paths. Coding switches S1.1 through S1.4 configure the IO bus and subrack addressing, enabling the central module to uniquely identify each F7553 within a multi‑cabinet or multi‑rack configuration. The SEL LED provides visual confirmation of active I/O module access, simplifying on‑site diagnostics.
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Item |
Description |
Part Number / Reference |
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Coupling Module |
IO bus coupling module for PES H51q / HIMatrix |
F7553 (984755302) |
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Assembly Kit |
I/O subrack kit (4 HU, 19-inch) including F7553 + flat cable |
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Assembly Kit (0.5 m) |
B 9302 with 0.5 m flat cable |
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Assembly Kit (1.0 m) |
B 9302 with 1.0 m flat cable |
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I/O Subrack |
4 units high, 19-inch, with cable tray and label holder |
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Flat Cable |
IO bus connection cable (length varies by order) |
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Power Distribution Module |
4-channel fused power distribution (optional, slots 18–21) |
F 7133 |
EN
