Others

The HIMA 90900 subrack integrates seamlessly with the HIMA Planar4 System, accommodating up to 20 modules in locations 1–20. Location 21 is reserved exclusively for the communication module.

Key Features

• Fully assembled aluminium chassis with chromated surface ensures durability and safety.
• Rear bus PCB contains socket connectors, soldering strips, and integrated bus structure.
• Connects internal 24 VDC power supply, common busbar, and fault signal loops.
• Includes front labeling field and rear cable duct for organized wiring.
• Supports Ex(i) modules with replaceable connection strips.

Technical Specifications

Bus PCB and Wiring Principles

• EL+ connects through a fuse or circuit breaker rated at 16 A with 2.5 mm² wire cross-section.
• L- reference pole connects from L- distribution bar to terminal blocks XG.1 and XG.6.
• Terminal blocks XG.2 to XG.5 are floating and provide separate supply lines for L+ and L-.
• For fault signal loops, link pins z26–d26 of unused modules to EC terminals.
• Avoid mechanical stress by removing plug terminal blocks before connecting or removing wires.
• Earth connections bond to the subrack’s metal parts for grounding and safety compliance.

Module Installation and Safety Notes

• Use separate supply lines for power outputs to maintain current limits.
• Replace rear connection strips with Ex types if using Ex(i) modules.
• Standard subracks with 32-pole connectors can be used if no external communication is required.

Bus PCB Rear View

​The HIMA 90900 subrack ensures organized installation, reliable power distribution, and flexible module configuration for Planar4 System applications.

Details