F 7126A | HIMA F7126A Power Supply

The HIMA F 7126A Power Supply is designed for H51q systems to provide reliable and safe power conversion between 24 VDC and 5 VDC. It ensures compliance with international standards for electrical safety and EMC, offering robust performance even under challenging industrial conditions.

Key Features

1. Voltage Specifications:
   • Input: 24 VDC
   • Output: 5 VDC
   • Supply Voltage Range: 24 VDC (-15% to +20%)
   • Transient Voltage Tolerance: Short-term dips up to 20 ms.
2. Safety Compliance:
   • Supports SELV (Safety Extra Low Voltage) or PELV (Protective Extra Low Voltage) requirements.
   • Adheres to NAMUR NE 21 recommendations for handling voltage dips.
3. Mechanical Design:
   • Compact H41q Devices:
     • Subrack: 19-inch technology, 5 HU for central and I/O modules.
     • Max. 13 I/O modules (width: 4 SU).
   • Modular H51q Devices:
     • Central Subrack: 19-inch technology, 5 HU.
     • Max. 16 I/O subracks (4 HU each).
     • Max. 256 I/O modules (width: 4 SU).
   • Modular unit dimensions adhere to 1 SU = 5.08 mm and 1 HU = 44.45 mm.
4. Power Distribution:
   • Decoupled central unit power supply for voltage dip protection.
   • Noise blanking is parameterizable.
5. Connection and Wiring:
   • Front plate connections with LED displays for digital I/O modules.
   • Fire-retardant wires/cables are mandatory.
   • RS485 and Ethernet communication interfaces for system programming and expansion.
6. Ambient and Operating Conditions:
   • Operating Temperature: 0°C to +60°C (per IEC 61131-2).
   • Storage Temperature: -40°C to +85°C (without batteries).
   • Pollution Degree: II (per DIN VDE 0160).

System Data

Central Module Specifications

• Processor: Intel 386 EX (25 MHz).
• Memory:
  • Flash-EPROM for the operating system, function blocks, and user programs.
  • CMOS-RAM with lithium battery backup.
• Diagnostics:
  • Built-in system diagnostics with alphanumeric display and LEDs.
  • Error reporting for central device, I/O bus, and safety modules.
• Cycle Times:
  • 5 ms for single-channel systems.
  • 27 ms for redundant systems.

Interfaces

1. RS485:
   • Max. 12 interfaces for H51q systems.
   • Baud Rate: 300 bps to 57,600 bps.
2. Ethernet:
   • IEEE 802.3 with 100BaseT.
   • Max. 10 interfaces for redundant H51q configurations.
   • Speed: 100 Mbit/s.
3. Profibus-DP:
   • Max. 10 interfaces for redundant systems.
   • Speed: up to 12 Mbit/s.

Signal Definitions (IEC/EN 61131-2)

Input Signals

• L-Signal (0-Signal): -3 to +5 V or open input.
• H-Signal (1-Signal): +13 to +33 V (typical switching point: ~9 V).

Output Signals

• L-Signal (0-Signal): 0 to +2 V.
• H-Signal (1-Signal): +16 to +30 V.

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