Configured for power distribution in industrial control networks, the Yokogawa AIP826-2 S2 (AIP826-2 Power Supply Module) provides direct physical execution of AC-to-DC conversion and localized power regulation within the CENTUM DCS architecture.

Suffix Breakdown & Model Matrix

Hardware Specifications

DCS Process Control & Data Integrity

The AIP826-2 S2 maintains electrical isolation between the primary AC power source and the sensitive 24 V DC backplane rail to prevent electromagnetic interference. By regulating the 5 A output current, the module ensures consistent voltage delivery to field control units, protecting against brownout-induced data corruption. The integration of optional RS-485 or Profibus interfaces allows the module to transmit diagnostic data, such as output voltage status and thermal load, directly to the host DCS, facilitating proactive maintenance and power load management.

Frequently Asked Questions

Q: Can multiple AIP826-2 S2 modules be connected in parallel for load sharing?

A: Parallel operation for load sharing is generally not supported without specific output-diode protection modules. Connecting outputs directly can lead to circulating currents and damage to the internal regulation circuitry.

Q: How should the communication interface be configured if the optional module is present?

A: The communication parameters (baud rate, parity, address) must be set via the system engineering software. Ensure the bus is terminated at both ends according to the selected protocol (e.g., 120-ohm for RS-485) to prevent reflections.

Field Installation Guidelines

• Mount the module vertically within the cabinet, allowing for 100 mm clearance above and below the unit to ensure effective convection-based heat dissipation.
• Use copper conductors sized for the input and output current rating; verify that all AC input connections are bonded to the cabinet earth ground.
• Before initialization, confirm that the input AC voltage matches the 100–240 V AC range; verify the output terminal polarity to prevent short-circuiting of the 24 V DC bus.
• Keep input power lines physically isolated from analog signal wiring to prevent inductive coupling and potential measurement noise in field instrumentation.