AX521 New Original ABB Analog I/O Module

AX521 Analog I/O Module – 4 AI, 4 AO, U/I/Pt100, 12-Bit

Key Technical Specifications – Inputs

• Brand: ABB – Article number 1SAP 250 100 R0001.
• Channels: 4 analog inputs, grouped as one group of 4.
• Configurable ranges: 0‑10 V, ±10 V, 0‑20 mA, 4‑20 mA, Pt100, Pt1000, Ni1000.
• Resolution: 12 bits (12 bits including sign for bipolar ranges).
• Conversion error: typ. ±0.5 % of full scale at 25 °C; max. ±1 % over 0‑60 °C.
• Input filter time constant: 100 µs for both voltage and current.
• Overvoltage protection: Yes – handles incorrect connections up to 35 V.
• Channel indication: One LED per input shows signal status.

Key Technical Specifications – Outputs

• Channels: 4 analog outputs, all in one group.
• Output types: Bipolar voltage or unipolar current (configurable).
• Output ranges: ±10 V, 0‑20 mA, 4‑20 mA – each output individually set.
• Resolution: 12 bits including sign for voltage outputs.
• Settling time: typ. 5 ms for a full‑scale change.
• Load: 0‑500 Ω for current; max. ±10 mA load for voltage.
• Output LED: One LED per channel for status indication.

Power Supply & Galvanic Isolation

• Process voltage: 24 V DC nominal (–15 % / +20 %) with reverse polarity protection.
• Current consumption: 0.15 A from UP plus output loads; 2 mA from CPU/comm. interface.
• Inrush current: 0.020 A²s at power‑up – limits stress on the power supply.
• Galvanic isolation: Between channels and I/O bus – yes. Between channels – no.
• No isolation between channels and process supply (UP, ZP).

Frequently Asked Questions (FAQ)

• Q: Is the AX521 a new original unit?
  A: Yes, we supply only brand‑new, original ABB modules.
• Q: Can I configure each input individually?
  A: Yes – each of the 4 inputs supports individual range selection (V, mA, Pt100, etc.).
• Q: What is the conversion time for Pt100 inputs?
  A: Pt100/Ni1000 measurements take 1 second; other signals convert in 2 ms.
• Q: Does the module provide isolation between channels?
  A: No – all channels share a common group, but isolation exists to the I/O bus.
• Q: What happens if I connect the wrong polarity?
  A: The module detects wrong or no signal and withstands up to 35 V without damage.
• Q: Can I leave unused outputs open?
  A: Yes – unused outputs can remain open‑circuited without issue.
• Q: What is the return policy?
  A: We support 30‑day returns for unused items in original packaging.
• Q: Do you have stock available?
  A: Yes, we keep the AX521 in stock for fast shipment.

Contact Information Inquiries: sales@nex-auto.com , +86 153 9242 9628

Partner NexAuto Technology Limited : https://www.nex-auto.com/