Overview
The ABB AO845A is a high-performance analog output module designed for ABB’s System 800xA and S800 I/O platforms. It provides eight unipolar analog output channels, each capable of delivering 4–20 mA current signals, which are commonly used in industrial automation systems to control actuators, valves, and other field devices.
This module is suitable for both single and redundant configurations, making it ideal for critical process environments where uptime and reliability are essential. It features cyclical self-diagnostics that monitor both internal and external conditions, such as open circuits, short circuits, output transistor faults, and power supply issues, ensuring early detection of failures and simplifying maintenance.
The AO845A supports hot swapping, allowing engineers to replace the module without needing to shut down the system, which is particularly valuable in continuous process industries such as oil & gas, power generation, and chemical manufacturing.
Technical Data / Specifications
| Parameter | Specification |
|---|---|
| Model | AO845A |
| Operating Temperature | –20°C to +55°C |
| Dimensions (H × W × D) | 186 mm × 59 mm × 127 mm |
Typical Applications / System Integration
The AO845A is widely used in distributed control systems (DCS) and programmable automation controllers (PACs) where precise analog control is required. Its typical applications include:
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Oil & Gas: Controls valve actuators and flow regulators in both upstream and downstream operations.
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Power Generation: Sends control signals to turbines, boilers, and auxiliary systems.
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Chemical Processing: Regulates dosing pumps, mixers, and temperature control loops.
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Water & Wastewater: Manages flow control and chemical injection systems.
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Pharmaceuticals: Supports batch control and environmental monitoring systems.
With its redundancy support and diagnostic features, the AO845A is perfect for mission-critical applications where reliability and safety are paramount.
FAQ
Q: What type of signal does the AO845A output?
A: It outputs 4–20 mA unipolar current signals.
Q: Can it be used in redundant systems?
A: Yes, it supports both single and redundant configurations.
Q: Does it support hot swapping?
A: Yes, the module can be replaced without shutting down the system.
Q: What diagnostics are included?
A: The module detects open circuits, short circuits, output transistor faults, and internal errors.
Q: What systems is it compatible with?
A: The AO845A is compatible with ABB System 800xA and S800 I/O platforms.
| Brze ponude | Brzo primite cenu i dostupnost od našeg posvećenog tima za korisničku podršku. |
|---|---|
| Isporuka | Dostupna je ubrzana, teretna i međunarodna dostava. |
| Stanje | 100% novo sa originalnim pakovanjem |
| Plaćanje | Prihvatamo American Express, Discover, MasterCard, PayPal i Visa. Naš sajt je zaštićen RapidSSL-om. |
| Luka za isporuku | Šangaj, Sjamenu |
| Garancija | 12 meseci |
| Q: Da li su naše cene konkurentne? |
| A: Da, sarađujemo sa preko 50 zemalja širom sveta. Kao vodeći dobavljač u Kini, nudimo značajne popuste u skladu sa tržišnim trendovima. |
| Q: Koji je garantni rok? |
| A: Svi naši novi i originalni proizvodi dolaze sa standardnom garancijom od jedne godine. |
| Q: Koje metode plaćanja prihvatamo? |
| A: Zahtevamo 100% T/T (telegrafski transfer) uplatu pre slanja. Za artikle sa rokom isporuke, potrebno je unapred uplatiti 30% depozita, a preostalih 70% pre slanja. Ako imate predstavnika u Kini, možete preko njega organizovati RMB transfer. |
| Q: Koje metode isporuke koristimo? |
| A: Pretežno koristimo FedEx, DHL, UPS i BRE za isporuku. Ako imate nalog kod nekog od ovih prevoznika, možete direktno organizovati slanje. Takođe nudimo besplatnu dostavu do špeditera sa sedištem u Kini. |
| Q: Koje je naše vreme isporuke? |
| A: Isporuka obično traje 1-3 dana nakon prijema početne uplate. Za artikle sa rokom isporuke, slanje će se obaviti prema navedenom rasporedu. |
| Q: Kako pakujemo robu? |
| A: Obavezujemo se na bezbedno pakovanje sa višeslojnom zaštitom. Proizvodi se prvo stavljaju u originalne kutije i zapečate etiketama. Zatim se dodaje sloj mehurićaste folije za zaštitu od udara tokom transporta. Na kraju, predmeti se sigurno pakuju u čvrste kutije. |
| Q: Kako kupci mogu da nas kontaktiraju i zatraže ponudu? |
| A: Možete nas kontaktirati putem e-pošte, WhatsApp-a, WeChat-a, Skype-a ili vaše omiljene komunikacione platforme. Obratite nam se sa vašim potrebama, i pružićemo vam brzu, prilagođenu ponudu. |
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