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Yokogawa UT55A-021-10-00/LP | 1/4 DIN PID Controller, 4 DI, 2 DO, 24V DC

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"ACH has proven to be a reliable partner. Their products are genuine and high-quality, with competitive prices and on-time delivery. We trust them as our long-term supplier in automation."

—— Mohammed Al-Farsi, Procurement

"For us, cost efficiency and authenticity are key. ACH helps reduce expenses while ensuring reliable quality and timely supply, making them a strong partner in our operations."

—— Procurement Manager

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—— Supply Chain Director

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Yokogawa UT55A-021-10-00/LP | 1/4 DIN PID Controller, 4 DI, 2 DO, 24V DC

Large Image : Yokogawa UT55A-021-10-00/LP | 1/4 DIN PID Controller, 4 DI, 2 DO, 24V DC Get Best Price

Product Details:

Place of Origin:	KR
Brand Name:	YOKOGAWA
Certification:	ATEX
Model Number:	UT55A-021-10-00 LP
Document:	ACH-AB-P+F-E+H-IFM-ASCO-YOK...WA.pdf

Payment & Shipping Terms:

Minimum Order Quantity:	1
Price:	Negotiable
Packaging Details:	carton
Delivery Time:	Negotiable
Payment Terms:	T/T,XT,ALIPAY
Supply Ability:	100pcs per month

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Yokogawa 1/4 DIN PID controller

PID controller 4 DI 2 DO

24V DC PID controller

Yokogawa UT55A-021-10-00/LP | 1/4 DIN PID Controller, 4 DI, 2 DO, 24V DC

Yokogawa UT55A-021-10-00/LP digital indicating controller. 1/4 DIN, universal input, 4-digit LED, 4 DI / 2 DO, 24V DC supply, ladder program function, IP66 front.

Product Overview

The Yokogawa UT55A-021-10-00/LP is a 1/4 DIN (92×92mm) digital indicating controller from the UTAdvanced (UT55A) series. It features a universal input (TC, RTD, mA, V), 4-digit 7-segment LED display, 4 digital inputs, 2 relay contact outputs, and a ladder sequence program function for custom control logic. Powered by 24V DC, this model is designed for precise PID temperature and process control in furnaces, ovens, packaging machines, and semiconductor equipment.

Technical Specifications (Control & I/O)

Parameter	Specification
Model / Series	UT55A-021-10-00/LP (UTAdvanced Series)
Panel Size	1/4 DIN (92 × 92 mm cutout)
Input Type	Universal — TC (K, J, R, S, etc.), RTD (Pt100), 0–20mA, 4–20mA, 0–5V, 1–5V
Control Outputs	2 Relay Contact Outputs (Standard — for Heat/Cool or Alarm)
Digital Inputs (DI)	4 points (for RUN/STOP, SP change, Auto/Man, etc.)
Digital Outputs (DO)	Not included (Relay outputs serve as control/alarm; optional expansion DO on comms module)
Control Algorithm	PID with Auto-tuning (AT), ON/OFF, PD, PI, 2-degrees-of-freedom PID
Special Function	Ladder Program Function (/LP suffix) — 64 steps user logic

Technical Specifications (Electrical & Mechanical)

Parameter	Specification
Power Supply	24 V DC (±10%, 50/60 Hz)
Display Type	4-digit 7-segment LED (PV) + 4-digit (SV/Param) + Status LEDs
Communication (Option)	Not included in base (-00 = no comms module; can add FA-M3/PROFIBUS/ETH later)
Front Protection	IP66 / NEMA 4X (Faceplate)
Case Depth	~100 mm behind panel
Ambient Temperature	0 … +50 °C (Operating)
Standards	CE, UL, cUL, KC

Key Features

Ladder Sequence Programming (/LP): Built-in 64-step ladder logic allows creation of custom interlock sequences, alarm logic, and start-up procedures — reducing the need for external PLC I/O.
Universal Input Flexibility: One device covers TC, RTD, voltage, and current signals — simplifies spares inventory.
Dual Output + 4 DI: Two relay outputs handle heat/cool or heat/alarm; four digital inputs allow external switch control of setpoints, mode changes, or hold functions.
Advanced PID with Self-Tune: Auto-tuning determines optimal PID constants on first heat-up; robust against process gain changes common in thermal applications.

Applications

Heat Treatment & Furnaces: Kiln, oven, and furnace temperature control with ramp/soak (via ladder or external programmer).
Plastic & Packaging Machines: Barrel and sealing jaw temperature regulation with custom start/stop logic.
Semiconductor Process Tools: Precise bath and chuck temperature control with interlock functions.
Food & Pharmaceutical Ovens: Sanitary-area temperature monitoring with NEMA 4X front face.

Note: "/LP" indicates the Ladder Program Function is enabled. The "-021-10-00" breakdown: 0=UT55A, 2=24V DC, 1=Relay x2 + 4DI, 0=No retransmission, 10=Eng. text / Std spec, 00=No comms/options. For RS-485 or Ethernet communication, a plug-in communications module (FA-M3 etc.) must be added separately.

Yokogawa UT55A-021-10-00/LP | 1/4 DIN PID Controller, 4 DI, 2 DO, 24V DC 0

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About ACH

Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.

Frequently Ask & Questions

Are preferential prices available?

Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.

Are the Products Genuine OEM Units?

Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.

How will you arrange shipment?

We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.

What is the warranty of goods?

One-year Warranty.

How long is the logistics cycle of the product?

Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.

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