UTAdvanced UP35A/UP32A

Name: UTAdvanced UP35A/UP32A
Brand: Yokogawa
SKU: up35a-up32a

The UP35A is a program controller with available 4 patterns and 40 segments (max.) and multi-channel contact I/O. It also includes a ladder sequence function. The UP32A is a compact program controller with up to 4 patterns and 40 segments available. It also includes a ladder sequence function.

UTAdvanced

Reliability

CSA C22.2 61010-/1
UL61010-1

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Technical Support

Brochures
Instruction Manuals
General Specifications

Overview
Details
Resources
Downloads

Overview
Details
Resources
Downloads

Overview

Advanced Control

Ladder sequence control
Fuzzy logic control

Simplicity

Easy-to-read, 14-segment large color LCD display
Scrolling text feature for parameters
Navigation guide & navigation keys
Programmable funciton keys
User settable default values
Multiple language support (English, Spanish, French, German)
Compact design of 65-mm depth

Networking

Ethernet (Modbus/TCP)
RS-485 (Modbus/RTU, peer to peer, coordinated, PC-Link)
Open network (PROFIBUS-DP, CC-Link, DeviceNet)

Reliability

3 year warranty*1
RoHS/WEEE
NEMA4*2/IP66 front panel

*1: The 3 year warranty extendes 36 months after shipment from our factory.
*2: Hose-down test only

Application Software

LL50A parameters setting software with the ladder program building function (sold seperately)

Reliability
CSA C22.2 61010-/1
UL61010-1

【Support Information】

【Support Information】

【Support Information】UTAdvanced Series Parameter Maps and Lists

UTAdvanced series Parameter map list for each model can be downloaded.
Please use it to manage and save the set parameters. Also please use it as a reference for the key operation at that time.

【Support Information】List of RoHS

This is a list of recorder and controller products that support the RoHS (2011/65/EU) directive.

【Support Information】New Legislative Framework (NLF) Conforming Products

This is a list of recorder and controller products that support the New Legislative Framework (NLF.)

References
Application Notes
FAQs

References
Application Notes
FAQs

Reference

Control of Heat Treating Furnace Operation

Application Note

Controlling a pharmaceutical sterilizer/pasteurizer

I use the UP under batch control. I want to display a message on the front panel of the UP after batch control stops.

(ns-faq-ut-2169-setting)

You can do this with the message function. For details, see section 13.1.10, "Setting Message Function" in user's manual IM 05P02C41-01EN.

While a program is running, I want to judge advancing to the next segment with an operator. How can I do that?

(ns-faq-ut-2142-setting)

Set junction code JC = HOLD. With this setting, it automatically enters the HOLD state when segments switch. Use operator determination to perform the ADV (advance) operation, and then move to the next segment.

How can I delete a segment from a UP program pattern through CC-Link communication?

(ns-faq-ut-2189-setting)

You can't delete a segment from a UP program pattern by using CC-Link communication. You'll need to delete the program pattern and then write a new one.

I want to write program patterns to the UP Program Controller via communications, but can I do that while the UP is running a program?

(ns-faq-ut-2201-connect)

No.The same is true during HOLD.

At the end of UP32A/UP35A/UP55A programs, does the PIDNo. change when local is set (JC=LOCAL)?

(ns-faq-ut-2079-spec)

If you set JC=LOCAL, local operation status begins when the last segment of program operation ends. In this case, when zone PID (ZON=1,2,4) is selected, the PID group switches according to the selected zone. When segment PID (ZON=0) is selected, the ...

Can I use DO to transmit the pattern number currently used on the UP to an external device?

(ns-faq-ut-2216-setting)

Yes. Assign an I relay to the DO parameter.

On a program controller, can I do contact output when an operation parameter ends?

(ns-faq-ut-2134-setting)

ALn.SSet ALn function selection (within the ALM setup parameter) to a pattern end signal (where n is 1, 2, 3). Pattern end signal (1 sec):4265 Pattern end signal (3 sec):4266 Pattern end signal (5 sec):4267 * Time in parens. () is ON time...

With program controllers, can you change the SP while programs are running?

(ns-faq-ut-2133-setting)

If the segment setting type SEG.T (within setup parameter CTL) is TIME: segment time setting, you can temporarily change it after a hold. This is not reflected in the original program. If the segment setting type SEG.T is TM.RT: segment slope/time se...

Can I set control for power fail recovery to MAN?

(ns-faq-ut-2117-setting)

For a power failure of approximately 5 seconds or more, you can do this with the restart mode R.MD setting. For power failures of less than approximately 5 seconds, the control operation prior to the power failure continues. ...

How do I set up output of alarm output 1 from the UP32A/UP35A/UP55A AL1 terminals (relay contact output)?

(ns-faq-ut-2082-setting)

In the setup parameter ALM menu, set the AL1.S parameter to 4353 (AL01_L1). [Supplement] 4321(ALM1) is the alarm status of ON when an alarm occurs, and OFF when normal. 4353(AL01) is the alarm status determined by applying the settings for alarm en...

I want to wire a 2-wire transmitter and a 24 VDC sensor power supply.

(ns-faq-ut-2119-connect)

You can use this with suffix codes /LP, /L1, /LCH, /L4, and /LC4. For wiring to a 2-wire transmitter, the controller is equipped with an insulated sensor power supply (21.6 to 28.0 VDC). ...

I want to check the program controller patterns from the main unit.

(ns-faq-ut-2122-setting)

With TSP, TIME, JC, and others displayed in the program pattern setting screen, you can switch between segments using the left and right arrow keys.

With program controllers, can you do auto-tuning while programs are running?

(ns-faq-ut-2128-setting)

If you perform auto-tuning while programs are running, the program time pauses, and then resumes after auto-tuning is done. (Note that auto-tuning fluctuates the output and PV.)

With a program controller, if you don't turn ON the wait function on/off 1–5 setting (parameter WT.SW1–WT.SW5), does the wait function not operate?

(ns-faq-ut-2127-spec)

That's correct. Also set the wait zone (WT.UP1–5, WT.LO1–5) and wait time (WT.TM1–5) accordingly.

I want to convert my old controller (GREEN series) parameter data for the UTAdvanced series. Is there a program for that?

(ns-faq-ut-2222-soft)

Yes. Software for converting your existing controller parameter data for use with the UTAdvanced series is available for download free of charge. GREEN to UTAdvanced Conversion Tool *Log-in Required ...

I used the parameter conversion tool to convert GREEN series data for the UTA series. I can’t add the CC-Link communication option code to the converted data.

(ns-faq-ut-2230-spec)

You can use the conversion tool. You don’t have to do anything after you create it. The steps are as follows: Perform the Green conversion using the conversion tool. Write the converted file to the UTA (with the CC-Link option) main unit. ...

Can I use square root extraction on measured input?

(ns-faq-ut-2183-spec)

Yes, by using a ladder program function. Use the square root command (SQR).Note that you can't set a low signal cutoff point. To use the ladder function, you will need the LL50A parameter setting software.

Can I convert GREEN series (UT300/UT400/UT500/UP500) parameters for use with the UTAdvanced series?

(ns-faq-ut-2060-soft)

Yes, you can use the GREEN-UTAdvanced parameter data conversion tool (available as free download). Using the LL100/LL200 parameter setting tool, save the GREEN series parameters to a file, convert them using the conversion tool, then apply the settin...

Which station type should I select for the UTAdvanced series for CC-Link communication: Remote I/O, Remote Device, or Intelligent Device?

(ns-faq-ut-2164-setting)

The UTAdvanced series is a “Remote Device station.”

I purchased a unit with CC-Link communication. I'm setting up the parameters for CC-Link, and there are 2 communication speed settings, BR and BPS. Which setting should I use?

(ns-faq-ut-2166-setting)

BR is the communication speed for CC-Link. BPS is the communication speed for the Modbus master function (RS485).

Can I read a valve opening value via communication on a position proportional controller?

(ns-faq-ut-2159-spec)

Yes. Data in D register number D2005 is the valve opening value. Note that with a position proportional controller, D2006 is the PID computed value.

I'm writing PID settings via CC-Link communication, but when I send 100 to proportional band P, 10.0 appears on the main unit.

(ns-faq-ut-2138-setting)

Proportional band P has data of up to 1 decimal point. By contrast, communication data has no decimal point. If you want to write 100.0% to P, send 1000. For differential and integral time, the data has no decimal point.

Can a UT100 series instrument be connected downstream of a UTAdvanced series with CC-Link communications?

(ns-faq-ut-2125-spec)

No, a UT100 series instrument cannot connect. Only other UTAdvanced series instruments can connect.

Can I connect transmission output (current output) to a voltage input meter?

(ns-faq-ut-2135-setting)

If you connect a shunt resistance to the input terminal of the receiving side meter, you can input it as voltage. For example, if you connect a 250 Ω shunt resistance to 4–20 mA output, it's 1–5 V. Make the resistor, including the wiring, that ...

I want to perform autotuning via communication on a UT with CC-Link communication. Should I turn AT_L1 which is assigned to the OUT area in the profile to ON (=write 1)?

(ns-faq-ut-2175-program)

Autotuning is performed when you turn AT_L1 in the OUT area to ON (= set to 1). Please make sure that AT_L1 in the OUT area turns OFF (= set to 0) after autotuning is finished.

b.out was displayed on the controller's PV display. What does that mean?

(ns-faq-ut-2148-spec)

b.out indicates a burnout on the measurement input. It appears when measurement input wiring is disconnected. Check the sensor and wiring.

Sometimes data can't be written to the "1.SP" register via CC-Link communication. What causes this?

(ns-faq-ut-2178-spec)

When writing individual parameters via CC-Link communication, if the data values to write are not different from the existing ones, overwriting of the values does not occur. If you write all parameters by individual communication address and the valu...

What is the model of the current transformer for heater current measurement used by UTAdvanced?

(ns-faq-ut-2248-spec)

Recommended CT:U-RD CTL-6-S-H: CT ratio 800, measurable current range: 0.1-80.0 Arms CTL-12L-30: CT ratio 3000, measurable current range: 0.1-180.0 Arms

How can I display the currently used PID no. on the operation screen?

(ns-faq-ut-2249-setting)

Turn OFF the U.PID parameter symbol in the setup parameter KLOC menu.

Can you describe the register symbols in the profiles for open network communication?

(ns-faq-ut-2115-term)

See the UTAdvanced Series Communication Interface (RS-485, Ethernet) User's Manual.

I have the /LP option and I’m wiring a 2 wire transmitter power supply. How can I input a simulated current signal?

(ns-faq-ut-2239-connect)

Use a current generator with a SINK function (transmitter simulation).

What happens if I write data outside the specified range via CC-Link communication?

(ns-faq-ut-2181-spec)

If outside of the parameter setting range, data is not written.

Downstream from a UT with CC-Link communication (the Modbus master), the power to a controller connected via RS485 communication (the Modbus slave) went out. After the power to the controller was restored, communication did not restart. What should I do?

(ns-faq-ut-2179-spec)

Either set the SCAN parameter, or turn ON the rescan request flag on the PLC side.

Sometimes with CC-Link communication it stops writing data. What should I do?

(ns-faq-ut-2180-spec)

When the writing flag (RX1) is ON, the next write process can't proceed. Make sure the writing flag (RX1) is OFF before performing a write process.

I want to perform autotuning via communication on a UT with CC-Link communication. Should I turn AT_L1 which is assigned to the OUT area in the profile to ON (=write 1)?

(ns-faq-ut-2175-program)

Autotuning is performed when you turn AT_L1 in the OUT area to ON (= set to 1). Please make sure that AT_L1 in the OUT area turns OFF (= set to 0) after autotuning is finished.

Is there support for the "CC-Link IE" standard?

(ns-faq-ut-2182-spec)

No. Only the conventional CC-Link Ver. 1.1 or 2.0 standards are supported.

What does the Ethernet 2 connections max mean?

(ns-faq-ut-2023-spec)

This means that each unit can be accessed via Ethernet from up to 2 locations at once.

After changing the UT's SP values from the MELSEC via CC-Link, when I change the SP value on the UT main unit, I can't change to the same value as before from the MELSEC.

(ns-faq-ut-2026-connect)

As for individually writing parameters via CC-Link, changing OUT area values constitutes a write request. In your case, since the OUT area value hasn't changed from the previous value, the SP value is notoverwritten. As a fix, periodically copy t...

With CC-Link, I write 1 to RY48 and change to MAN, and then change to AUTO using the main unit A/M key. Can you tell me how to change back to MAN again via CC-Link?

(ns-faq-ut-2027-connect)

Yes. Return RY48 to 0, and then write 1 again.

With the types that have an Ethernet communication function, even if I set the Ethernet setting switch to "1," it reverts to "0."

(ns-faq-ut-2022-connect)

The Ethernet setting switch is designed to enable Ethernet related parameter settings. Setting the parameter to ENTRY "1" enables the parity, IP address, subnet mask, default gateway, and port number settings. When you set this parameter to...

Can I set up 4 alarm relay outputs?

(ns-faq-ut-2016-setting)

If you don't need to use the control relay output, you can use it as an alarm relay output. Adding that to the standard-equipped 3 alarm relay outputs gives you 4 outputs.

Is there a C contact with alarm contact output?

(ns-faq-ut-2112-spec)

If a control relay output (C contact) is unused, you can use it for alarms.

Can you tell me the procedure for assignment when the heater break alarm output option (suffix code /HA) is installed?

(ns-faq-ut-2015-setting)

Assignment settings are not necessary. The heater break alarm output has a dedicated output terminal.

Can I switch between RUN and STOP via CC-Link?

(ns-faq-ut-2029-connect)

RUN/STOP is set to contact input DI2 by default, and takes precedence over communication. Set S/R to OFF with DI.SL.

What profile number is used when using CC-Link on only 1 unit?

(ns-faq-ut-2028-connect)

Use profile number 0. You can also use CCLink even if you delete the parameter assignments of Modbus slave 2 from the user profile.

What is the Modbus master function that is added when CC-Link communication is installed?

(ns-faq-ut-2069-spec)

It allows communication with RS-485 compatible UTAdvanced series instruments via CC-Link. It allows acquiring data from downstream controllers that do not have CC-Link communication, and writing parameters.

What happens to transmission output when an input OVER occurs at 4–20 mA input (PV: 4–20 mA)?

(ns-faq-ut-2081-setting)

The output is restricted to a lower limit of 3.2 mA (-5%) and an upper limit of 20.8 mA (105%), but only when the transmission output scale RTH and RTL settings are the same as the PV input range.

Do you have a 48 x 96 sized controller that supports CC-Link?

(ns-faq-ut-2091-select)

We have the UT52A/UT32A/UP32A in the UTAdvanced series. For an indicator with alarms, we have the 96 x 48 sized UM33A.

I connect multiple UTs as CC-Link slaves. How should Iassign PLC CPU registers?

(ns-faq-ut-2092-connect)

Open registers for the number of proprietary stations per unit. For example, if there are 3 CC-Link Ver. 1 stations are occupied, the bit area occupies 96 bits per station and a word area of 12 words per station. If the refresh device of the word ar...

To use valve opening in a position proportional type UT ladder program, which register should I reference?

(ns-faq-ut-2040-program)

Reference OUT_L1 (process monitoring → process data).

Can I change the temperature controller profile information for CC-Link communication?

(ns-faq-ut-2068-spec)

You can change it if it is in a user profile (profile no. 0).To create a user profile, use the LL50A network profile tool.

Can I output an alarm (close the alarm terminal) on a power failure?

(ns-faq-ut-2056-setting)

If not using relay contact output for control, you can use it as a 4th alarm. This alarm would be the C contact type, therefore by connecting it to the N.C. (normal close) side you can use it as an alarm terminal. Note that when changing the basic sp...

Is calibration still required if the position proportional type feedback input is current?

(ns-faq-ut-2059-spec)

Yes. It is required.

With 1-5 VDC input, can I make the PV display 0.00 to -10.00 kPa?

(ns-faq-ut-2156-setting)

Yes. Set the following: IN=1-5V, RH=1.000, RL=5.000, SDP=2, SH=0.00, SL=-10.00.

I'm controlling flue levels. Are there PID reference values?

(ns-faq-ut-2155-setting)

Try proportional control. Perform tuning with these reference values: P=10%, I=OFF.D=OFF, MR=0%.

I'm controlling flow. Are there PID reference values?

(ns-faq-ut-2154-setting)

Perform tuning with these reference values: P=150 to 200, I=10 to 20, D=OFF.

I'm controlling pressure. Are there PID reference values?

(ns-faq-ut-2153-setting)

Perform tuning with these reference values: P=150 to 200, I=10 to 20, D=OFF.

What is the measured current during RTD input?

(ns-faq-ut-2167-spec)

It is approximately 0.16 mA.

Valve calibration parameters don't appear on position proportional controllers.

(ns-faq-ut-2147-setting)

It appears when the controller's operation mode is RUN and MAN.

Can you tell me how to get the measurement accuracy when measuring 0 to 1000°C with a type K thermocouple? I selected input type K2 (-270.0 to 1000.0).

(ns-faq-ut-2163-spec)

Per the specifications, the accuracy of type K at 0°C or higher is ±0.1% ±1 digit. The measuring range in this case is that of the selected input type, -270.0 to 1000.0. You can calculate the accuracy as follows. ±0.1% of 127...

Can you tell me the inrush currents of the UTA series?

(ns-faq-ut-2162-spec)

At DC24 V: Approximately 17 A, 1.5 ms At AC100 V: Approximately 4.5 A, 3 ms At AC240 V: Approximately 11 A, 3 ms

I'm using a thermocouple for the input, but "b.out" appears on the PV display. What should I check first?

(ns-faq-ut-2160-other)

“b.out” on the PV display indicates a break in the input. Check whether the signal from the sensor is getting through. Also, to narrow down the cause, you can short the input terminal of the UT itself, then if the UT's input is normal the...

I want to create a ladder program that writes output tracking values via communication.

(ns-faq-ut-2158-setting)

In your ladder program, use variable register P01 and others, and write the P01 value via communication. Then do a MOV of the P01 data to the tracking input value (TRK_CTL).

Why are PID parameters set with relay output?

(ns-faq-ut-2123-spec)

It's time proportional PID. That means that in addition to relay output, it can support TRIAC and voltage output. With time proportional output, control calculation result is output using the pulse width of an ON/OFF signal proportional to time. The ...

I'm pressing SET/ENTER on the front panel keys but I can't change the SP value.

(ns-faq-ut-2171-setting)

Check the key lock. If you see the R.SP display, in Remote mode (REM), that means SP is being set by an external (upstream, etc.) device and cannot be changed.

Does the UTAdvanced series support CCC and GB standards? Can it be used in China?

(ns-faq-ut-2124-spec)

The UTAdvanced series is not a CCC standard scope. Since it has acquired the GB standard, it can be used in China.

What is the minimum hold time that contact input can detect?

(ns-faq-ut-2121-spec)

For controllers, the status detection minimum hold time is the control interval + 50 ms. Also, for indicating alarms, it's the input sampling interval + 50 ms.

I want to set the PID, output limiter, and hysteresis for each SP number.

(ns-faq-ut-2120-setting)

You can specify PID parameter groups for each SP number. Each PID parameter group includes PID, output limiter, hysteresis, and other items.

How can I check the RS485 communication status?

(ns-faq-ut-2116-connect)

For communication errors, the left side decimal point of the symbol display on the main unit blinks. If the SD or RD indicators light on upstream devices, check whether both are blinking.

Can the alarm operation be disabled during operation stop (STOP) or or manual operation (MAN)?

(ns-faq-ut-2129-setting)

You can do this with the AMD alarm mode settings (within the ALRM operation parameter). 0: Alarm always active 1: Alarm not active during operation stop 2: Alarm not active during operation stop or manual operation

I want to stop the lamp indicator or action for unused alarms.

(ns-faq-ut-2136-setting)

Set alarm types AL1–4 or 8 (ALRM operation parameter) to 0.0.0.00.

Can I remove the output limit value restriction during manual operation?

(ns-faq-ut-2143-setting)

By turning the OLMT output limiter switch OFF, the output limiter is disabled during manual operation.

What should I do if DI input is not accepted on relay contacts?

(ns-faq-ut-2141-spec)

Use a relay that supports miniscule currents. The minimum ON current of a contact input (DI) is approximately 1 mA.

Is there a limit on the number of times you can write to the D register via communication?

(ns-faq-ut-2140-spec)

No, there is no limit.

Can I assign heater disconnection alarm 1 to alarm 1 output (terminal no. 108-109)?

(ns-faq-ut-2137-setting)

Yes, set parameter AL1.S (AL1 function select) to 4529.

I'm controlling temperature by using voltage pulse output to operate a heater with an SSR, but I can't stop the hunting. I already performed auto-tuning.

(ns-faq-ut-2146-setting)

Check the cycle time (CT) setting. For voltage output, try a cycle time setting of around 1 to 5 seconds.

I'm using the Pt100 sensor. The PV input type IN parameters include PT1, PT2, and PT3, but which should I select?

(ns-faq-ut-2197-setting)

Select the type that is closest to the temperature range span that you are using.

Can I connect multiple instruments such as power controllers to a controller's analog current output?

(ns-faq-ut-2219-connect)

Yes, as long as the total input and wiring resistance of the connected instruments is 600 Ω or less.

Can I switch heating and cooling control?

(ns-faq-ut-2218-spec)

Yes, by using PID switching. Generally, you set heating control to reverse action and cooling control to direct action.

Can I use DO to transmit the SP number currently used on the UT to an external device?

(ns-faq-ut-2215-setting)

Yes. Assign an I relay to the DO parameter.

When installing the UTAdvanced series, what is the depth in millimeters from the surface of the panel?

(ns-faq-ut-2214-spec)

65 mm. For details, see the specifications of individual models.

Do you sell terminal covers?

(ns-faq-ut-2233-other)

Yes. Model: UTAP001 Supports: UT75A, UT55A, UT35A, UP55A, UT35A Model: UTAP002 Supports: UT52A, UT32A, UP32A, UM33A

Can I set it for 1 shot-only event display and contact output ON when an alarm activates?

(ns-faq-ut-2241-setting)

Not with parameter settings, but you can do this with a ladder program.

I'm using the UP35A and UP55A. Are PV and local event hysteresis values set with percentages?

(ns-faq-ut-2114-setting)

Yes, as a percentage of the PV input range span or output span.

Is the current transformer for heater current measurement that is used by UTAdvanced made by Yokogawa Electric?

(ns-faq-ut-2247-other)

It’s from U-RD. Please purchase them from our dealers.

Can I choose the color of the UTAdvanced terminal cover?

(ns-faq-ut-2246-spec)

No, it only comes in white.

Is it possible to connect multiple contact inputs to a single relay contact?

(ns-faq-ut-2243-connect)

No, use 1 contact per input. If you connect multiple inputs, when you turn OFF the UT, the impedance lowers and mis-operation can result.

I want to contol pressure and temperature with a single pattern using the UP and UT.

(ns-faq-ut-2213-spec)

You can do this with the pattern 2 transmission function. With the program pattern 2 transmission function, you can create and transmit program patterns at the same time, aside from program patterns used in control.

I want to output the results of calculations by ladder programs with 4-20 mA on the OUT2 output terminal, but nothing happens.

(ns-faq-ut-2209-program)

For analog output of calculated results to the OUT2 terminal, set the first two digits of the output selection type OT to 00, and the transmission output type 02RS to OUT1.

I want to control the temperature of 3 zones. How should I configure it?

(ns-faq-ut-2191-select)

Make the UP the parent station of two UT child stations and run the coordinated communication.

How to connect one UT with CC-Link communication to another downstream UT via RS485. The RS485 communication terminal of the UT with CC-Link communication is a 2-wire system, and that of the other UT is a 4-wire system.

(ns-faq-ut-2187-connect)

Q: I'm connecting a UT with CC-Link communication to another downstream UT via RS485 communication (Modbus master function). However, the RS485 communication terminal of the UT with CC-Link communication is a 2-wire system, and that of the other ...

What is the MR (manual reset) function?

(ns-faq-ut-2185-spec)

This function operates during P and PD control (when integral time I = OFF). The manual reset value is the output value when PV=SP.

Can I make it display the alarm type when an alarm occurs?

(ns-faq-ut-2184-spec)

Yes, by using the message function. This function assigns messages that have been registered in advance to the PV value display section, and displays them based on contact input ON/OFF states. Setting example: MG1 = 4353

I purchased a general type of controller. Can this control cooling?

(ns-faq-ut-2194-other)

Yes. Set the DR (direct/reverse operation switching) parameter of the PID item to DIR (direct operation).

I want to check the suffix code but I can't see the name plate. Is there another way to check it?

(ns-faq-ut-2195-setting)

When you turn ON the power, it shows up on the self-diagnostic screen that appears for a few seconds. The 3-digit number in the SP display section is the basic suffix code. (Ex.) For the UT55A-210-01-00, the number "210" appears.

I want to output the results of calculations by ladder programs with 4-20 mA on the RET output terminal, but nothing happens.

(ns-faq-ut-2208-program)

For analog output of calculated results to the RET terminal, set the transmission output type RTS to OUT1.

I want to output the results of calculations by ladder programs with 4-20 mA on the OUT output terminal, but nothing happens.

(ns-faq-ut-2207-program)

For analog output of calculated results to the OUT terminal, set the output selection type OT to 00.00 and the transmission output type 01RS to OUT1.

Can I apply a 24 VDC voltage to a contact input?

(ns-faq-ut-2198-spec)

You cannot apply an external voltage. You can connect either a no-voltage contact or a transistor contact.

After converting the controller manual output value to a number like the SP, can I finalize it with the ENT key?

(ns-faq-ut-2196-setting)

You can do this with the SET/ENT key system.Set MAN.T to ST.ET.

I set the UTA output to 10-segment linearizer approximation. Can the resulting output values be read via communication?

(ns-faq-ut-2177-spec)

Yes. The data will be -1500–31500. For the OUT terminal output, D7621(OUT_OUT)For the RET terminal output, D7624(RET_RET)For the OUT2 terminal output, D7623(OUT_OUT2L)

I'm controlling tank level ON/OFF. How should I wire and configure this?

(ns-faq-ut-2045-setting)

Please see the document below. It is an example of wiring and settings for tank level ON/OFF control using the Quick Setup function.Setup procedure, "UTAdvanced Quick Setting (Controlling Tank Level ON-OFF)" ...

When using contact input in ladder programs, is it necessary to turn OFF the contact function assigned to the setup parameters?

(ns-faq-ut-2039-program)

For contacts that have duplicated functions, it is necessary to turn them OFF on the setup parameter side.

My ladder program's comparison commands don't work properly.

(ns-faq-ut-2038-program)

The comparison commands of the digital indicating controllers (UT55A/UT52A/UT35A/UT32A) and program controllers (UP55A/UP35A) compare integers (rounded to the nearest decimal). If making comparisons that include decimals, first multiply the necessary...

A ladder program that I wrote doesn't work properly.

(ns-faq-ut-2037-program)

Check the operation of the program on the LL50A ladder program monitor.

My LL50A ladder program monitor does not start.

(ns-faq-ut-2036-program)

It won't start while the system data or parameter setting screen is displayed. Close those screens and restart.

Can you tell me how to wire and set up waste liquid pH control?

(ns-faq-ut-2041-setting)

Please see the document below. It is an example of wiring and settings for pH control using the Quick Setup function. Affected models: Standard UT52A/UT55A models (if there are 2 types of chemicals, select the heating/cooling model) Setup procedure,...

I'm controlling the temperature of an electric furnace using a thyristor. How should I wire and configure this?

(ns-faq-ut-2042-setting)

Please see the document below. It is an example of wiring and settings for controlling electric furnace temperature with a thyristor using the Quick Setup function.Setup procedure, "UTAdvanced Quick Setting (Controlling Furnace Temperature with ...

I'm controlling tank pressure. How should I wire and configure this?

(ns-faq-ut-2047-setting)

Please see the document below. It is an example of wiring and settings for tank pressure control using the Quick Setup function.Setup procedure, "UTAdvanced Quick Setting (Controlling Tank Pressure)" ...

I'm doing proportional control of tank level. How should I wire and configure this?

(ns-faq-ut-2046-setting)

Please see the document below. It is an example of wiring and settings for tank level proportional control using the Quick Setup function.Setup procedure, "UTAdvanced Quick Setting (Controlling Tank Level Proportion)" ...

Can you tell me how to wire and set up flow control using an inverter?

(ns-faq-ut-2044-setting)

Please see the document below. It is an example of wiring and settings to control flow with inverters using the Quick Setup function. Setup procedure, "UTAdvanced Quick Setting (Controlling Flow with Inverters)" ...

I'm controlling the temperature of an electric furnace using solid state relays. How should I wire and configure this?

(ns-faq-ut-2043-setting)

Please see the document below. It is an example of wiring and settings for controlling electric furnace temperature with solid state relays using the Quick Setup function.Setup procedure, "UTAdvanced Quick Setting (Controlling Furnace Temperatur...

Can I detect when the power is turned ON?

(ns-faq-ut-2035-program)

Yes. Use the PON flag on contact B.

Can I disable ladder programs that I used?

(ns-faq-ut-2034-setting)

On the LL50A, change the system data's ladder sequence function from USE to DON'T USE. If not using the LL50A, initialize the main unit.

Are communications with the FA-M3 possible?

(ns-faq-ut-2021-connect)

Yes. Use a UT link module for the FA-M3, and use PC link communications (RS-485) for the temperature controller communication protocol selection.

I set up a difference lower limit alarm, but no alarm is output.

(ns-faq-ut-2017-setting)

In the case of the difference lower limit alarm, the alarm setting is a negative value. For example, you need to set it to "-5°C."

Even when I turn ON the power, nothing appears on the UT display.

(ns-faq-ut-2013-setting)

The display is blank if you turn ON the power while a a dedicated LL50A cable is plugged into the maintenance port. Try removing the cable and restarting.

I can't find a parameter I want to set.

(ns-faq-ut-2001-setting)

Please see the parameter map for your specific model. UTAdvanced Series Parameter Maps and Lists

With the UTAdvanced ladder program function, can I use constants and other parameters in basic math functions?

(ns-faq-ut-2024-connect)

You can use the constant K and parameter P.

Can I use an RS-485 communication program written for the GREEN series (UT300/UT400/UT500/UP300/UP500/UM300) on a UT-Advanced series instrument?

(ns-faq-ut-2025-connect)

Program changes for reading PV and OUT, writing SP, and other basic parameters are not necessary. There are registers and relays that support the GREEN series. For details see the UTAdvanced series communication interface (RS-485, Ethernet) user'...

Can I rewrite constants used in ladder programs via communication?

(ns-faq-ut-2033-program)

Variable parameters P01-P10 can be rewritten via communication. You'll need to use the variable parameters as constants.

Can I use analog input in computations?

(ns-faq-ut-2032-program)

You can use it in ladder programs. On the UT55A, you can acquire up to 4 analog inputs.

I'm creating ladder programs on the LL50A. I want to set input computed results to R.SP, but I see lots of digits are displayed after the decimal point of the data on the ladder monitor. Can I reduce the number of digits displayed after the decimal point?

(ns-faq-ut-2031-program)

The DATA register uses a 4-byte floating point number, therefore it displays a lot of digits. Try using the K or P registers, since they handle 2-byte integer data.

When using the LL50A to create ladder programs, which ladder program edit mode should I use: "input ladder calculation," "output ladder calculation," or "user ladder"?

(ns-faq-ut-2030-program)

Generally you should create programs in "user ladder" mode. If needed, you can rewrite the input ladder and output ladder portions.

I'm controlling tank temperature. How should I wire and configure this?

(ns-faq-ut-2048-setting)

Please see the document below. It is an example of wiring and settings for tank temperature control using the Quick Setup function.Setup procedure, "UTAdvanced Quick Setting (Controlling Tank Temperature)" ...

I'm controlling furnace temperature with a motorized valve. How should I wire and configure this?

(ns-faq-ut-2049-setting)

Please see the document below. It is an example of wiring and settings for controlling furnace temperature with a motorized valve using the Quick Setup function.Setup procedure, "UTAdvanced Quick Setting (Controlling Furnace Temperature with a M...

Can I switch the temperature units between°C and °F?

(ns-faq-ut-2087-spec)

Per the metering law, in Japan you can only use °C. For customers who require overseas-specification products that can display Fahrenheit for embedding in a device exported outside of Japan, please contact your dealer or Yokogawa representative....

An error occurs with position-proportional type automatic valve position adjustment (V.AT).

(ns-faq-ut-2083-setting)

(1) Check the wiring: In MAN mode, set OUT display. Use the UP and DOWN keys to confirm operation of the control valve, and that the OUT value changes. The UP key operates the normal rotation side relay, and the DOWN key operates the reverse rotation...

There are differences between PV display values and the displays of other measuring instruments. Can I correct these?

(ns-faq-ut-2078-spec)

Yes, by using PV input bias (parameter BS).

B.OUT was displayed on the PV (measured value) display. What could be the cause of this?

(ns-faq-ut-2077-connect)

There might be breakage in a line. Check input wiring and sensors.If the input is restored, B.OUT will be cleared automatically.

Is a terminal cover included?

(ns-faq-ut-2088-select)

The UT52A, UT55A, UP55A, and UT75A come standard with terminal covers. For the UT32A, UT35A, UP35A, UP32A, and UM33A, specify the /CV option when order on or after May 31, 2015. They are also sold separately. Models: UTAP001UT75A, UT55A, UT35A, UP5...

Can I set the PV display to -100 with 20 mA input, and to 0 with 4 mA input?

(ns-faq-ut-2089-setting)

In this case, 20 mA is the minimum value of PV input, and 4 mA is the maximum. In the setup parameter PV menu, set RH=4.00 and RL=20.00 (the input range maximum and minimum values). For the PV input scale max, min, and decimal place, set SH=0, SL=-10...

What is the alarm standby function?

(ns-faq-ut-2111-spec)

Standby means that even when an alarm condition occurs it is ignored and the alarm stays off until the alarm condition ends. When the signal enters a non-alarm region, standby mode ends. Standby works in the following situation. When powering onWhen...

Does the alarm function work when operation is stopped (STOP)?

(ns-faq-ut-2110-spec)

By factory default setting, the alarm function still works when operation is stopped (STOP). You can change the setting by using the alarm mode parameter (operation parameter ALRM > AMD).

I'm replacing my GREEN series with the UTAdvanced series. Is there anything I need to be careful of in terms of wiring?

(ns-faq-ut-2108-connect)

The common for all GREEN series alarm relay outputs are shared. In the UTAdvanced series, each alarm relay output has its own common. If used the same way, use external wiring to connect common to common.

I'm doing temperature control. I did PID tuning, but the overshoots are still large and I want to suppress them. Is there a good way to do this?

(ns-faq-ut-2104-setting)

Try the overshoot suppression function (super function). Turn on SC: Operation parameter > TUNE > SC

I initialized the controller settings, but it doesn't perform control.

(ns-faq-ut-2074-setting)

The controller's operation may be set to START/MAN. Check the controller operation indicator on the front panel.

OVER was displayed on the PV (measured value) display. How will the control output operate in this case?

(ns-faq-ut-2070-spec)

If OVER is displayed, the PV value will be 105% of the measurement range. The control output will be the result that is calculated using this PV value. On a -OVER, the PV value is calculated as -5% of the measurement range.

Can I acquire trend data on the LL50A?

(ns-faq-ut-2053-soft)

You can display and acquire PV, SP, and OUT values as trend data. The trend data you acquire can be saved as a CSV file.

How can I display parameters that aren't displayed in the LL50A parameter setting software?

(ns-faq-ut-2052-soft)

If the LL50A's display setting is not PRO, some parameters won't display. Change the LL50A's display parameter as follows: Display > Parameter > Display level > Professional. The LL50A's display level must be set separately from that of the...

With the LL50A and UTAdvanced, can I perform RS-485 communications without a dedicated cable?

(ns-faq-ut-2051-connect)

Yes, if using a UTAdvanced series instrument with the RS-485 communication option. Set the RS-485 protocol on the main unit to 8 (MBRTU: Modbus RTU). The initial value is 8. Select RS-485 in the LL50A communication execution screen, and make the comm...

I'm controlling temperature with a heat exchanger. How should I wire and configure this?

(ns-faq-ut-2050-setting)

Please see the document below. It is an example of wiring and settings for controlling heat exchanger temperature using the Quick Setup function.Setup procedure, "UTAdvanced Quick Setting (Controlling Heat Exchange Temperature)" ...

Can I switch scaling using contact input?

(ns-faq-ut-2054-program)

Yes. Use the SCAL ladder program command.

What is the resolution of control output (4–20 mADC)?

(ns-faq-ut-2055-spec)

It is 1/20000. That is equivalent to approximately 14.5 bits.

How can I enter initial settings?

(ns-faq-ut-2064-setting)

Please see an operation guide. Controller operation guides are available for standard and detailed models. (Ex.: UT55A-000-01-00 is a standard model, and UT55A-NNN-01-AN is an detailed model). Note that you can refer to the user's manual for any deta...