Name: UT150 Temperature Controller (DISCONTINUED)
Brand: Yokogawa
SKU: ut150

Notice: This product was discontinued on Dec 29, 2017. See this replacement product:

Temperature Controller TC10

Compact 1/16 DIN sized versatile, general-purpose Temperature Controller features universal input, "SUPER" overshoot suppress function and dynamic auto tune as standard. Heating/cooling control, retransmission output, timer function and RS485 communication are optional features.

The UT150 Temperature Controller (1/16 DIN size) is a compact, versatile, general-purpose temperature controller. The UT150 has a dynamic auto tune and the "SUPER" overshoot suppress function as standard function. The heating/cooling control, retransmission output, timer function and communication function are available as optional features.

Small, space-saving 1/16 DIN package,
48 (W) x 48 (H) x 100 (D) (mm)
Large 4-digit LED display
IP65 splash-proof and dust-proof designed front panel
Universal input for Thermocouple, RTD and DC mV/V signals
Optional heating/cooling control capability
Optional retransmission output of measured value (PV)
Optional timer function
Optional heater burnout alarm and two alarm output relays
Standard universal power supply (100 V to 240 V AC) and optional 24 V AC/DC power supply
Optional RS485 communication function, MODBUS, PC-Link & Ladder protocols are supported
RoHS Compliant

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New Legislative Framework (NLF) Conforming Products

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Yokogawa Technical Report

UT100 Series Of Temperature Controllers

(rd-tr-r00029-007)

Is there a function for resetting alarms?

(ns-faq-green-9075-spec)

No. When an alarm occurs, it automatically recovers if values enter the normal range.

What are energize/de-energize alarms?

(ns-faq-green-9076-term)

For energize alarms, ON contact results when an alarm occurs. For de-energize alarms, OFF contact results when an alarm occurs. Note that OFF contact also results when the power fails.

What should I do when b.out is displayed?

(ns-faq-green-9080-spec)

The sensor wire on the input side might be broken or disconnected.

Are contacts still good during malfunction?

(ns-faq-green-9081-spec)

There are 2 types of output available, FAIL and "failure diagnosis."

Are the alarm setting values and hysteresis settings set with a percentage?

(ns-faq-green-9072-spec)

The are set with a real number. For temperature, it is set in degrees Celsius.

When I set up alarm values the parameters are initialized and I can't enter the settings.

(ns-faq-green-9071-setting)

Set them in the order, Alarm type → Alarm setting values. They will also not be displayed if you select an alarm for which no value is set.

When I change the SP and press SET/ENT, it restoring the original value.

(ns-faq-green-9052-spec)

Check that the operating parameters UPR and DNR are both OFF.

Is ON/OFF available with heating/cooling control?

(ns-faq-green-9066-setting)

Set both item P on the heating side and item Pc on the cooling side to 0.0.

What is the difference between + and - of the dead zone?

(ns-faq-green-9067-spec)

If you set + dead zone in the settings, you can get an area where no outputs occur. If you set - dead zone, you can get an area where both outputs occur at the same time.

There is no indication on the display in the GREEN series.

(ns-faq-green-9082-spec)

Check whether the wiring to the power supply terminal is correct. If only the LCD on the UT/UP700 does not display, a custom computation may be set for no display. If the PV display is also blank, this may indicate product failure. Please contact you...

Is control output available on a failure?

(ns-faq-green-9084-spec)

The output is 0% if there is a hardware failure such as an internal microprocessor.

With the UT100 series, can you set a limit on the control output value?

(ns-faq-green-9120-spec)

The UT100 series has no output limit function. This is supported in the UT32A or higher models.

Does the UT100 series come with a terminal cover?

(ns-faq-green-9121-spec)

No, but one is sold separately. UT130/UT150: L4000FB UT152: T9115YE UT155: T9115YD

Can I substitute a UT100 series control relay for an alarm relay?

(ns-faq-green-9124-spec)

The concept of hysteresis differs between control (On/Off control) and alarm relays. Hysteresis for control relays is described below. ...

Please provide information about PCB usage. (GREEN series)

(ns-faq-green-9125-spec)

PCBs (polychlorinated biphenyl) were banned from manufacturing and imports in 1975. The GREEN series began to be manufactured in 1997, and do not include PCBs.

On the UT100 series, it seems that there is no OUT display screen, but how can I check whether it is outputting anything?

(ns-faq-green-9119-spec)

There is an OUT indicator lamp on the front panel that is linked to the OUT output. It is off when the output is OFF (0%), and lit when ON (100%). For values between those, it blinks in accordance with the output value. The larger the value, the fast...

I want to perform cooling control with the UT100 series. Do I have to select cooling control output with a UT suffix code?

(ns-faq-green-9118-select)

If you have only one control output and you are only controlling cooling, select either -RN, -VN, or -AN. You can configure cooling control by changing parameter settings (set normal/reverse action switch DR to 1:Normal action)

I can't change parameter setting values (on the UT100 series).

(ns-faq-green-9116-spec)

Before starting on setup parameters, there is a parameter called LOC. 0: No key lock 1: May not change settings other than target values in the operation screen 2: May not change any parameters -1: If switching to the setup parameter setting sc...

Can I activate SSR (solid state relays) with the UT100 series?

(ns-faq-green-9115-1-spec)

In the specification code, select voltage pulse output (-V). ON voltage: 12-18 VDC OFF voltage: 0.1 VDC or less (load resistance 600 Ω or more, short-circuit current approx. 30 mA)

With the UT100 series, when using a thermocouple or RTD input, what happens to the control output if the input wiring disconnects?

(ns-faq-green-9117-spec)

The output becomes OFF (0%). However, with UT150/UT152/UT155 models that can set output upon STOP (EOT), the EOT setting is output.

Can you give me details on "Auto control"? (Affected products:UT100 series)

(ns-faq-green-9001-term)

If control is unstable after turning ON the power, this controller function automatically determines the optimal PID constant and restores control to a favorable state. Like auto tuning, this is a safe method that does not disturb the item being cont...

What registers are accessible in UT link's Auto mode?

(ns-faq-green-9049-spec)

It depends on the model. The following lists the readable registers by model. UT100 series: D0001–D0009 UT300 series: D0001–D0008 UT400/UT500/UT700 series: D0001–D0025 UP350: D0001–D0008 UP550/UP750: D0001–D0025 ...

How do I change the input type?

(ns-faq-green-9014-spec)

If you change the input type, parameters will be initialized. We do not recommend that you make changes while in operation.

Can I change setup parameters while the instrument is running?

(ns-faq-green-9015-spec)

Yes, but if you change some parameters, others will be initialized. We do not recommend that you make changes while in operation.

I can't set contact input register DI/contact output register DO.

(ns-faq-green-9016-spec)

These cannot be set when in Custom Computation mode.

What are direct and reverse action?

(ns-faq-green-9017-term)

Generally, reverse action means heating control and direct action means cooling control. When output is reverse action, output is ON during PVSP.

Do Green series controllers support Ethernet?

(ns-faq-green-9009-connect)

Yes. This requires an RS-485/Ethernet converter such as VJET. The controller must also have a communication option. Some models can be connected directly with the UTAdvanced series.

Can you give me details on Modbus communication? (Affected products: UT100 series, Green series)

(ns-faq-green-9006-term)

This is a protocol for communication with general purpose PCs and graphic panels. The UT130/UT150 can communicate with standard PCs. ...

Can you give me details on the "Super" function? (Affected products:Green series)

(ns-faq-green-9002-term)

This is an overshoot suppression function that uses fuzzy logic. It constantly monitors deviation, and if it detects the possibility of an overshoot, it automatically changes the set point to a somewhat lower temp value (sub set point SSP). When y...

Can you give me details on PC link communication? (Affected products: UT100 series, Green series)

(ns-faq-green-9004-term)

This is a protocol for communication with general purpose PCs and graphic panels, and also the FA-M3: You can communicate with Yokogawa PLC range free controller UT link modules and serial communication modules. Also, you can easily connect with PLCs...

Can you give me details on ladder communication? (Affected products: UT100 series, Green series)

(ns-faq-green-9005-term)

Ladder communication is a protocol for communication with PLCs. Aside from Yokogawa PLCs, you can communicate with Mitsubishi MELSEC-Q/A series calculator link units (using A1SJ71UC24-R4 or A1SJ71C24-R4). ...

Can I write the PV value via communication?

(ns-faq-green-9048-spec)

The PV value can be written by using the ladder sequence function of UTAdvanced series. However, when communication is interrupted, the PV value is retained.

There is no current input range.

(ns-faq-green-9018-spec)

Use a resistor to input current as voltage. A resistor is available: X010-250-2 (250 Ω).

Is there a function for determining the PID?

(ns-faq-green-9039-spec)

Yes, the Auto tuning function.

Auto-tuning parameters (AT) don't appear.

(ns-faq-green-9043-spec)

If the operation mode is STOP or MAN, they are not displayed.

What is the write limit of 100,000 times?

(ns-faq-green-9046-spec)

This is a limit on the number of times you can write to the element used (EEP-ROM).

What protocol is used when communicating with the Mitsubishi Electric's sequencer?

(ns-faq-green-9037-connect)

Ladder communication is used when communicating with the Computer link unit/Serial communication unit. Modbus/RTU is used for communication with the Modbus communication module.