Name: UP550 Program Controller (with "E", Enhanced) (Obsoleto)
Brand: Yokogawa
SKU: up550

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Program Controller UP55A

1/4 DIN sized sophisticated Program Controller features 5 powerful control modes and 30 program patterns. It comes with large PV display and LCD display for interactive setting and programming. The universal I/O, "SUPER" and "SUPER2" are also featured. Position proportional, heating/cooling model and RS-485 communication option are also available.

How many PV and time events can be set?

(ns-faq-green-9057-spec)

8 PV events and 16 time events. The number of outputs depends on the number of contacts on the model.

In UP550/UP750, the segment switched but the event did not turn OFF.

(ns-faq-green-9059-spec)

The event continues even if both PV and time events extend across 2 segments. If you don't want the event to occur, turn the event OFF at the corresponding segment.

Can I track PV events to local events?

(ns-faq-green-9058-spec)

Turn ON PVT in the setup parameters.

On the UP550 and UP750 program controller, can I do contact output during an operation parameter end?

(ns-faq-green-9123-setting)

DOn (n is 1–7) Set DOn output flag registration (within the CONF/DO setup parameter) to a pattern end signal. Pattern end signal (1 sec): 5157 Pattern end signal (3 sec): 5158 Pattern end signal (5 sec): 5159 * Time in parens. () is ON time ...

Can the lithium battery included with the UT750, UP750, UP550 be replaced?

(ns-faq-green-9122-other)

Not by the user. Repair support of these products have already ended, so please consider updating to the UTAdvanced series.

What are the proper uses for meter alarms, PV events, time events, and local events?

(ns-faq-green-9056-spec)

Meter alarms are for outputting alarms regardless of the operation mode. PV and time events are used only during program operation. Local events are action events used only during local operation.

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...

Can I control chemical dosing?

(ns-faq-green-9023-spec)

The auxiliary analog input function supports this with a ratio bias function.

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.

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...

Can I perform CC-Link communication?

(ns-faq-green-9035-connect)

Yes, by using the UTAdvanced series.

Can I use a heating/cooling type of 1 output?

(ns-faq-green-9069-spec)

Yes. The selection in the OT=0 to 3 setting in the setup parameters will be 1 output.

Can you tell me about the 15 VDC transmitter power supply function?

(ns-faq-green-9030-spec)

This function supplies power to 2-wire transmitters. It differs depending on the specifications of the transmitter, but the input accepts 100 Ω resistors. 100 Ω resistor (model: X010-100-2, sold seperately)

What is the delay timer in the alarm function?

(ns-faq-green-9074-term)

This is a function in which output occurs a specified time after an alarm set point is exceeded. If you clear the alarm point during operation of the timer, the timer is reset.

When should I use sensor power supplies (affected models: certain Green series instruments)?

(ns-faq-green-9008-spec)

These are used when 2-wire transmitters are used in the field. They provide cost savings since they do not need to be purchased separately. 24 V (21.6–28.0 VDC, 30 mA MAX) sensor power supplies can be specified with the following models: UT551,...

IN is not displayed the first time I turn the power ON.

(ns-faq-green-9013-spec)

Once input is set, IN is not displayed when you turn the power ON.

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'...

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. ...

Why don't PID items appear?

(ns-faq-green-9044-spec)

They don't appear with OT=3 ON/OFF control.

I'm trying to do AUTO/MAN via communication by writing 0/1 to DO206, but it's not working.

(ns-faq-green-9051-spec)

The DO206 items are used when in cascade control mode. For other modes, use DO201.

What settings can I use to get control output that is proportional to the input?

(ns-faq-green-9045-setting)

Set the following: P=100, I=D=OFF, DR=DIR (direct action), MR=0, SP=0.

Are there independent PIDs for heating and cooling?

(ns-faq-green-9070-spec)

Yes, if it is a heating/cooling type.

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.

What models are supported by the LL100/LL200?

(ns-faq-green-9088-soft)

The UT300/400/500/700 series, and the UP350/351/550/750. However, the LL200 custom computation function is only compatible with the UT750/UP750.

There is no control output.

(ns-faq-green-9085-spec)

Check whether MAN operation (manual) is selected for the output.

Why is there no output on the cooling side?

(ns-faq-green-9068-spec)

Check whether you can output manually. If not, check wether OL (cooling output limiter)=100%.

I can't switch the SP.

(ns-faq-green-9053-spec)

Check whether you are trying to switch it via communication, or whether it is the zone PID.

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 you give me details on the "Super2" function? (Affected products:Green series)

(ns-faq-green-9003-term)

Even when you expand the applicable range of the PID constant, the process states fluctuate, or response is unstable and hunting occurs (control responses fluctuate), this function is effective for stabilizing control and suppressing hunting. Normall...

Do you offer programs for communication using calculator link units or serial communication units?

(ns-faq-green-9036-program)

Sample programs and dedicated communication materials are available for MELSEC-A/MELSEC-Q.

What PID should be used for remote input?

(ns-faq-green-9025-spec)

With the UT300 series, only use 1PID. With UT400/500/700 models, the PID used just prior to switching to remote input is used. When using SP switching during remote input, only the PID switches.

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...

What items are accessible through a MELSEC connection?

(ns-faq-green-9034-spec)

Almost all items can be accessed, including PV reading, SP writing, and PID setting.

Output stops when the status is STOP.

(ns-faq-green-9031-spec)

When RET=1 or 2, the STOP has no effect.

Is there a MELSEC series with verified connectivity?

(ns-faq-green-9033-select)

Yes, MELSEC-A, MELSEC-Q, and MELSEC-FX.

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.

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.

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.

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 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 ...

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.

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).

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.

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...

Are contacts still good during malfunction?

(ns-faq-green-9081-spec)

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

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.

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.

Are current control output and transmission output isolated?

(ns-faq-green-9028-spec)

No.

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.

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...