YOKOGAWA UT150L User manual

2-9-32, Naka-cho Musashino-shi, Tokyo 180-8750 Japan
Phone: [phone] Facsimile: [phone]
http://www.yokogawa.com/ns/ut/im/
You can download the latest manuals from the following website:
User’s
Manual
1
• Authorised Representative in the EEA
Yokogawa Europe BV. (Address: Euroweg 2 , 3825 HD Amersfoort, The Netherlands) is
the Authorised Representative of Yokogawa Electric Corporation for this Product in the
EEA.
• Printed Manuals
Model UT150L Limit Controller (IM 05C01E22-01E)
Model UT150L Limit Controller Communication Functions (IM 05C01E22-10E)
• General Specications
Model UT150L Limit Controller (GS 05C01E22-01E)
Model UT150L
Limit Controller
IM 05C01E22-01E
1st Edition Oct. 2000 (YK)
7th Edition Mar. 2016 (YK)
Contents
1. Notice ....................................................................... 1
2. What is on the Front Panel?..................................... 1
3. Installing the Controller ............................................ 1
4. Panel Cutout Dimensions and External
Dimensions .............................................................. 1
5. Wiring ....................................................................... 2
6. HardwareSpecications .......................................... 2
7. Key Operations (Parameter Settings) ...................... 2
8. Limit Control Function .............................................. 4
9. Troubleshooting........................................................ 4
Revision Record
IM 05C01E22-01E 1st Edition: Oct. ’00
2nd Edition: Feb. ’01
3rd Edition: Mar. ’01
4th Edition: Jun. ’04
5th Edition: Sep. ’04
6th Edition: Apr. ’05
7th Edition: Mar. ’16
Please read through this user's manual to ensure correct usage of the controller and keep it handy for quick reference.
■Checking Package Contents
Beforeusingtheproduct,checkthatitsmodel&sufxcodesareasyouordered.
Model and Sufx Codes
Model Sufx code Description
UT150L Limit Controller (1/16 DIN size)
Control
output
−R Relay output (time-proportional PID or on/off control)
NAlways N
Option
/AL
/EX
/RET
/RS
Alarm outputs (2 points)
Digital input (1 point)
PV retransmission output in 4 to 20mA
Communication function
Check the package contents against the list below.
• Limit controller ………………………… 1
• Mounting bracket ………… 1 for UT150L
• User’s manual (IM 05C01E22-01E) … 1
1. Notice
The following safety symbol is used both on the product and in this user’s manual.
WARNING
This symbol stands for “Handle with Care.” When displayed on the product, the
operator should refer to the corresponding explanation given in the user’s manual in
order to avoid injury or death of personnel and/or damage to the product. In the manual
the symbol is accompanied by an explanation of the special care that is required to
avoid shock or other dangers that may result in injury or loss of life.
The following symbols are used in this manual only.
CAUTION
Indicates that operating the hardware or software in a particular manner may lead to
damage or result in system failure.
IMPORTANT
Draws attention to information that is essential for understanding the operation and/or
features of the product.
■ Exemption from Responsibility
Make sure that all of the precautions are strictly adhered to. Yokogawa Electric Corporation assumes
no liability for any damage resulting from use of the instrument in contradiction to the precautions.
Also, Yokogawa Electric Corporation assumes no liability to any party for any loss or damage, direct
or indirect, caused by the use or any unpredictable defect of the instrument.
2. What is on the Front Panel ?
a.
b.
h.
g.
c.
e.
d.
f.
i.
Name Function
a. PV display (red) Indicates PV (measured value) and character information such as parameter
codes and error codes.
b. SP display (green) Indicates SP (target setpoint) and parameter values.
c. EXCEEDED lamp (green) Lit while PV is exceeding SP value.
d. Alarm 1 (AL1) lamp (red) Lit when alarm 1 is activated.
e. Alarm 2 (AL2) lamp (red) Lit when alarm 2 is activated.
f. Output (OUT) display lamp
•LitwhenPVexceedsSPvalue.Thislampdoesnotgooutuntil“conrming
operation” is done (see Page 4).
Note: Output relay contact is off when OUT lamp lights.
g.
Reset/Data change (up) key
• Pressing the key for 1 second or longer in “operating display or ”
putsoutOutput(OUT)displaylamp.(Thisoperationisthe“conrming
operation”.)
•Pressingthekeyfor1secondorlongerin“conrmationdisplay”resets
“exceeded status (PV exceeds SP value)”, “duration time” or max./min. PV
value those UT150L observed before.
• Pressing the key increases the data value.
Holding down the key will gradually increase the speed of change.
h. Data change (down) key • Pressing the key decreases the data value.
Holding down the key will gradually increase the speed of change.
i.
SET/ENT key (data registering
key)
(Indicated as simply the key
hereafter.)
• Registers the data value changed using the data change keys.
• Switches between parameter setting displays sequentially.
• Pressing the key for 3 seconds or longer in the operating display retrieves
the operating parameter setting display.
• Pressing the key for 3 seconds or longer in either an operating or setup
parameter setting display transfers back to the operating display .
3. Installing the Controller
WARNING
●To prevent electric shock, the source of power to the controller must be turned off
when mounting the controller on to a panel.
●Since the controller is not of explosion-proof type, do not use this controller in
combustible or explosive gas atmospheres.
CAUTION
To install the controller, select a location where:
1. No-one may accidentally touch the terminals;
2. Mechanical vibrations are minimal;
3. Corrosive gas is minimal;
4. The temperature can be maintained at about 23°C
withminimaluctuation;
5. There is no direct heat radiation;
6. There are no resulting magnetic disturbances;
7. The terminal board (reference junction
compensation element, etc.) is protected from wind;
8. There is no splashing of water; and
9. Therearenoammablematerials.
●Mount the controller at an angle
within 30° from horizontal with
the screen facing upward. Do not
mount it facing downward.
30°
(MAX)
Never place the controller directly on ammable items.
Ifthecontrollerhastobeinstalledclosetoammableitemsor
equipment, be sure to enclose the controller in shielding panels
positioned at least 150mm away from each side. These panels
should be made of either 1.43mm thick metal-plated steel plates
or 1.6mm thick uncoated steel plates.
150mm
150mm
150mm150mm
■Mounting the Controller
1. Affix the bracket over the back
end of the controller.
2. Push the bracket to the panel,
and then secure the bracket
into position.
Panel
BracketUT150L
[How to remove the bracket]
To move the bracket, push down the center of the upper and lower parts of the controller softly.
The bracket is released from the latch.
4. Panel Cutout Dimensions and External Dimensions
1. General Mounting 2. Side-by-side Close Mounting
(Splash-proof construction is unavailable) Unit: mm
max. 61
Panel thickness
max. 47.8 max. 44.8
max. 44.8
10012
48
48
1 to 10
min. 70
min. 70
45+0.6
0
45+0.6
0
25
25
[(N –1)×48+45] +0.6
0
+0.6
0
45
N is the number of controllers.
If N>
5, then measure the actual length.

IM 05C01E22-01E 7th Edition Mar. 14, 2016-00
2
5. Wiring
WARNING
1. Before you start wiring, turn off the power source and use a tester to check that the controller and
cables are not receiving any power in order to prevent electric shock.
2. For safety, be sure to install a circuit breaker switch (of 5A and 100V AC or 220V AC, and that
conforms to IEC60947) near the controller so as to be operated easily, and clearly indicate that
the device is used to de-energize the controller.
3. Wiring should be carried out by personnel with appropriate electrical knowledge and experience.
4. For the wiring cable, the temperature rating is 60 °C or more.
CAUTION
1. Use a single-phase power source. If the source has a lot of noise, use an isolation transformer for the
primary side and a line lter (we recommend TDK’s ZAC2205-00U product) for the secondary side.
When this noise-prevention measure is taken, keep the primary and secondary power cables well
apart. Since the controller has no fuse, be sure to install a circuit breaker switch (of 5A and 100V AC
or 220V AC, and that conforms to IEC standards) and clearly indicate that the device is used to de-
energize the controller.
2. For thermocouple input, use shielded compensating lead wires. For RTD input, use shielded
wires which have low resistance and no resistance difference between the 3 wires. See the table
given later for the specications of the cables and terminals and the recommended products.
3. The control output relay cannot be replaced even though it has a limited service life (100,000 relay
contacts for the resistance load). Thus, an auxiliary relay should be used so that the load can be
turned on and off.
4. When using an inductive load (L) such as an auxiliary relay and solenoid valve, be sure to insert
a CR lter (for AC) or diode (for DC) in parallel as a spark-rejecting surge suppressor to prevent
malfunctions or damage to the relay.
5. When there is the possibility of being struck by external lightning surge, use the arrester to
protect the instrument.
IMPORTANT
Always x a terminal cover bracket to the UT150L limit controller before wiring if an optional anti-
electric-shock terminal cover (part number: L4000FB) is used.
●Cable Specifications and Recommended Products
Power supply and relay contact output 600V vinyl insulated wire/cable, JIS C3307, 0.9 to 2.0mm2
Thermocouple input Shielded compensating lead wire, JIS C1610
RTD input Shielded wire (3-wire), UL2482 (Hitachi cable)
Other signals Shielded wire
●Recommended Terminals
Use M3.5 screw-compatible crimp-on terminals with an insulating sleeve, as shown below.
7mm or less
7mm or less
ø 3.7mm ø 3.7mm
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
TC Input
DC mV or V Input
RTD Input
Measured Value (PV) Input
7
8
7
8
6
7
8
+
–
+
–
B
b
A
External Contact Inputs
4
5
RESET
COM
RS-485
3
4
5
ALM2
ALM1
COM
RSB(+)
RSA(–)
SG
Relay Contact Output
Control Output
Alarm Outputs
When “/AL” is specifiedWhen “/RET”
is specified
Universal input-selectable input type
When “/RS” is specified
(Note)
When “/EX” is specified
(Note)
Retransmission Output
11
12
13
14
15
+
–
1
2
NO
COM
(Note
):/RS and /EX cannot be specitied
at the same time.
Power Supply
9L
N
10
100-240V AC
■UT150L Terminal Arrangement
7. Key Operations (Parameter Settings)
CAUTION
At power-on, the controller displays the operating display , but if the input range
setting remains OFF, then “IN” appears. In this case, press the key to display the
input range code you want to use, then press the key to register it.
(1) You can move between parameter setting displays using the
key.
(2) To change the set value,
(i)
Change the display value with the or key(theperiodashes).
(ii) Press the key to register the setting.
(3) At the operating display  or  , pressing the key for at least 3 seconds retrieves the operating parameter
setting display.
(4) At the operating parameter setting display, pressing the
key for at least 3 seconds transfers back to the
operating display  . Registering the key-lock parameter
LOC to “–1” retrieves the setup parameter setting display.
(5) At the setup parameter setting display, pressing the key for
at least 3 seconds transfers back to the operating display  .
●UT150L Measured Input Range Codes List
Input type Range (°C)
Range
code (°C)
Range (°F)
Range
code (°F)
For example, to select
thermocouple type E (°F),
set the range code to 37.
Unspecied OFF
Thermocouple
K
–270 to 1370°C 1 –300 to 2500°F 31
0.0 to 600.0 °C 2 32.0 to 999.9°F 32
0.0 to 400.0 °C 3 32.0 to 750.0°F 33
–199.9 to 200.0°C 4 –300 to 400°F 34
J –199.9 to 999.9°C 5 –300 to 2100°F 35
T –199.9 to 400.0°C 6 –300 to 750°F 36
E –199.9 to 999.9°C 7 –300 to 1800°F 37
R 0 to 1700°C 8 32 to 3100°F 38
S 0 to 1700°C 9 32 to 3100°F 39
B 0 to 1800°C 10 32 to 3200°F 40
N –200 to 1300°C 11 –300 to 2400°F 41
L –199.9 to 900.0°C 12 –300 to 1600°F 42
U –199.9 to 400.0°C 13 –300 to 750°F 43
Platinel 2 0 to 1390°C 14 32 to 2500°F 44
RTD
Pt100
–199.9 to 850.0°C 15 –199.9 to 999.9°F 45
0.0 to 400.0 °C 16 32.0 to 750.0°F 46
–199.9 to 200.0°C 17 –300 to 400°F 47
–19.9 to 99.9 °C 18 No range —
JPt100 –199.9 to 500.0°C 19 –199.9 to 999.9°F 48
DC voltage
0 to 100mV
0.0 to 100.0 User-scalable
20
0 to 5V 21
1 to 5V 22
0 to 10V 23
WARNING
To prevent electric shock, the controller should be mounted on the panel so that you do not
accidentally touch the terminals when power is being applied.
CAUTION
The controller is shipped with the parameters set at the factory-set defaults. Check the default
values against the “Parameter List” in the following page, and change the parameter settings that
need to be changed.
The following section (on Page 3) explains how to set and register parameter values.
The procedure for changing SP (target setpoint) can be found on “Changing Setpoint (SP)”. You can
set the other parameters in the same way.
Therearenosetupdisplaysforparametersspecictofunctions,suchastheoptionalalarmoutput
functions, if they were not selected at ordering.
The setting of some parameters (such as the Alarm 1 type parameter AL1) determines whether the
other parameters (Alarm 1 setpoint: A1) are displayed or not.
The owchart will help you understand how this works.
Note: If you cannot change
the parameter setting
value, check the
key-lock parameter
(LOC) setting.
When “In” appears, press the
key to display the input range code
you want to use, then press the
key to register it. After this
operation, the controller shows the
operating display .
CAUTION
Measured Value (PV) Input
●Input: 1 point
●Input type: Universal; can be selected by software
●Input accuracy (at 23±2°C ambient temperature)
●Thermocouple:±2°C±1digit
However,
• ±4°C for thermocouple input –270 to –100°C
• ±3°C for thermocouple input –100 to 0°C
• ±5°C for type R and S (±9°C for 0 to 500°C)
• ±9°C for type B (accuracy is not guaranteed for 0 to 400°C)
●RTD: ±1°C±1digit
●Voltage (mV, V): ±0.3%±1digit
●Sampling period for measured value input: 500ms
●Burnout detection: Functions for thermocouple or RTD input
(burnout upscale only; cannot be switched off)
●
Inputresistance:1MΩorgreaterforthermocoupleorDCmVinput.
Approx.1MΩforDCVinput
●Maximum allowable signal source resistance :
 250ΩforthermocoupleorDCmVinput
 2kΩforDCVinput
●MaximumallowablewiringresistanceforRTDinput:10Ω/wire
(The resistance values of three wires must be the same.)
●Allowable input voltage:
±10V DC for thermocouple or DC mV input
±20V DC for DC V input
●Noise rejection ratio:
Normal mode noise: Min. 40dB (50/60Hz)
Common mode noise: Min. 120dB
(Min. 90dB for DC V input)
●Error of reference junction compensation:
±1.5°C (at 15-35°C), ±2.0°C (at 0-50°C)
The reference junction compensation cannot be switched off.
●Applicable standards: Thermocouple and resistance
temperature detector JIS/IEC/DIN (ITS90)
Control Output
●Output: 1 point
●Output type:
Relay contact output
Contact capacity: 3A at 240V AC or 3A at 30V DC (with
resistance load)
Note: The control output relay cannot be replaced by users.
Alarm Functions
■Alarm Functions (Option Code /AL or /HBA)
●Alarm types: 22 types (waiting action can be set by software):
PV high limit, PV low limit, Deviation high limit, Deviation low
limit, Deenergized on deviation high limit, De-energized on
deviation low limit, Deviation high and low limits, Deviation
within high and low limits, De-energized on PV high limit, De-
energized on PV low limit, Fault diagnosis output, FAIL output
●Alarm output: 2 relay contacts
Relay contact capacity: 1A at 240V AC or 1A at 30V DC (with
resistance load)
Note: The alarm output relays cannot be replaced by users.
Retransmission Output
The retransmission output is provided only when the /RET option
isspecied.
●Output signal: Measured value in 4-20mA DC
●Maximumloadresistance:600Ω
●
Output accuracy: ±0.3% of span (at 23±2°C ambient temperature)
6. Hardware Specications
Contact Inputs
Thecontactinputsareprovidedonlywhenthe/EXoptionisspecied.
●Function: Resetting “exceeded status”
●Input: 1 point
●Input type: Non-voltage contact or transistor contact input
●Contact capacity: At least 12V/10mA
●
On/offjudgment:Onstatefor1kΩorless;offstatefor20kΩorgreater
Communication Function
The communication function is provided only when the /RS
optionisspecied.(Fordetails,readtheuser’smanualofthe
communication functions IM 05C01E22-10E.)
■Communication Protocol
●Personal computer link: Used for communication with a
personal computer, or UT link module of the FA-M3 controller
(from Yokogawa Electric Corporation).
●Ladder communication: Used for communication with a ladder
communication module of the FA-M3, or a programmable
controller of other manufacturers.
●MODBUS communication: Used for communication with
equipment featuring the MODBUS protocol.
■Communication Interface
●Applicable standards: Complies with EIA RS-485
●
Number of controllers that can be connected: Up to 31
●Maximum communication distance: 1,200m
●Communication method: Two-wire half-duplex, start-stop
synchronization, non-procedural
●Baud rate: 2400, 4800, or 9600 bps
Safety and EMC Standards
WARNING
This instrument is classied into the Measurement
Category No.1 in the following table.
Do not use for the measurements in locations
where the categories are No.2, No.3, and No.4.
Internal Wiring
Outlet
Entrance
Cable
IV III
O(I)
TII
● Safety: Compliant with IEC/EN 61010-1 (CE), IEC/EN 61010-2-201
(CE), IEC/EN 61010-2-030 (CE), approved by CAN/CSA C22.2 No.
61010-1 (CSA), approved by UL 61010-1.
Installation category: II
Pollution degree: 2
Measurement category: I (CAT I) (UL, CSA)
O (Other) (CE)
Rated measurement input voltage: Max. 10 V DC
Rated transient overvoltage: 1500 V (*)
* This is a reference safety standard value for measurement
category I of CSA/UL 61010-1, and for measurement
category O of IEC/EN 61010-2-030. This value is not
necessarily a guarantee of instrument performance.
●EMC standards: Complies with EN 61326.
The instrument continues to operate at a measuring accuracy of
within ±20% of the range during tests.
●KC marking: Electromagnetic wave interference prevention
standard, electromagnetic wave protection standard compliance
No.
IEC/EN/CSA/
UL 61010-1
EN 61010-
2-030 Description
No.1 Measurement
Category I O (Other)
For measurements performed on circuits not
directly connected to MAINS.
No.2 Measurement
Category II
Measurement
Category II
For measurements performed on circuits
directly connected to the low voltage
installation.
No.3 Measurement
Category III
Measurement
Category III
For measurements performed in the
building installation.
No.4 Measurement
Category IV
Measurement
Category IV
For measurements performed at the source
of the low-voltage installation.
Power Supply and Isolation
CUATION
Caution to comply with EMC Standards: When operating
this instrument by external power supply, use an
independent power unit conforming to CE marking.
■Power Supply
Power
supply
Voltage Rated at 100-240VAC (±10%)
Frequency 50 or 60Hz
Maximum power
consumption 8VA max. (4W max.)
Memory Non-volatile memory
Withstanding
voltage
Between primary
terminals
and secondary terminals
(See Note 1.)
CE: 3000 V AC for 1 minute (Between
relay terminals and secondary
terminals 1500 V AC for 1 minute)
UL/CSA: 1500 V AC for 1 minute
(Note 2)
Insulation
resistance
Between primary
terminals
and secondary terminals
(See Note 1.)
20MΩormoreat500VDC
Note 1: The primary terminals are the power supply termina
ls and
relay output terminals.
The second
ary terminals are the analog input and output
terminals, the voltage pulse output terminals, and the
contact input terminals.
Note2:Thewithstandingvoltageisspeciedas2300VACper
minute to provide a margin of safety.
■Isolation
The bold lines below indicate reinforced insulation, and the
broken line indicates functional insulation.
In case of CE conformity, alternate long and short dash line
indicates basic insulation.
•
Power supply
terminals
(100-240V AC)
•Control output
terminals
(relay contacts)
•Alarm output
terminals
(2 relay contacts)
•
Control output terminals:
Voltage pulse
•
RS-485 terminals for /RS
•
Measured value input
terminals
•
2 input terminal for /EX
•Internal circuit
Reinforced insulation
Functional insulation
In case of CE conformity,
alternate long and short dash
line indicates basic insulation.
Note: Neither the measured value input terminals nor input terminals
for the /EX option are isolated from the internal circuit.
Construction, Mounting, and Wiring
● Construction: Dust-proof and drip-proof front panel conforming to IP65.
For side-by-side close installation the controller loses its
dustproof and drip-proof protection.
●Casing: ABS resin and polycarbonate
●Case color: Black
●Mounting: Flush panel mounting
●Terminals: Screw terminals
Environmental Conditions
■Normal Operating Conditions
●Warm-up time: At least 30 minutes
●
Ambient temperature:0-50°C (0-40°C when mounted side-by-side)
●Rate of change of temperature: 10°C/h or less
●Ambient humidity: 20-90% RH (no condensation allowed)
●Magneticeld:400A/morless
●Continuous vibrations of 5 to 14Hz: Amplitude of 1.2mm or less
●Continuous vibrations of 14 to 150Hz: 4.9m/s2(0.5G) or less
●Short-period vibrations: 14.7m/s2(1.5G) for 15 seconds or less
●Shock: 98m/s2(10G) for 11 milliseconds or less
●Mounting angle: Upward incline of up to 30 degrees; downward
incline is not allowed.
●Altitude: 2000m or less above sea level
■ Maximum Effects from Operating Conditions
(1) Temperature effects
●Thermocouple,DCmVandDCVinput:±2μV/°Cor±0.02%of
F.S./°C, whichever is the larger
●Resistance temperature detector: ±0.05°C/°C
●Analog output: ±0.05% of F.S./°C
(2)Effectfromuctuationofpowersupplyvoltage(withinrated
voltage range)
●
Analoginput:±0.2μV/Vor±0.002%ofF.S./V,whicheveristhelarger
●Analog output: ±0.05% of F.S./V
■Transportation and Storage Conditions
●Temperature: –25 to 70°C
●Humidity: 5 to 95% RH (no condensation allowed)
●Shock: Package drop height 90cm (when packed in the
dedicated package)
CAUTION
Do not use
unassigned terminals
as relay terminals.
CAUTION
Safety Precaution in IEC61010-1
Since the insulation provided to between relay
output terminal and secondary terminal is
Reinforced insulation, the connected circuit
should use a safety voltage circuit to comply with
IEC61010-1. (Refer to the drawing below.)
This product
Basic
insulation
Secondary-
side
A safety
voltage circuit

IM 05C01E22-01E 7th Edition Mar. 14, 2016-00
3
■Changing Setpoint (SP)
Step 1:
Confirm that the controller
shows the operating display
or during normal
operation.
Step 2:
To enter the operating
parameter setting display,
press the key for at least
3 seconds.
The display for the setpoint
(SP) appears.
Step 3:
Press the or key
to change the current SP
value to the required value.
In this example, SP is
changed to 200°C.
Press for at least 3 seconds.
The period flashes while the value is being changed.
Step 4:
Press the key once to
register the setting. SP is
now changed. Another press
of the key calls up the
Alarm-1 setpoint display.
To return to the operating
display , press the key
for at least 3 seconds. The period goes out.
■Parameter Lists Numbers in ( ) are the parmeter setpoints that apply when the commu-
nication function is used. Ex. OFF(0), ON(1)
(1) Operating Parameters: Parameters changed rather frequently during operation.
Code Name Setting range and unit Default
User setting
SP
Setpoint for limit
alarm
Minimum value (SPL) to maximum vlalue (SPH).
Unit: °C/°F
A1
Alarm 1
setpoint
■ PValarmUnit:°C/°F
Setting range: minimum value to maximum value
of measured input range (scale)
■ DeviationalarmUnit:°C/°F
Setting range: –100 to 100% of the measured
input range (scale) span
Max. value of
measured input range
(scale) (PV alarm)
A2
Alarm 2
setpoint
Min. value of
measured input range
(sacle) (PV alarm)
HYS
Relay hysteresis for
control output
0°C/°F to the temperature that corresponds to 100%
of the measured input range (scale) span
0.5% of measured
input range (scale)
span
FL PVinputlter OFF(0), 1 to 120 seconds OFF(0)
BS
PV input bias
–100 to 100% of measured input range (scale) span 0% of measured
input range (scale)
span
LOC
Key lock
0: No key lock
1: Prevents operations from being changed except
for the changing of SP
2: Prevents all parameter changing operations
–1: Set "-1" to enter the setup parameter setting
display.
But if "LOC=1 or 2" is already set, the
parameter value can not be changed by setting
"LOC=-1" only. To change the parameter value,
set"LOC=0"atrst(fordisablingkeylock),then
set "LOC=-1" once again.
0
(2) Setup Parameters: Parameters rarely changed in normal use after once having been set.
Code Name Setting range and unit Default
User setting
IN
Measured input type
1 to 23, and 31 to 48 (See input range code list on
Page 2.)
OFF(0): No input
(Ifnoinputtypeisspeciedatthetimeofordering,
you must set the input type.)
OFF(0), or the
input range code
speciedwithorder
DP
Decimal point
position of measured
input
(Displayed at voltage input)
0: No decimal place (nnnn)
1: One decimal place (nnn.n)
2: Two decimal places (nn.nn)
3: Three decimal places (n.nnn)
1
RH
Maximum value
of measured input
range (scale)
(Displayed at voltage input)
(RL + 1) to 9999
Unit: %
100.0
RL
Minimum value of
measured input
range (scale)
(Displayed at voltage input)
–1999 to (RH –1)
Unit: %
0.0
SPH
Maximum value of
setpoint range
(SPL+1°C) to the maximum value of the measured
input range (scale); Unit: °C/°F
Maximum value
of measured input
range (scale)
SPL
Minimum value of
setpoint range
Minimum value of measured input range (scale) to
(SPH –1°C) Unit: °C/°F
Minimum value of
measured input
range (scale)
AL1
Alarm 1 type OFF(0) or a value from 1 to 22 (see the table of
alarm function list)
1
(PV high limit alarm)
AL2 Alarm 2 type OFF(0) or a value from 1 to 22 (see the table of
alarm function list)
2
(PV low limit alarm)
HY1 Alarm 1 hysteresis
0 to 100% of measured input range (scale) span
Unit: °C/°F
0.5% of measured
input range (scale)
span
HY2 Alarm 2 hysteresis
HI.LO Limit control type HI(0): High limit
LO(1): Low limit HI(0)
OP.SL
Operating display 
selection
0: PV and SP
1: Only SP (No PV display) 0
R.MD
Restart mode
0: Limit output is ON at power on in any cases.
1: Limit output is OFF at power ON when PV
doesn't exceed SP.
0
DIS
The way of
conrmingoperation
KEY(0): By key operation
DI(1): By digital input KEY(0)
PSL
Protocol selection
0: PC-link communication
1: PC-link communication with sum check
2: Ladder communication
3: MODBUS in ASCII mode
4: MODBUS in RTU mode
0
ADR
Controller address
1 to 99
However, the number of controllers that can be
connected per host device is 31 at the maximum.
1
BPS
Baud rate
2.4(0): 2400 bps
4.8(1): 4800 bps
9.6(2): 9600 bps
9.6(2)
PRI
Parity
NON(0): Disabled
EVN(1): Even parity
ODD(2): Odd parity
EVN(1)
STP Stop bit 1 or 2 bits 1 bit
DLN
Data length
7 or 8 bits
• 8 bits when ladder, MODBUS (RTU)
• 7 bits when MODBUS (ASCII)
8 bits
is displayed
?
When measured input range code has been already set, the
operating display 1 shown below appears.
YesNo
Measured input value (PV)
Target setpoint (SP)
Blank (no PV display)
Target setpoint (SP)
(time)
Duration time
(high) or (low)
Maximum or minimum PV value
Operating display 1 *
Operating display 2 *
Press the key
to move between items.
Press the key
to do “Confirming
operation”
Press the key
to reset the valve
(Duration time /Max.
or Min. PV value)
Press the
key
to move
between items.
Press the
key
for at least
3 seconds.
Press the
key for
at least 3 seconds.
(To operating
display 1 )
Press the
key for
at least 3 seconds.
(To operating
display 1 )
Note: If no key is pressed for a
period of two minutes or more
while in the operating or setup
parameter setting display, the
controller automatically returns
to the operating display 1 .
(Note)
(Note)
•
Displayed only for the /AL option.
• Not displayed when AL1,
AL2 = OFF
• Not displayed when AL1,
AL2 = 21 or 22
SP value can be changed as this “SP”
setting display.
LOC=
When
–1
When LOC=–1 ,
transfers to the
setup parameter
setting display
Press the
key
to move
between items.
Displayed when DC voltage
input range code is set
Displayed for the /RS option
Displayed for the /AL option
Displayed only for the
/EX option
When “In” appears, press the
key to display the measured input
range code you want to use, then
press the key to register it.
After this operation, the controller
shows the operating display 1 .
Confirmation display 1
Confirmation display 2
SP value cannot be
changed at operating display
1 , 2
CAUTION
Set “-1” to enter the setup parameter setting
display. But if “LOC=1 or 2” is already set, the
parameter value can not be changed by setting
“LOC=-1” only. To change the parameter value,
set “LOC=0” at first (for disabling keylock),
then set “LOC=-1” once again.
*Operating displays 1 and 2 are changeable.
(by setting the parameter “OP.SL”)
Power ON
A
Operating parameter setting display
Setup parameter setting display
SP
HYS
A1
A2
FL
BS
LOC
SPH
SPL
DP
RH
RL
IN
AL1
AL2
HY1
HY2
DIS
HI.LO
OP.SL
R.MD
PSL
ADR
BPS
PRI
STP
DLN
CAUTION
A
■Alarm Function List
Alarm type
Action
“Opn” and “Cls” indicate that the relay
contact is opened and closed; “(on)” and
“(off)” indicate that the lamp is on and off;
and white triangles indicate temperature
control setpoints.
Alarm
type code
Alarm type
Action
“Opn” and “Cls” indicate that the relay
contact is opened and closed; “(on)” and
“(off)” indicate that the lamp is on and off;
and white triangles indicate temperature
control setpoints.
Alarm
type code
Closed
contact
during
alarm
Open
contact
during
alarm
Closed
contact
during
alarm
Open
contact
during
alarm
No alarm OFF
De-
energized
on
deviation
low limit
Hysteresis
Temperature setpoint
Deviation setting
Measured value
Opn (on)
Cls (off)
6
16
(See
note.)
PV
high limit
Hysteresis
Alarm setting Measured value
Opn (off)
Cls (on)
1
11
(See
note.)
PV
low limit
Hysteresis
Alarm setting Measured value
Opn (off)
Cls (on)
2
12
(See
note.)
Deviation
high and
low limits
Hysteresis Hysteresis
Temperature setpoint
Deviation setting
Measured value
Cls
(on)
Opn
(off)
Cls
(on)
7
17
(See
note.)
Deviation
high limit
Opn (off)
Hysteresis
Cls (on)
Measured value
Temperature setpoint
Deviation setting
3
13
(See
note.)
Deviation
within high
and low
limits
Hysteresis Hysteresis
Temperature setpoint
Measured value
Opn (off)Opn (off)
Cls (on)
Deviation setting
8
18
(See
note.)
Deviation
low limit
Cls (on)
Hysteresis
Opn (off)
Measured value
Temperature setpoint
Deviation setting
4
14
(See
note.)
De-
energized
on PV
high limit
Hysteresis
Opn (on)
Cls
(off)
Alarm setting
Measured value
9
19
(See
note.)
De-
energized
on
deviation
high limit
Measured value
Temperature setpoint
Hysteresis
Deviation setting
Opn (on)
Cls (off)
5
15
(See
note.)
De-
energized
on PV
low limit
Hysteresis
Cls (off)Opn (on)
Alarm setting
Measured value
10
20
(See
note.)
Fault
diagnosis
output
The contact is closed at input
burnout. 21 FAIL output
The output contact is opened in the
following events:
• Program error • A/D converter error
• ROM error • RJC error
• RAM error • EEPROM error
• power failure
22
Note: The alarms numbered 1 to 10 have
no waiting action, while alarms 11
to 20 have a waiting action.
The waiting action turns off the
PV and deviation alarms that
occur from the start of the control
operation until a stable state is
reached
Abnormal
Alarm output = ON
Normal
Low limit alarm
setpoint
In this area, the alarm output is turned
off even when a measured value falls
below the low limit alarm setpoint.
Time
Power-on
°C
Taken as
normal.
Waiting action
CAUTION
Changing certain setup parameters may
automatically initialize the operating
parameters. Therefore, after you
change the setup parameters, always
check the operating parameter settings
to nd out if appropriate values have
been set for them. If the operating
parameters have been initialized, set
them to their appropriate values.

IM 05C01E22-01E 7th Edition Mar. 14, 2016-00
4
■Description of Parameters
ThissectiondescribestheparameterfunctionsspecictotheUT150Llimitcontroller.(Thefunctions
described in other sections of this manual and the general functions are not discussed.)
Parameter Function
Relay hysteresis for
control output
For control, you can set a hysteresis around the on/off point (SP) to prevent chattering.
On/off point (SP)
Hysteresis
ON
OFF
HYS
PVinputlter This function should be used when the PV display value may uctuate greatly, for
example,whenthemeasuredinputsignalcontainsnoise.Thelterisoftherst-order
lagtype,andFLsets the time constant.If a larger time constant isset, the lter can
remove more noise.
Input 2-seconds filter 10-seconds filter
FL
PV input bias This function adds a bias value to the measured input value, and the result is used for
display and control computation.
PV value inside the controller measured input value PV input bias+=
ThisfunctionisusefulforcarryingoutneadjustmentwhenthePVvalueiswithinthe
required accuracy but it differs from the value obtained by other equipment.BS
Decimal point position
of measured input
For DC voltage input, the input signal can be scaled for the particular engineering unit.
For example, if you set the input type (IN) at range code 22, the initial range is 0.0 to
100.0.
a.UsingDP,setthedecimalpointpositiontfortheengineeringunityouwanttouse.(In
the example below, the 2 digits to the right of the decimal point)
b. Next, register the scale values of the measured input scale using RH and RL. (In the
example below, RH=10.00 and RL=0.00)
Initial scale
100.0 (5V)0.0 (1V)
10.00 (RH)0.00 (RL)
Measured input scale
(after being scaled)
R
egister the decimal point position using DP.
DP
Maximum/minimum
value of measured input
range (scale)
RH,
RL
Maximum/minimum
value of target setpoint
range
Using the SPH and SPL parameters, you can limit the setting range of the target setpoint
(SP) within the measured input range (scale).
This function prevents SP from being mistakenly set at too large or too small a value
(beyond the setting range).
SPH,
SPL
8. Limit Control Function
■Limit Control
When a measured value (PV)
exceeds a setpoint (SP),
“EXCEEDED” lamp lights,
and “OUT” lamp turns ON (A).
The limit output relay is de-
energized then. “EXCEEDED”
lamp turns off when PV goes
into normal condition, while the
output (OUT) display lamp stays
on as it is (B). The output (OUT)
display lamp turns off when a
conrmingoperationisdone
by an operator (C). The way to
conrmispressingthe“ ”
key (or by an external contact,
according to the setting of setup
parameterDIS).Theconrming
operation is not accepted during
PV exceeds SP (D) (during
EXCEEDED lamp lights*). State of output relay is de-energized whenever “OUT” lamp is on.
* Check the “HYS” value if the EXCEEDED lamp is not turn off when PV is lower than SP.
CAUTION
The conrming operation cannot be done by communication (RS-485).
■ Conrming Operation
Dotheconrmingoperationwhenyoustartlimit
control. This operation must be necessary every
time when the controller is powered on. By the
conrmingoperation,stateofoutputrelayis
energized and the output (OUT) display lamp
turns off, if the PV does not exceed SP.
■Power On Status
The state of output relay at power-on can be set by a setup parameter restart mode "R.MD".
(1) When "R.MD" is set to 0.
The output relay is always de-
energized (opened) at power-on,
even if PV does not exceed SP
(A). The output (OUT) display
lampislit.Aftertheconrming
operation, state of output relay is
energized (closed) and the output
(OUT) display lamp turns off if the
PV does not exceed SP (B).
(2) When "R.MD" is set to 1.
The state of output relay is
energized (closed) and the
output (OUT) display lamp turns
off if the PV does not excced
SP at power-on.
(A)
lit
off
lit
off
on
off
EXCEEDED
Lamp
SP
HYS
PV
OUT
Lamp
Output
relay
Operation Power-on confirmation
(accepted)
Fig.2 Power-on status of high limit control when R.MD = 1
(A) (B)
lit
off
lit
off
on
off
EXCEEDED
Lamp
SP
HYS
PV
OUT
Lamp
Output
relay
Operation Power-on confirmation
(accepted)
confirmation
(accepted)
Fig.1 Power-on status of high limit control when R.MD = 0
(A) (B) (C) (A) (D) (B)
lit
off
lit
off
on
off
EXCEEDED
Lamp
SP
HYS
PV
OUT
Lamp
Output
relay
Operation confirmation
(not accepted)
confirmation
(accepted)
Step 1:
Confirm that the
controller shows the
operating display 
and the output (OUT)
display lamp lights.
Step 2:
Press the key for at least
1 second to turn off the output
(OUT) display lamp.
The confirming operation is
now finished.
Note 1: The output (OUT) display
lamp does not turn off
during the
EXCEEDED lamp lights.
Note 2: Check the “HYS” value if the
EXCEEDED lamp is not turn off when
PV is lower than SP.
■Duration Time (Refer to the conrmation display  in the owchart on page 3)
The time while PV exceeds SP is counted and stored in the memory. It is displayed in the “TIME” in
theconrmationdisplay.
Display time range: 00.00 to 99.59
● How to RESET
• Push the “ ”keyforaboutonesecondtoresetthedurationtimeintheconrmationdisplay
where “TIME” is displayed. When the count is reset, “0.00” is displayed until PV exceeds SP
again.
• The time count is reset when power is turned on.
• If PV exceeds SP while the old time count data is retained in the memory, the old data should
be automatically reset, and the new time counting starts from “0.0”.
• It is impossible to reset the time count while PV exceeds SP by any operation.
• Duration time cannot be reset by an external contact or communication (RS-485).
■ Maximum/Minimum Value
The maximum value or minimum value of PV is stored in the memory and displayed in the “HI” or
“LO”displayintheconrmationdisplay.
Whenthecontroltypeisspeciedashighlimitcontrol,themaximumvalueisdisplayedinthe“HI”
display,andthecontroltypeisspeciedaslowlimitcontrol,theminimumvalueisdisplayedinthe
“LO” display.
When the PV exceeds SP and then return to the normal status, Maximum/Minimum value is retained
as it is, but when PV exceeds SP again, it is automatically reset and start taking new value for its
maximum/minimum value.
● How to RESET
• Push the “ ” key for about one second to reset the maximum/minimum value in the
conrmationdisplaywhere “HI” or “LO” is displayed. The value is reset, and the value
immediatelyaftertheconrmationshouldberecognizedasamaximumorminimumvalue.
• Whenthepoweristurned-on,thememoryshouldberesetandtherstPVshouldbe
recognized as maximum.
• Maximum/minimum value cannot be reset by an external contact or communication (RS-485).
• It is impossible to reset the maximum/minimum value while PV exceeds SP by any operation.
9. Troubleshooting
Intheeventofanabnormality,performthefollowingchecksasoutlinedbytheowchart.
Is the controller defective?
Completely inactive?
Normal?
Contact us for repair Problem solved
Cancel the setting
Key operation failure?
Is the key
locked?
Communication
function included?
No communication capability
Normal?
Correct it
Check the terminal connection
of the power supply
Check key-lock
setting
Display failure? I/O signal failure?
Communication
failure?
Turn the power off,
then on
Check the communication-
related parameters
Verify the spec. of
communicating partner
Check the
communication wiring
Verify the I/O spec.
of controller
Verify the spec. of
I/O destinations
Check the model
and suffix codes
Check the power
supply voltage
Yes
Yes Yes
Yes
Yes Yes Yes
Yes Yes
No
No
No
No
No No No
No
■Error Display during Operation
(1)
If the controller displays one of the following, carry out the appropriate remedy for the particular error.
Display Error content Remedy
P.Er The parameter is abnormal Check the settings of all the parameters and set them
at their proper values.
B.o Input burnout Check the sensor wiring and correct it.
OOO
PV over-scale
(PV exceeds its effective range.)
Check the input type and range settings and
correct them.
UUU
PV under-scale
(PV falls below its effective range.)
Flashing period
on PV display
Communication failure
(for /RS option only)
Pressanykeytostoptheashing.
(2) The controller needs to be repaired if any of the indications in the table below appear.
In these cases, do not try to repair the controller yourself. Order a new controller or contact us for
repair.
Display Error content Display Error content
Unknown (at power-on) CPU failure Flashing “Err” (at power-on) RAM or ROM failure
All extinguished
(at power-on)
Power source failure Flashing “Err”
(during operation)
A/D converter failure,
RJC failure, or EEPROM
failure
“Err” (at power-on) Calibration abnormal
■When Power Failure Occurred during Operation
● Momentarypowerfailuresoflessthan20mshavenoeffectonthecontrolleroperation(i.e.,
normal operation continues).
● Forpowerfailureslongerthan20ms,howeverthestatuswillbeasfollows.
(The controller action at power recovery is the same as at power-on.)
• Alarm action: Continues (but alarms with a waiting action enter the waiting state once)
• Setting parameters: Maintained