| Functional Specifications |
| Number of program patterns |
30 maximum |
| Number of program segments per pattern |
99 maximum |
| Number of program segments |
300 maximum (sum of segments for all program patterns) |
| Configurable number of events |
400 maximum (sum of events for all program patterns) |
| Number of program repeats |
999 maximum, or unlimited repeats. |
| Segment time |
0 minute 0 s to 59 minute 59 s, or 0 h 0 minute to 99 h 59 minute. |
| Start/stop of program pattern |
Program patterns can be started (RUN), stopped (RESET), paused (hold) or advanced by means of contact inputs or from instrument operation. |
| Switching between program patterns |
Achieved by contact inputs or from instrument operation. |
| Wait time |
OFF, or 0 minute 1 s to 99 minute 59 s or 0 h 1 minute to 99 h 59 minute. |
| Wait zone |
0 to 10% of measured input range width. |
| The UP modes with a single program setting function are |
Single-loop control, cascade primary-loop control, loop control with PV switching, loop control with PV auto-selector, and cascade control. Note that, in cascade control, the program setting function acts on the primary-loop only. |
| Segment PID selection |
PID-parameter numbers being used can be selected on a segment basis. Zone PID selection:PID parameter sets are switched depending on the value of the applied PV input. Either the reference point method (reference point; a setpoint for switching between PID parameter sets) or the reference deviation method is used for the switching. |
| Reference point method |
Divides the measuring input range into as many as seven zones using a maximum of six reference points, and switching between PID parameter sets is done on a zone basis. |
| Reference deviation method |
Switches between PID parameter sets depending on whether the control deviation (DV) is within the given reference deviation or exceeding the deviation. This method has priority over the reference point method during operation. |
| Configurable number of time events |
Max.8 points Time event setpoint:Allows the controller to output a time event ON or OFF after the lapse of a specific time from when the program switches from one segment to another. The lapse of time is configurable between 0 minute 0 s and 99 h 59 minute. |
| Number of time event indicator lamps |
4 points (TME 1, 2, 3, 4) |
| Configurable number of PV events |
8 points maximum |
| PV event indicator lamps |
2 points (PVE1 and PVE2) |
| Event types |
PV high limit, PV low limit, Deviation high limit, Deviation low limit, Deenergized on deviation high limit, Deenergized on deviation low limit, Deviation high and low limits, High and low limits within deviation, Deenergized on PV high limit, Deenergized on PV low limit, SP high limit, SP low limit, Output high limit, Output low limit. |
| Configurable ranges of PV events |
PV alarm: -100 to 100% of measured input range.
DV alarm: -100 to 100% of measured input range width.
Alarm hysteresis: 0.0 to 100.0% of measured input range width. |
| Alarm types |
PV high limit, PV low limit, Deviation high limit, Deviation low limit, Deenergized on deviation high limit, Deenergized on deviation low limit, Deviation high and low limits, High and low limits within deviation, Deenergized on PV high limit, Deenergized on PV low limit, SP high limit, SP low limit, Output high limit, Output low limit. |
| Alarm setting range |
PV/SP alarm: -100 to 100 % of measured input range.
Deviation alarm: -100 to 100 % of measured input range width.
Output alarm: -5.0 to 105.0 % of output value.
Alarm hysteresis: 0.0 to 100.0 % of measured input range width. |
| Stand-by action |
Stand-by action can be set to make PV/ deviation alarm OFF during start-up or after SP change until SP reaches the normal region. |
| Other alarm actions |
Sensor grounding alarm: Detects sensor deterioration and outputs an alarm.
Fault diagnostic alarm: Input burnout, A/D conversion error, RJC error
FAIL output: Abnormality in Software, Abnormality in Hardware |
| Number of Instrument Alarm Settings |
4 points |
| Number of Instrument Alarm Outputs |
Max. 4 points One of PV alarm/Deviation alarm, Fault diagnostic alarm, Sensor grounding alarm and Fail output can be output with contact output. (Note): Refer to the later "Contact Outputs" in Hardware Specifications. |
| Control Functions |
| Single-loop control (UP mode 1) |
The most simple and basic control function. |
| Cascade primary-loop control (UP mode 2) |
Output tracking function and cascade control logic are provided. Suitable for primary-loop cascade control. |
| Cascade control (UP mode 4) |
Dual control function for cascade control in a single instrument. |
| Loop control with PV switching (UP mode 6) |
Two measured inputs are switched for control depending on the value of contact input or measured input. |
| Loop control with PV auto-selector (UP mode 7) |
Two measured inputs are automatically selected for control with a high, low, average or temperature-difference selector. |
| Control Computation Functions |
| In each UP mode, the following types of control computation can be selected |
Continuous PID control, Time proportional PID control, Position proportional PID control (for UP550-1), Relay ON/OFF control, and Heating/Cooling control (for UP550-2). |
| Number of PID parameter sets |
Up to eight sets can be set; eight sets each for the main loop and slave loop in the case of cascade control. |
| Auto-tuning |
Available as standard. Possible to activate auto-tuning for both main and slave loops for cascade control. |
| "SUPER" function |
Overshoots generated by abrupt changes in the target setpoint or by disturbances can be suppressed. |
| "SUPER 2" function |
This function stabilizes the state of control that is unstable due to hunting, etc. without requiring any change in PID constants, when the load and/or gain varies greatly, or when there is a difference between the characteristics of temperature zones. |
| Preset output function |
When the instrument is in Stop mode, measured input is burnt-out, or an abnormality is found in an input circuit, a preset setpoint is output as a control output. |
| Control cycle time |
100 ms: Available when UP mode is not cascade control (UP mode 4).
200 ms: Available when UP mode is cascade control (UP mode 4). |
| AUTO/MANUAL switching |
Bumpless switching between automatic operation mode and manual control mode is available by using instrument operation or contact input. The contact input has priority over instrument operation or switching by communication. |
| RUN (PRG)/STOP (RESET) switching |
Bumpless switching from Run to Stop mode is available by using the front key or contact input. The contact input has priority over the front key or switching by communication. Control computation is valid in Run mode but not in Stop mode. The preset value is output as a control output. Other functions operate normally. |
| CASCADE/Local SP switching |
Switching between the cascade, automatic and manual operating modes is available by using instrument operation or contact input when in Cascade control. The contact input has priority over instrument operation or switching by communication. |
| Proportional band |
0.1 to 999.9% 0.0 to 999.9% (for heating/cooling PID control), 0.0% available for ON/OFF control. |
| Integral time |
1 to 6,000 s, or OFF (for Manual reset) |
| Derivative time |
1 to 6,000 s, or OFF |
| ON/OFF control hysteresis |
0.0 to 100.0% of measured input range width |
| Preset output value |
-5.0 to 105.0% (0 mA or less cannot be output) |
| Output limiter |
Setting range: -5.0 to 105.0% for both high and low limits However, "low limit setpoint |
| Shutdown function |
When manual control is carried out with 4 to 20 mA output, control output can be output down to about 0 mA (shutdown is specified for -5.0% or less). |
| Rate-of-change limiter for output |
OFF or 0.1 to 100.0%/s |
| Deadband for heating/cooling control |
-100.0 to 50.0% for output value |
| Deadband for position-proportional control |
1.0 to 10.0% for output |
| Configuration of Input/Output Signal |
| Measured Input Computations |
Input processing, Square root extraction (voltage input only, Input low cut 0.0 to 5.0%), Ten-segment linearizer function, Segment bios, Bias addition (-100.0 to 100.0%), and First order lag filter (off, time constant 1 to 120 s) |
| Auxiliary Input Computations |
Input processing, Square root extraction (Input low cut 0.0 to 5.0%), Bias addition (-100.0 to 100.0%), Ratio multiplication (0.001 to 9.999), First order lag filter (OFF, time constant 1 to 120 s) |
| Display and Operation Functions |
The controller display either PV1 or PV2 (only during cascade control), when switched, on the 5-digit display.
The number of display digits is 4 or 5. For thermocouple or RTD, data below the decimal point can be set not to display. The display range is -19999 to 30000 and the display span is 30000 or less. [550.00 appearing in the product photograph on page 1 cannot actually be displayed.] |
| Operating display |
Necessary data for operation is displayed according to UP mode. Such items as Pragram pattern, Setpoint, Control Output, control output bar, deviation trend is displayed. Time base of deviation trend is 120 s to 20 h. |
| Operating parameters setting display |
The Operating parameters, which are mainly changed during operation, such as PID constant, are displayed. |
| Program Parameters Setting display |
Setting of Program pattern, stand-by action, parameters of Repeat action are displayed. |
| Setup Parameters Setting display |
The Setup parameters to configure functions of the instrument before starting operation are displayed. The explanation of each parameters is provided. UT mode is set in this display. |
| SELECT display |
Up to five displays which are frequently accessed can be selected from Operating parameter setting display and Setup parameters setting display. |
| Event indicator lamps |
Seven lamps, TME1, TME2, TME3, TME4, PVE1, PVE2, and AL1 |
| Operation mode indicator lamps |
PRG (program operation), RST (operation at a stop), HLD (operation hold), LOC (local setting), MAN (manual operation), CAS (cascade operation), and PV2 (process variable 2) |
| keys |
Increase or decrease setpoints and other parameters displayed on the LCD display. |
| DISP key |
Switches from one data value to another on the LCD display. |
| SET/ENT key |
Used for setting or changing set data, switching the LCD displayed contents, and switching operation modes except for A/M. |
| MODE key |
Switches between the operating modes. |
| PT. No key |
Selects the pattern number. |
| RUN key |
Initiates the program operation. |
| RESET key |
Stop and reset the program operation. |
| Communications Function |
| This controller has 4 types of communication protocol with one communication interface. Communication is possible with personal computer, programmable logic controller, and other controllers. |
| Computer link communication |
Communication protocol with a personal computer. |
| Ladder communication |
Communication protocol with the ladder program on some programmable logic controllers. |
| MODBUS communication |
Communication protocol with a personal computer or PLC. |
| Coordinated operation |
Protocol used to communicate with more than one UT750, UT550, UT520, UT350 or UT320 controller. The UP550 always serves as the master station. |
| Maximum number of connectable UP550's |
31 (total including other UT, UP, or UM models) |
| Maximum communication distance |
1200 m |
| Communication method |
Two-wire half-duplex or four-wire half- duplex, start-stop synchronization, and non- procedural |
| Communication rate |
600, 1200, 2400, 4800, or 9600 bps |
Hardware Specifications
Input/Output Signal Specifications |
| Number of input points |
1 point |
| Input type, measurement range, and measurment accuracy |
The type of input and measurement range can be specified using the input range code shown in the table on page. 5. |
| Sampling period |
100, 200, or 500 ms (selectable) |
| Burnout detection |
Activated for thermocouple (TC) input, RTD input, or standard signal of 0.4 to 2 V DC or 1 to 5 V DC. Possible to specify a travel of upscale, downscale, or off. For standard signal input, set to burn out at Approx. 0.1V. |
| Input bias current |
0.05 µA (for TC or RTD b-terminal) |
| Specified current(RTD) |
about 0.13 mA |
| Input resistance |
1 MΩ or more for TC or mV input About 1 MΩ for DC voltage input |
| Allowable signal source resistance |
250Ω or less for TC or mV input Signal source registance effect 0.1 µV/Ω or less 2 kΩ or less for DC voltage input Allowable signal source resistance effect: 0.01%/100 Ω or less |
| Allowable leadwire resistance (for RTD input) |
Maximum 150 Ω/one wire (Lead resistances of three wires must be equal.) However, it must be 10 Ω/one wire for the range of -150.0 to 150.0˚C. Effect of wiring resistance: ±0.1˚C/10 Ω |
| Allowable input voltage |
±10 V DC for TC/mV/RTD input
±20 V DC for DC voltage input |
| Noise rejection ratio |
Normal mode 40 dB (50/60 Hz) or more Common mode 120 dB (50/60 Hz) or more |
| Reference junction compensation error |
±1.0˚C (15 to 35°C), ±1.5˚C (0 to 15°C and 35 to 50°C) |
| Applicable standards |
JIS, IEC, and DIN (ITS-90) for TC and RTD |
| Response time |
1 second or less, 63% (10 - 90%) (The time required for transmission output to reach 63% of the maximum excursion when PV abruptly changes from 10% to 90%) |
| Functions |
PV input to secondary-loop of cascade control, etc. |
| Input type |
Settable within the range of voltage input 0 to 2 V DC, 0 to 10 V DC, 0.4 to 2.0 V DC or 1 to 5 V DC. |
| Number of inputs |
1 point |
| Sampling period |
100, 200 or 500 ms auxiliary analog input period is linked with PV sampling period. |
| Input resistance |
Approx. 1 MΩ |
| Input accuracy |
±0.3% ±1 digit of F.S. for 0 to 2 V DC input ±0.2% ±1 digit of F.S. for 0 to 10 V DC input ±0.375%±1 digit of F.S. for 0.4 to 2.0 V DC input. ±0.3%±1 digit of F.S. for 1 to 5 V DC input. Performance in the standard operating conditions (at 23± 2°C, 55± 10% RH, and 50/ 60 Hz power frequency) |
| Slidewire resistance |
Total resistance 100 Ω to 2.5 kΩ (with detection of slidewire breakage) Measuring resolution ±0.1% of total resistance |
| Number of output points |
1 or 2 (depend on selection of control output) Retransmission output 2 is available only when “relay” is selected as the control function. |
| Output signal |
4 to 20 mA DC, 0 to 20 mA DC, 20 to 4 mA DC or 20 to 0 mA DC (0 mA or less cannot be output) |
| Load resistance |
600 Ω or less |
| Output accuracy |
±0.1% of span (±5% for 1 mA or less) Performance in the standard operating conditions (at 23± 2°C, 55± 10% RH, and 50/ 60 Hz power frequency) |
| When using for 15 V DC loop power supply |
Supply voltage 14.5 to 18.0 V DC, maximum supply current about 21 mA (with the protection circuit at field short-circuit) |
| Control Outputs |
| Number of output points |
1 or 2 (for heating/cooling type) (switchable to voltage pulse output) |
| Output signal |
4 to 20 mA DC, 0 to 20 mA DC, 20 to 4 mA DC or 20 to 0 mA DC |
| Load resistance |
600 Ω or less |
| Output accuracy |
±0.1% of span (±5% for 1 mA or less) Performance in the standard operating conditions (at 23± 2°C, 55± 10% RH, and 50/60 Hz power frequency) |
| Number of output points |
1 or 2 (for heating/cooling type) (switchable to current output) |
| Output signal |
On voltage 12 V DC or more (load resistance 600 Ω or more) Off voltage 0.1 V DC or less |
| Resolution |
10 ms or 0.1% of output value, whichever is greater |
| Number of output points |
1 or 2 (for heating/cooling type) |
| Output signal |
At three terminals of NC, NO and Common |
| Contact rating |
250 V AC, 3 A or 30 V DC, 3 A (resistive load) |
| Resolution |
10 ms or 0.1% of output value, whichever is greater |
| Contact Inputs |
| Application |
Program pattern switching, Local/Remote switching, PRG/RESET switching, Pause of operation, Advance of program, Measured input switching, and display of messages. |
| Input type |
Non-voltage contact input or transistor open collector input |
| Input contact rating |
12 V DC, 10 mA or more |
| On/off detection |
For non-voltage contact input,
On contact resistance 1 kΩ or less;
Off contact resistance 20 kΩ or more
For open-collector transistor input, On 2 V or less; Off leak current 100 µA or less Minimum retention time for status detection: PV input sampling period ×3 |
| Application |
Time event outputs, PV event outputs, and instrument alarm outputs |
| Number of outputs |
7 points (3 relay-contact outputs and 4 transistor outputs), where a control output relay can be used as a contact-output relay for time event No. 5 if no relays are in use for control output. This enables the number of outputs (seven) to be increased to eight by adding one more relay output. |
| Relay contact rating |
240 V AC, 1 A or 30 V DC, 1 A (Common to COM terminal) |
| Transistor contact rating |
24 V DC, 50 mA (Common to COM terminal) |
| Measured value (PV) display |
5 digit seven-segment red color LED display; height of letters 20 mm |
| Data display |
32 × 128 dot-matrix LCD display with back- light |
| Status indicator lamps |
LEDs |
| Safety:Compliant with IEC/EN61010-1 |
2001, approved by C22.2 No.61010-1 (CSA), approved by UL61010-1.
Installation category : CAT. II
Pollution degree : 2 (IEC/EN61010, C22.2 No.61010-1)
Measurement category : I (CAT. I : IEC/EN61010-1)
Rated measurement input voltage : 10V DCmax.(across terminals), 300V AC max.(across ground)
Rated transient overvoltage : 1500V (Note)
Note : It is a value on the safety standard which is assumed by IEC/EN61010-1 in measurement category I, and is not the value which guarantees an apparatus performance. |
| EMC standards |
EMC Regulatory Arrangement in Australia and New Zealand EN 55011 Class A, Group 1 During test, the controller continues to operate with the measurement accuracy within ±20% of the range. |
| KC marking |
Electromagnetic wave interference prevention standard, electromagnetic wave protection standard compliance |
| Construction |
Dust-proof and Drip-proof front panel conforming to IP55. For side-by-side close installation, controller loses its dust-proof and drip-proof protection. |
| Material of the body |
ABS resin and polycarbonate |
| Case color |
Black |
| Weight |
Approx. 1 kg or less |
| External dimensions |
96W × 96H × 100D (from the panel face) (mm) |
| Mounting |
Direct panel mounting; mounting bracket, one each for upper and lower mounting |
| Panel cutout dimensions |
92 +0.8 0 W × 92 +0.8 0 H (mm) |
| Tilting |
Up to 30 degrees from horizontal; Must not face downward. |
| Wiring connection |
With M3.5 screw terminals (for signal, power and grounding wiring) |
| Power Supply and Isolation |
| Power supply |
Rated voltage 100 to 240 V AC (±10%), 50/60 Hz |
| Power consumption |
MAX. 20 VA or less (MAX. 8.0 W) |
| Lithium battery |
For memory backup. Service life approx. 10 years |
| Withstanding voltage |
1500 V AC for 1 min. between primary terminals and secondary terminals
1500 V AC for 1 min. between primary terminals and ground terminal
1500 V AC for 1 min. between ground terminal and secondary terminals
500 V AC for 1 min. between secondary terminals |
| Isolation resistance |
20 MΩ or more for 500 V DC applied between power terminals and ground terminal |
| Grounding |
Class D grounding (grounding registance of 100Ω or less). |
| Isolation Specifications |
| Measured input terminal |
Isolated from other input/output terminals, but not isolated from internal circuits. |
| Auxiliary analog input terminal |
Isolated from other input/output terminals and internal circuits. |
| Control output (current output or voltage pulse output) and retransmission output |
Not isolated between control output and retransmission output, but isolated from other input/output terminals and internal circuits. |
| Relay contact control output terminals |
Isolated from other input/output terminals and internal circuits. |
| Contact input terminals |
Not isolated from other contact input terminals and communication terminals, but isolated from other input/output terminals and internal circuits. |
| Relay contact output terminals |
Isolated from other input/output terminals and internal circuits. |
| Transistor contact output terminals |
Not isolated from other contact outputs, but isolated from other input/output terminals and internal circuits. |
| RS-485 communication terminals |
Not isolated from contact input terminals, but isolated from other input/output terminals and internal circuits. |
| Feedback slide wire resistance input terminals |
Not isolated from control output (current or voltage pulse control output) and retransmission output terminals. Isolated from other input/output terminals and internal circuit. |
| Power terminals |
Isolated from other input/output terminals and internal circuits. |
| Ground terminal |
Isolated from other input/output terminals and internal circuits. |
| Environmental Conditions |
| Ambient temperature |
0 to 50°C (40°C or less in close mounting side-by-side) |
| Temperature change rate |
10°C/h or less |
| Ambient humidity |
20 to 90% RH (no condensation) |
| Magnetic field |
400 A/m or less |
| Continuous vibration (5 to 14 Hz) |
Peak-to-peak amplitude 1.2 mm or less |
| Continuous vibration (14 to 150 Hz) |
4.9 mm/s2 or less |
| Short period vibration |
14.7 µ/s2 , 15 s or less |
| Shock |
147 m/s2 or less, 11 ms |
| Installation altitude |
2000 m or less above sea level |
| Warm-up time |
30 minutes or more |
| Temperature |
-25 to 70°C |
| Temperature change rate |
20°C/h or less |
| Humidity |
5 to 95% RH (no condensation) |
| Effect of ambient temperature |
Whichever is greater, ±1 µV/°C or ±0.01% of F.S./°C for voltage or thermocouple inputs. ±0.02% of F.S./°C for Auxiliary input ±0.05°C/°C (ambient temperature) or less for RTD inputs. ±0.05% of F.S./°C or less for analog outputs. |
Effect of voltage fluctuation
(within rated voltage range) |
Whichever is greater, ±1 mV/10 V or ±0.01% of F.S./10 V for analog inputs. ±0.05% of F.S./10 V or less for analog outputs. |