Heating Rate Controller · Training and operating reference

Programming the Omron E5CC-T

Button-by-button operating guide for Omron E5CC-T controllers · confirm the fitted model and option suffix for each channel

Controller options differ between model suffixes. The reference register lists E1 as E5CC-TQX3A5M-000 and E2 as E5CC-TQX3A5M-003; confirm the actual nameplates before selecting hardware-dependent settings. Documentation centre →

← Operator manual
Use the controller with the external heater supply isolated during keypad training. Changing a setpoint, entering RUN or changing programme settings may activate the control output. Use isolated controls or a safe commissioning setup. The exact availability of parameters also depends on protections, fitted controller options and previously configured settings.

Interactive programming atlas · all controller menu levels

Open the press-by-press Omron map to follow LEVEL/MODE navigation, inspect every parameter's purpose, understand programme and PID branches and filter by model hardware and configuration. Use the complete manual map when you need to understand a screen not covered by the exercises below.

Explore all menu levels and button paths → Input type & sensor settings →

Compiled from Omron H185 Appendix A-9. Actual firmware may omit parameters; use displayed mnemonics rather than fixed MODE press counts.

Try the interactive Programme Studio

Build an E5CC-T rate-of-rise programme with up to 32 ramp, soak and step segments, then practise with the virtual five-button front panel. The simulator covers common menus only; compare with the actual Omron before live use.

Open builder and simulator →

How to use this manual

The everyday steps come first. Configuration comes later.

1Once per controller

Commission its sensor, units, control and safety settings. Initial setup →

2For each experiment

Choose a saved programme or enter a new target and rate.

3During the test

Start deliberately, observe PV versus SP, then safely stop and isolate.

Nothing has been omitted. Every worked procedure starts from the normal PV/SP display and says which button to press, which display to look for and what value to enter. Parameters that are set once are deliberately separated from experiment-by-experiment editing.

Five controller keys — exactly as on the front panel

The physical buttons are not marked O, M or S. Those are abbreviations used in Omron's technical documentation. Read the symbols below from left to right, matching the real controller. Use the named key in the instructions, not a letter that you expect to see printed on the panel.

1 · LEVEL

Leftmost key. Move between setting levels. Short and long presses differ.

2 · MODE

Looping-arrow key. Move through parameters; hold for reverse scroll where supported.

≪PF
3 · SHIFT / PF

Default function: move the selected digit during numeric editing.

4 · DOWN

Reduce a value or move down through choices.

5 · UP

Increase a value or move up through choices.

In the written procedures: LEVEL = first button (rectangle), MODE = second button (looped arrow), PF = third button (≪PF), followed by DOWN and UP. These graphical marks are reproduced as vector illustrations. When you change a value, press MODE once to store it (or wait at least three seconds). If a parameter does not appear, stop rather than guessing.

Select and run an existing programme

Once a programme is saved it does not need to be re-entered. d.prg selects the programme to EDIT; prg selects the programme to RUN. These are independent controller settings.

Three different displays: d.prg = 1 means edit stored Programme 1; prg = 1 means use Programme 1 for execution; pgsg reports the selected/executing programme and segment. Always confirm the selected programme on the actual display.
  1. 1
    With the external DC heater supply safely isolated, verify a plausible thermocouple temperature (PV) and the authorised controller and independent heater-safety configuration.
  2. 2
    From the normal PV/SP screen, press MODE briefly until r-r is displayed. Confirm rst. Do not equate a controller RESET with electrical isolation.
  3. 3
    While still in Operation Level, keep pressing MODE briefly until prg appears (typically after a-m and pgsg). Use UP/DOWN to select 1 for the 50 °C worked example, if it has been saved to that slot, or the approved 0–7 slot for another experiment. Do not select the RUN programme at d.prg. The prg setting is normally editable only in RESET and when event inputs are not selecting the programme.
  4. 4
    Read back prg and pgsg. The monitor combines programme and segment, e.g. 1.00 means programme 1, segment 0. Check the current programme and segment on the actual controller.
  5. 5
    To check a stored profile, from PV/SP press LEVEL briefly once to enter Programme Setting Level at d.prg. Select that programme for inspection, then use MODE to inspect s-no, d.seg, segment fields, pid, rpt and link without changing them. From Programme Setting Level, LEVEL briefly three times returns to Operation Level.
  6. 6
    Confirm r-r = rst, spmd = psp (programme mode), p-on = rst, rtsm = stop, correct PV and the approved programme-end action. Check the controller is not inadvertently in Manual mode.
  7. 7
    Commissioned systems only: when authorised to start, use MODE to reach r-r = rst, press DOWN briefly to select run, and verify the indication. Confirm the controller displays RUN before proceeding. Only then enable the separately approved heater supply path under the actual operating procedure. Do not use the MODE+DOWN shortcut until it has been independently checked.
  8. 8
    During a commissioned run, monitor actual PV versus programmed SP and the pgsg segment, prgt elapsed time and rptm repetitions. The ACTIVE LED shows demand, not measured current. To stop, use the authorised shutdown, command r-r = rst, disable the heater channel and isolate external DC. If eset = rst, the controller should return to RESET at the programme end, subject to actual electrical verification.
USB setup power limitation (Omron H185 §§2-4 and 5-23): the E58-CIFQ2 allows parameter editing and PV display, but the controller's control, alarm and auxiliary outputs will not operate without its specified terminal supply. Internal programme displays may run under USB setup power, but heater outputs cannot operate without the specified terminal supply. Never use a USB-only test as evidence of heater operation.

Windows E5CC-T Studio: USB identification, sensor choices and settings

The Windows Studio communicates with one Omron controller at a time. It is an alternative way of reading and setting that controller; it does not monitor actual heater current or prove the assembled heater is safe. The website builder works entirely offline and cannot write hardware. Use the Windows application only with the approved setup and transfer procedure.

What USB identifies: the documented 0503 command gives a 10-character model prefix such as E5CC-TQX3A. It does not return the following 5M terminal/input code or the final -000 / -003 option suffix. Confirm the full number on the physical nameplate. A successful parameter read does not prove that a particular optional input/output is fitted or correctly wired.

Choose the suffix written on the nameplate to view applicable option categories.

Illustration only: this selector does not detect hardware. Other output variants may offer different valid suffixes; e.g. option -004 is a current-output variant with event inputs 3 and 4 and RS-485. The Windows app filters possible full order codes by the actual USB prefix, then requires an explicit nameplate choice for each connection. It exposes applicable settings only after a successful register read, while keeping unknown and read-only parameters protected.

Supported programme input catalogue

All documented input-selection codes 0–29 are offered: Pt100/JPt100, K/J/T/E/L/U/N/R/S/B/W and PLII thermocouples, supported infrared inputs, and analogue mA/V ranges. Different input codes have different limits and decimal resolutions. Analogue inputs additionally depend on engineering upper/lower limits and decimal-point settings (C3:0001–0003); those readings are not automatically degrees Celsius. An offline programme can be edited despite sensor-range warnings; resolve all incompatibilities before transferring it.

1Plan freely

Choose the intended input in the website builder or Windows Programme editor. Out-of-range targets remain editable but generate warnings; check segment setpoints, sensor resolution and all controller-wide SP limits.

2Review global change

If a range change is needed, the Windows app offers a proposed in-t change. Confirm the probe actually fitted. A proposed setting is not an applied setting, and one controller-wide input selection affects all eight programmes.

3Apply and verify

With power supplies isolated, use the separate global C3 write process, return to normal operation, read fresh input/SP limits and back up DA programme memory again. Only then validate, preview and write the selected programme.

Do not combine global sensor changes and DA programme writes blindly. USB initial-setting writes use setting area 1. After selected C3 values are written and read back, the native app's Finish + Return to normal action requires explicit confirmation, closes communications writing and issues one documented software-reset command. The reset has no response; reconnecting alone does not confirm the front panel has returned to PV/SP. Visually check the display, then reconnect and perform a new Step 2 read before any programme transfer. An old DA programme can be reinterpreted at a different sensor resolution without its raw memory changing.

The Windows Studio can inspect settings and support selected guarded transfers. Some parameters remain read-only for safety or compatibility. See the engineering record for the detailed capability matrix and current qualification status.

Prefer a step-by-step walkthrough?

Use the guided keypad entry tool to see a single Omron display and button action at a time. Choose a programme number, target, rate and soak duration. The full written method remains below for reference and printing.

Create, save and select Programme 1: 50 °C at 2 °C/min, 15-minute soak

This example creates a ramp to 50 °C at 2 °C/min, followed by a 15-minute soak, using the five front-panel keys. Verify the input type and back up the existing programme before entering it. The engineering archive contains supporting controller test evidence.

WhereDisplayProgramme value
Editing slotd.prg1
Programme segment counts-no2
Segment 0 — rampd.seg, styp, sp, pr0, ramp, 50 °C, 2 °C/min
Segment 1 — soakd.seg, styp, time1, soak, 0.15 = 15 minutes
Programme-wided.seg, pid, rpt, linkend, 1, 0, end
Execution selection (separate)prg1
Power-on stater-rrst after USB reconnection

Button-by-button: create and store the profile

  1. 1
    Prepare and back up. Keep mains and heater DC supplies isolated; power only via the E58-CIFQ2 if using the setup bench. Verify the Type K thermocouple reads sensibly. Check r-r = rst. Record the prior contents of Programme 1 before overwriting that slot.
  2. 2
    Check configuration first: t-pr = pr (rate-of-rise method), pru = m (°C/min), t-u = h-m (hours.minutes), rtsm = stop, p-on = rst, eset = rst in Initial Setting Level; and spmd = psp in Adjustment Level. These are one-time settings — do not reset them unnecessarily.
  3. 3
    Start from the normal PV/SP display. Press LEVEL briefly once. When d.prg appears, use UP/DOWN to display 1. This selects the editing slot, not the RUN programme.
  4. 4
    Press MODE once for s-no. Use UP/DOWN to select 2 active segments, numbered 0 and 1.
  5. 5
    Press MODE once for d.seg. If it reads end, use UP/DOWN to select 0. end is the programme-wide settings position, not a third segment or a special END command.
  6. 6
    Press MODE for styp and set ramp. Press MODE for sp and set 50 °C. Press MODE for pr and set 2. With pru = m, that slope is 2 °C per minute.
  7. 7
    Press MODE once more after the ramp's last field (pr). Check that d.seg = 1 is displayed before editing the next segment. The controller normally advances to the next active segment.
  8. 8
    Press MODE for segment 1's styp; select soak. Press MODE for time; enter 0.15, meaning 15 minutes when t-u = h-m. A soak holds the preceding SP and does not have a separate sp or pr field.
  9. 9
    Press MODE after time. After the final segment, navigate to d.seg = end. Press MODE to view the programme-wide pid setting and confirm the approved PID set; continue through any visible al-1, al-2, al-3 screens without altering unapproved alarm settings. Set rpt = 0 (no repeat), then link = end (no chaining).
  10. 10
    Save and verify. Normal front-panel editing has no separate Save programme button. Let the settings register, leave Programme Setting Level with three brief LEVEL presses, then return and read back the saved fields. Read back the programmed segments, rpt and link to confirm their stored values. If a retention check by power cycle is required, follow the approved shutdown and startup procedure with external heater power isolated.
  11. 11
    Select the saved programme to RUN. Back in Operation Level, press MODE briefly until prg is displayed. Editing d.prg = 1 does not automatically select that memory for RUN. Set prg to 1; the pgsg monitor then indicates Programme 1. Read back prg = 1 and verify RESET before disconnecting. Do not start RUN as part of this saving test.
If the current PV were 20 °C, the nominal commanded ramp would take (50 − 20) / 2 = 15 minutes, followed by 15 minutes soak. This is a setpoint trajectory, not proof that the heater or measured temperature can follow that rate. Conditional waits, controller limits, faults and temperature lag can affect actual results.

Find programme monitors and PID settings

Use the interactive Omron atlas to follow MODE through each level. Start with pgsg (programme/segment), prgt (elapsed time), rptm (repetitions), r-r (RUN/RESET) or d.pid (PID bank).

Visibility varies by controller, protection and configuration. Displayed menus vary with controller options, protection and configuration. See the menu atlas for additional settings.

What USB-only setup can do

The E58-CIFQ2 USB connection supports controller setup and parameter inspection. USB setup power alone cannot operate the controller’s output circuits; it does not test heater switching, temperature regulation or safe restart. For live heating, use the approved operating procedure and the controller’s rated supply.

Heat to 80 °C and hold that target

For a fixed temperature target, not a specified rate. First-time sensor and safety settings are in One-time configuration.

Setpoint
80 °C
Mode
Fixed SP
Ramp duration
Not defined
Commanded temperature setpointIllustrative starting point 20 °C
20 °C50 °C80 °C0Time → 80 °C fixed SPRUN begins · starting PV about 20 °C The temperature does not jump immediately — only the controller target does.

Not a predicted PV curve. Time to reach 80 °C depends on heater power, thermal load and PID response. This mode does not impose a heating rate.

What to enter

DisplayValue
spmdfsp
fsp80.0 °C
r-r (to start)run
r-r (to stop)rst

Expected result: the controller seeks to regulate at 80 °C, but the actual temperature rises gradually, depending on the load.

Every button press

  1. 1
    With the external DC heater supply isolated, start at the PV/SP display. Check one-time configuration is already approved (thermocouple type, °C, control mode, reset and restart behaviour).
  2. 2
    Press LEVEL briefly twice (less than one second each) to enter Adjustment Level. You should see the l.adj entry display.
  3. 3
    Press MODE repeatedly until spmd is displayed. Use ▲/▼ to select fsp (fixed setpoint mode). Press MODE to apply the setting.
  4. 4
    Continue pressing MODE until fsp (fixed setpoint value) appears. Use the SHIFT/PF key to select a digit where its default function is enabled, and ▲/▼ to enter 80.0 °C (or 80 when the commissioned input uses 1 °C resolution). Press MODE to store.
  5. 5
    Press LEVEL briefly twice to return to Operation Level. Confirm PV is plausible and the configured fixed setpoint is 80 °C. Read r-r via MODE and ensure it is rst until the authorised start.
  6. 6
    After commissioning checks, at r-r = rst press DOWN (▼) briefly to display run; then use MODE to navigate onward, checking the displayed status. Only then deliberately enable the heater power path according to the operator procedure. Watch PV move towards 80 °C; the exact heating rate is not controlled by this example.
  7. 7
    To stop, set r-r = rst, disengage the independent heater enable, isolate external DC power and allow the heater to cool. Confirm the output-off behaviour was validated during commissioning.

Ramp at 2 °C/min to 120 °C, then hold 15 min

The setpoint rises at a programmed rate; the measured temperature can lag. This example resets (stops control) at the end.

Example start
20 °C
Target
120 °C
Ramp rate
2 °C/min
Ramp time
50 min
Soak
15 min
Commanded temperature setpointProgram 0 · rate programming
20 °C50 °C85 °C120 °C05065Elapsed time (minutes) Ramp · 2 °C/min15 min soak RESET at end

For an illustrative starting PV of 20 °C, (120 − 20) ÷ 2 = 50 minutes ramp, followed by 15 minutes soak. The vertical end marker means control stops; it does not mean the heater instantly cools. The measured temperature may lag the setpoint.

Values to enter

LocationDisplayValue
Adjustmentspmdpsp
Programd.prg0
Programs-no2
Segment 0stypramp
Segment 0sp120.0
Segment 0pr2
Segment 1stypsoak
Segment 1time0.15

Prerequisites in Initial Setting: t-pr = pr, pru = m, t-u = h-m, eset = rst.

Every button press

  1. 1
    Keep the external heater PSU isolated. Start from PV/SP and confirm the one-time setup is complete: t-pr = pr, pru = m, t-u = h-m, rtsm = stop and the reviewed eset = rst. No need to re-enter these values for every run.
  2. 2
    Press LEVEL briefly twice to enter Adjustment Level (l.adj). Press MODE until spmd is shown. Choose psp (programme setpoint) using ▲/▼, then press MODE to store.
  3. 3
    Press LEVEL briefly twice to return to Operation Level. Press LEVEL briefly once to enter Program Setting Level, where d.prg is the programme selection. Set d.prg = 0 with ▲/▼ and press MODE.
  4. 4
    Continue pressing MODE to s-no (Number of Segments Used). Set 2 and press MODE to store. The ramp is segment 0, the timed soak is segment 1.
  5. 5
    Press MODE repeatedly until d.seg. Select segment 0 using ▲/▼, then press MODE to display the segment's settings. When styp appears, set ramp with ▲/▼, then press MODE.
  6. 6
    Within segment 0, press MODE until sp appears; enter 120.0 °C and press MODE. Move to pr; enter 2 and press MODE. Since pru = m, 2 means 2 °C/min, not 2 °C/hour.
  7. 7
    Press MODE until d.seg appears again. Choose segment 1 using ▲/▼; press MODE. Set styp = soak when this parameter appears, then press MODE.
  8. 8
    Continue with MODE to time for segment 1. Set 0.15, then press MODE to store it. With t-u = h-m, this is 0 hours, 15 minutes, not 0.15 hours. A soak segment needs no separate slope or target setpoint.
  9. 9
    While still in Program Setting Level, review each segment by selecting d.seg = 0 and 1 again. Check the programme's commissioned pid set and any alarms without changing their approved values.
  10. 10
    Press LEVEL briefly three times to return to Operation Level. Confirm r-r = rst before the start; check that spmd = psp, that prg = 0 in Operation Level to RUN this 120 °C Programme 0 example (do not confuse it with d.prg = 0 for editing), and confirm that PV is plausible.
  11. 11
    After the independent protection and electrical checks are satisfied, find r-r = rst with MODE, press DOWN (▼) briefly to display run, and verify the status. Confirm the programme is running and SP begins its planned ramp. Only then deliberately enable the approved heater circuit.
  12. 12
    For a starting PV of 20 °C, the commanded SP takes roughly 50 minutes to reach 120 °C, followed by 15 minutes at that SP. With eset = rst, control stops at the end, subject to validated output-off behaviour. If you want continued control at 120 °C after 65 minutes, a qualified person may instead select eset = cont in Initial Setting Level; that means an indefinite final hold unless stopped separately.
End-of-program choice matters. eset = rst stops controller regulation after the 15-minute hold (subject to verified output-off behaviour). eset = cont continues holding 120 °C until a separate stop command. These are not equivalent.

Initial configuration — do this before normal operation

These are the settings that made the original examples feel so long. They have not disappeared: they belong here, alongside commissioning and sign-off, rather than inside each temperature recipe.

Pre-commissioning instructions, not a completed safety approval. Apply separately to channel 1 and channel 2, with live heater power isolated. Do not assume a software reset or the SSR provides electrical isolation.
A · SENSOR & CONTROL

in-t, d-u, cntl

B · PROGRAMME UNITS

t-u, t-pr, pru

C · END & RESTART

rtsm, p-on, eset, mv-r

Full initial setup, button by button

  1. 1
    Record the hardware before changing anything: controller model, sensor type, controller output, independent heater supply and protection. Keep the external heater DC supply physically isolated. Record existing settings before overwriting them.
  2. 2
    From the normal PV/SP screen, hold LEVEL for at least 3 seconds to enter Initial Setting Level. The first parameter is normally in-t. In this setting level, heater regulation is stopped, but external power must still remain isolated.
  3. 3
    At in-t, use ▲/▼ to select 6 for the intended Type K input spanning −20.0…500.0 °C in 0.1 °C increments. For a different required span and resolution, confirm the correct Omron input type with the sensor specification first; 5 is −200…1300 °C in 1 °C increments. Press MODE to commit.
  4. 4
    Press MODE until d-u appears; choose c for Celsius, then press MODE. Continue to cntl; select pid only if this is the approved control method. Press MODE to save.
  5. 5
    Press MODE until t-u is shown. Select h-m (hours and minutes), press MODE. Find t-pr; choose pr (rate-of-rise programming), press MODE. Find pru; select m (per minute), press MODE. These settings apply to the worked ramp example.
  6. 6
    Find rtsm; set stop, so RESET stops controller regulation. Find p-on; set rst, so a new controller power-up enters RESET rather than restarting the programme. Press MODE after each change. These software settings do not replace the physical heater-enable restart interlock.
  7. 7
    Find eset (operation at programme end). For the 15-minute-hold-then-stop example, select rst, then press MODE. cont instead continues temperature control at the last setpoint indefinitely; use it only when your documented test method requires this.
  8. 8
    Hold LEVEL for at least 1 second to leave Initial Setting Level. From the normal Operation Level, press LEVEL twice briefly to enter Adjustment Level. Press MODE until spmd; set psp for programme operation (or fsp when carrying out the fixed setpoint example), then press MODE. Return to Operation Level with LEVEL twice briefly.
  9. 9
    With the heater disconnected, have the commissioning engineer confirm mv-r = 0.0% (MV at Reset), sensor-fault output behaviour, independent thermal protection and output-off state after control power is interrupted and restored. Advanced parameters may not be visible; do not override protections or guess. Check the Finder 13.61 relay returns to heater-disabled state after power restoration.
  10. 10
    Recheck the displayed settings against the table below and record them for each channel. Verify RUN/RESET and programme end on a safe inert load before use with an experimental heater. Both channels use E5CC-TQX3A5M-000; confirm the installed nameplates and validate any firmware-specific screen differences on each controller.

Once verified: ordinary experiments use the procedures above. Revisit these settings only if the hardware, safety case or intended programme behaviour changes. Record approved values, date and checks on the equipment's commissioning sheet.

Autotune · After the system has been commissioned

The E5CC-T PID autotune routine adjusts control constants by applying controlled output changes. It is not required for entering a temperature programme, but accurate rate tracking usually benefits from appropriate PID tuning.

  1. 1
    Carry out autotune only after the electrical system, sensor mounting, heater, load and independent temperature protections have been commissioned. Autotune deliberately cycles heater output and may cause overshoot.
  2. 2
    Use Fixed SP Mode for a representative operating target (for example 80 °C on a safe inert thermal load). Omron states that autotune during a programmed ramp may wait until ramp completion.
  3. 3
    Confirm cntl = pid, required PID set selected and the controller in run. Autotune is unavailable in some reset/mode conditions.
  4. 4
    From Operation Level, press LEVEL briefly twice to reach Adjustment Level. Press MODE repeatedly until at (AT Execute/Cancel) is displayed.
  5. 5
    Use ▲/▼ to select at-2 (100% autotune) and apply with Mode or 3-second pause. The TUNE indicator illuminates while AT runs.
  6. 6
    When autotune finishes, at returns to off and TUNE goes out. Record P/I/D values and verify temperature response before approving the tuned settings.
  7. 7
    To cancel AT, return to at and select off; do not assume partially completed tuning gives safe or appropriate constants.
Do not autotune a battery undergoing thermal runaway or another rapidly changing exothermic test. Use a stable, inert load and documented independent safety limits. Check the resulting controller response before use.

Parameter and display cheat sheet

DisplayPurposeExample / unitLevel
in-tThermocouple input type6: K, −20.0 to 500.0 °C; 5: K, −200 to 1300 °CInitial
d-uTemperature unitc for °CInitial
cntlPID or ON/OFF controlpid (if commissioned)Initial
t-uProgramme duration display unith-m hours.minutes, so 0.15 = 15 minInitial
t-prProgramme methodtime or pr (rate-of-rise)Initial
pruRamp-rate denominatorm = per minute; h = per hourInitial
rtsmAction when programme resetstop = stop controlInitial
p-onProgramme response to power restorationrst = reset (requires validation)Initial
esetAction when programme endscont hold last SP; rst resetInitial
spmdSetpoint control modefsp fixed SP; psp programme SPAdjustment
fspFixed temperature setpointe.g. 80.0 °CAdjustment
d.prgProgramme to EDIT (does not select RUN)0 through 7Programme
s-noNumber of active segments2 (ramp and soak)Programme
d.segSelected segment to edit0 or 1Programme
stypSegment type, rate mode onlyramp, soak, stepProgramme
spSegment final setpoint120.0 °CProgramme
prSegment slopee.g. 2 EU/min with pru = mProgramme
timeSegment duration0.15 = 15 min with t-u = h-mProgramme
pidPID set assigned to edited programmeExample: 1Programme
al-1/2/3Alarm values (not alarm-output enabling)Read each alarm value and verify the configured alarm/output assignmentProgramme
rptNumber of programme repetitions0 = noneProgramme
linkProgramme chainingend = no linkProgramme
prgProgramme selected to RUN0 through 7; selected 1 was retained after restartOperation
pgsgProgramme / segment monitor1.00 means Programme 1 / Segment 0Operation
prgtElapsed programme timeElapsed programme time displayed by the controllerOperation
rptmExecuted repetition count monitorActual repetition count; distinct from configured rptOperation
a-mAuto/Manual switchDo not hold LEVEL unless intentionally entering manual modeOperation
r-rRun / resetrun or rstOperation
d.pidPID set selected for inspectionRead current PID values from the selected controller; example values are not tuning recommendationsPID Setting
atAutotune execute/cancelat-2 100% AT; off cancelAdjustment

Reset and fault output checks

For the intended fail-safe design, both the software run/reset state and the physical heater enable interlock must be checked separately. The Omron supports a parameter called mv-r (MV at Reset), normally defaulting to 0.0% for the standard heating model, and an mv-e output on process-variable error. The values may be masked from the normal menus.

  1. Before live use, have the commissioning engineer confirm and document rtsm = stop, p-on = rst, and mv-r = 0.0%.
  2. Verify the programmed control output does not assert the SSR on reset, on power restoration or following a thermocouple fault. A controller parameter setting alone does not prove this.
  3. Confirm the independent Finder 13.61 enable circuit stays OFF after control-power restoration. Verify the behaviour on the actual hardware, not just the relay's general datasheet.

Omron H185 §§5-16-2 and 6-5: MV at Reset has precedence over MV at PV Error when in reset, and mv-r may be masked from the normal setting sequence. Do not change hidden advanced parameters without a documented commissioning plan.

Nominal ramp duration calculator

Estimate duration for a requested programmed setpoint ramp. This calculates the trajectory, not the measured heater response.

50 min ramp + 15 min soak = 65 min
Your setpoint profileUpdates when you change the values above
20 °C120 °C050 min65 minElapsed time (minutes) 2 °C/min

This graph visualises the commanded setpoint only, assuming a ramp starts from the temperature entered above. It does not estimate measured temperature or guarantee that the load can follow this rate.

Manufacturer source

Omron E5_C-T Programmable Digital Temperature Controllers User's Manual H185. Relevant chapters: 3 (keys and levels), 4-3 (input type), 4-7 (programmes), 4-9 (autotune), and programme settings in chapter 6.

This guide has not yet been checked key-for-key on the physical controller. Validate every step against the actual screen indications before releasing as the production SOP, especially after changing a protected or advanced setting.