Setup notes, parameter references, input ranges and wiring diagrams for CD101, CD401, CD501, CD701 and CD901 style PID temperature controllers.
The CD101/CD901 controller family is an older, discontinued style. This page keeps the manual notes for existing installations, while the current DTXG-S controller is the product to review first for new kiln, oven and furnace replacement work.
The DTXG-S gives you a current 1/16 DIN PID controller with SSR output, universal input for common thermocouples and RTD sensors, Fahrenheit/Celsius display, PID or ON/OFF control, auto-tuning and alarm functions. For most new builds, that is the practical upgrade path from the older CD101/CD901 style controller.
These plug-and-play controller boxes include the PID controller used above, plus the enclosure, breaker and sensor package shown on each product page.
A ready-to-go upgrade for shoppers using the CD101 manual to rebuild a controller. It packages the PID controller inside a plug and play box with a circuit breaker, SSR, alarm light/buzzer and 6 in K-type probe, reducing the loose wiring work needed for a basic panel controller.
Choose this version when the older controller was part of a timed kiln or oven process. It adds the T1/T2 timer to the plug and play PID box, with breaker, SSR, enclosure and 6 in K-type probe already packaged together for a cleaner replacement path.
CD101, CD401, CD501, CD701, CD901 and related panel PID temperature controllers.
PID control, ON/OFF control, auto-tuning, alarm output setup, thermocouple and RTD input configuration.
Kilns, ovens, furnaces, heat treating equipment and other systems that need controlled heater output.
| Specification | Original Manual Value | Why It Matters |
|---|---|---|
| Input support | Thermocouple, RTD, standard current and voltage signals | Match the controller input code to the sensor or process signal before running the load. |
| Measurement accuracy | +/- 0.5% FS; cold junction compensation +/- 2°C | Use a separate reference thermometer if the process requires tighter calibration. |
| Display range | PV/SV display: -1999 to +9999 | The usable range still depends on the selected input code and limiter settings. |
| Control modes | PID, ON/OFF when P is 0, auto setting / auto-tuning | Most heater applications should use PID after the controller has been tuned. |
| Environment | 0-50°C, 0-85% RH, no corrosive gas | Keep the controller in a clean panel/enclosure away from heat, moisture and vibration. |
Finish all power, input, sensor, output and alarm wiring before energizing the controller. Do not use the controller in flammable or explosive gas environments.
At startup the controller briefly shows the selected input type and range before returning to the PV/SV display. If the sensor type is wrong, correct the input code before controlling a heater.
From the normal PV/SV display, press SET until SV flashes. Use the shift key to choose the digit, then use the up/down keys to set the required temperature. Press SET again to return.
After the input, output and set value are correct, hold SET for parameter mode and set AT to 1. The controller calculates PID values and returns AT to 0 when tuning ends or is suspended.
Use LCK after setup to prevent accidental changes. Lock levels still let locked values be monitored on the display.
If the display shows an input fault, power down and check sensor wiring, polarity and the selected input range before continuing.
| Label | Manual Meaning | Use On This Controller |
|---|---|---|
| PV | Measurement value / mode display value | Shows the process temperature or the parameter symbol during setup. |
| SV | Setting value / mode display value | Shows the target temperature or the selected parameter value. |
| AT | PID auto calculation indicator lamp | Indicates auto-tuning activity. |
| OUT1 / OUT2 | Output indicator lamps | Show when the control outputs are active. |
| ALM1 / ALM2 | Alarm indicator lamps | Show alarm output status when alarm functions are configured. |
| SET | Setting mode key | Press to enter SV setting; hold for parameter setting; press again to save/cycle. |
| Shift / R/S | Shift key | Moves the active digit while editing values. Used with SET to enter advanced configuration after unlocking. |
| Up / Down | Value keys | Increase or decrease the selected digit/value. |
From the normal PV/SV display, hold SET for about three seconds to enter parameter setting mode. Press SET to cycle through the available symbols. The controller returns to the normal display after about 30 seconds without key operation.
| Symbol | Manual Name | What It Changes | Setting Range | Typical Factory Value |
|---|---|---|---|---|
| ALM1 / ALM2 | Alarm Set Value | Alarm thresholds for deviation, process or SV alarms. | -1999 to +9999°C or -199.9 to +999.9°C | 50 |
| AT | Auto-Tuning | Starts or cancels PID auto-tuning. | 0: end/suspend; 1: start | 0 |
| ST | Self-Tuning | Turns self-tuning on or off where supported by the ordered model. | 0: suspend; 1: start | 0 |
| P | Proportional Band | PID proportional action. Setting P to 0 changes control to ON/OFF action. | 1 to span or 9999°C; 0 for ON/OFF | 30 |
| I | Integral Time | Integral action used to remove offset in proportional control. | 1 to 3600 seconds; 0 disables integral action | 240 |
| D | Derivative Time | Derivative action used to reduce ripple and improve stability. | 1 to 3600 seconds; 0 disables derivative action | 60 |
| Ar | Reference Value | Set automatically after auto-tuning; not normally set by hand. | 0 to 100% | 25 |
| T | Heat-Side Proportional Cycle | Control output cycle time for the heating side. | 1 to 100 seconds | 20 seconds for relay; 2 seconds for voltage pulse / triac trigger |
| Pc | Cool-Side Proportional Band | Cool-side proportional band for heat/cool PID action. | 1 to 1000% of heat-side proportional band | 100 |
| db | Dead-Band | Gap between heat-side and cool-side proportional bands. | -10 to +10°C or -10.0 to +10.0°C | 0 |
| t | Cool-Side Proportional Cycle | Control output cycle time for the cooling side. | 1 to 100 seconds | 20 |
| Pb | PV Bias | Sensor correction added to measured PV. | -1999 to +9999°C or -199.9 to +999.9°C | 0 |
| LCK | Set Data Lock | Controls which SV, alarm and parameter values can be changed. | 0000 to 0111 lock levels | 0000 |
| LCK Value | What Can Be Changed |
|---|---|
| 0000 | SV and parameters can be set. |
| 0001 | Only SV and alarms ALM1 / ALM2 can be set. |
| 0010 | Only setting items other than ALM1 / ALM2 can be set. |
| 0011 | Only setting items other than SV can be set. |
| 0100 | Only SV can be set. |
| 0101 | Only ALM1 / ALM2 can be set. |
| 0110 | Only setting items other than SV and ALM1 / ALM2 can be set. |
| 0111 | SV and parameters cannot be set; values can only be monitored. |
Use this mode only when the controller input type, alarm behavior, control direction or output behavior must be changed. In parameter mode, set LCK to 1000, press SET to confirm, then hold SET and Shift / R/S together for about three seconds until the PV display shows Cod.
| Area | Original Manual Options | Use |
|---|---|---|
| Cod = 0000 input type | 0000 K, 0001 J, 0010 L, 0011 E, 0100 N, 0101 T, 0110 U, 0111 R, 1000 S, 1001 B, 1010 W5Re/W26Re, 1011 P12, 1100 PT100, 1101 JPT100 | Select the sensor family before choosing the range code. |
| Alarm type | 000 no alarm, 001 upper-limit bias, 010 upper/lower-limit bias, 011 process high, 101 lower-limit bias, 110 alarm in area, 111 process low | Choose what condition drives ALM1 or ALM2. |
| Standby alarm | 0 no standby alarm, 1 standby alarm enabled | Prevents selected alarm action until the process has first entered the non-alarm region. |
| Control direction | 0 forward operation / refrigeration, 1 reverse operation / heating | Most heater/kiln/oven applications use reverse operation. |
| Main output type | 0 time-scale output, 1 continuous output 4-20mA | Use time-scale output for relay, SSR pulse or triac-style control. |
| Alarm excitation | 0 excitation alarming, 1 non-excitation alarming | Sets alarm relay behavior for ALM1 and ALM2. |
| Cod = 0001 limits | Upper limit, lower limit, decimal point 0-3, main output dead band, ALM1/ALM2 dead band, digital filtering 0-100 | Use these to limit operator setpoints, set hysteresis/dead band and smooth noisy readings. |
| Code Area | Common Values In The Manual |
|---|---|
| Control action | F reverse PID/autocalculation, D forward PID/autocalculation, W heat/cool water cooling, A heat/cool air cooling. |
| OUT1 | M relay contact, 8 DC 4-20mA current, V voltage pulse, G triac trigger, T triac. |
| OUT2 | No symbol for F/D control, M relay contact, V voltage pulse, T triac. |
| Alarm codes | N none; A/B/C/D deviation or area alarms; E/F/G standby deviation alarms; H/J process high/low; K/L standby process high/low. |
| Communication | N no communication, 5 RS-485 two-wire system. |
If the meter indicates an internal fault, remove it from service and send it for repair.
Check for disconnected input wiring, reversed polarity, wrong input type or a process value above the configured range.
Check the input signal and sensor wiring for reversed polarity, disconnected leads or a value below the configured range.
The original manual lists thermocouple, RTD, voltage and current input codes. Confirm the selected code matches your sensor before running the controller. Range limits can also be restricted in advanced configuration mode.
| Input | Code | Range | Code | Range | Code | Range |
|---|---|---|---|---|---|---|
| K | K01 | 0-200°C | K02 | 0-400°C | K03 | 0-600°C |
| K04 | 0-800°C | K05 | 0-1000°C | K06 | 0-1200°C | |
| K07 | 0-1372°C | K13 | 0-100°C | K14 | 0-300°C | |
| J | J01 | 0-200°C | J02 | 0-400°C | J03 | 0-600°C |
| J04 | 0-800°C | J05 | 0-1000°C | J06 | 0-1200°C | |
| R *1 | R01 | 0-1600°C | R02 | 0-1769°C | R04 | 0-1350°C |
| S *1 | S01 | 0-1600°C | S02 | 0-1769°C | ||
| B *1 | B01 | 400-1800°C | B02 | 0-1769°C | ||
| E | E01 | 0-800°C | E02 | 0-1000°C | ||
| N | N01 | 0-1200°C | N02 | 0-1300°C | ||
| T *2 | T01 | 0-350°C | T02 | -199.9-100.0°C | T03 | -199.9-200.0°C |
| T04 | -199.9-400.0°C |
| Input | Code | Range | Code | Range | Code | Range |
|---|---|---|---|---|---|---|
| PT100 | D01 | -199.9-649.0°C | D02 | -199.9-200.0°C | D03 | -199.9-50.0°C |
| D04 | -100-100°C | D05 | -100-200°C | D06 | 0-50°C | |
| D07 | 0-100°C | D08 | 0-200°C | D09 | 0-300°C | |
| D10 | 0-500°C | |||||
| JPT100 | P01 | -199.9-649.0°C | P02 | -199.9-200.0°C | P03 | -199.9-50.0°C |
| P04 | -100-100°C | P05 | -100-200°C | P06 | 0-50°C | |
| P07 | 0-100°C | P08 | 0-200°C | P09 | 0-300°C | |
| P10 | 0-500°C |
| Input | Code | Displayed Range | Manual Note |
|---|---|---|---|
| 0-5V | 401 | 0.0-100°C | |
| 1-5V | 601 | 0.0-100°C | |
| 0-20mA | 701 | 0.0-100°C | *3 |
| 4-20mA | 801 | 0.0-100°C | *3 |
Use the wiring diagram printed on your controller case as the final authority. These diagrams are retained from the original PID-CD-101 manual for reference.
| Model | A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|
| CD101 | 48 | 48 | 10 | 100 | 45 | 45 | 80 | 80 |
| CD401 | 96 | 48 | 10 | 100 | 92 | 45 | 116 | 80 |
| CD501 | 48 | 96 | 10 | 100 | 45 | 92 | 80 | 116 |
| CD701 | 72 | 72 | 10 | 100 | 68 | 68 | 96 | 96 |
| CD901 | 96 | 96 | 10 | 100 | 92 | 92 | 116 | 116 |
External SSR's are capable of handling 40 AMPS
External SSR's are capable of handling 40 AMPS
Terminals 4 & 6 are for NO and 4 & 5 are for NC
This page keeps the main setup information readable on mobile and gives a path to a current product. The original PDF remains available for now.
Original PID-CD-101 PDF