DCP31 Programmable Heat Treating Controller
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Programmable Controller The DigitroniK DCP31 is a high-function programmable controller supporting up to 19 program patterns to which thermocouple sig- nals, resistance temperature detector (RTD) signals, DC voltages The DCP31 supports extensive digital I/O functions including 3 event outputs, 5 time events (optional) and 12 external switch inputs (8 optional). RS-485 communications and two auxiliary outputs can also be added on as options. •Accuracy of ±0.1% FS. Highly accurate and high-speed sampling •Any input type can be selected by console key operation. •A maximum of 19 program patterns can be stored and up to 30 segments can be programmed to each pattern. •Programs can be loaded to the controller by a personal computer loader, eliminating troublesome console operation. • Provided with 3 event outputs for notifying PV, deviation, control- ler mode or other states. • 12 external switch inputs (8 optional) allow remote selection of • Up to eight frequently changed parameter setups can be regis- •Supports any power supply within range 90 to 264 Vac. •Wide range of optional functions enables use in an extensive * 5 time event outputs * 8 external switch inputs * Maximum 2 auxiliary outputs (1 only on 2G and heat-cool Basic Function Blocks of DCP31 • Display selection » Parameter setup • Program setup » Resistance temperature • Root extraction • Input bias table approxi- 4 external switch inputs 8 external switch inputs » Forward/reverse action Motor feedback Power Supply 'Voltage • Heat-cool 5 time event outputs Loader communi- • Output change

I Specifications Number of programs Number of segments RAMP-X system: Set by set points (SP) and time. Segment time 0 to 99 hoursmin,minutes,99 min 59 s (time unit selectable) h 59 59 or 0 to or 0 to 99 minutes 59 seconds (time unit selectable) Events (3) Set operating point. Time events (5) Set ON and OFF times. PID set No. Set 0 to 8. (Set 0 for continuation of previous segment.) (Set 0 to 4 on heat/cool models.) G.Soak width 0 to 1000U. PV start Sets program ON/OFF. Cycle Sets program count 0 to 9999. Pattern link Sets program No.0 to 19 (0: no link) Tag Sets 8 alphanumerics for each...

Control method Model Nos. Control mode Output modes PID auto-tuning Indication/ programmer Controller Output rating Proportional band (P) Program control or constant-value control selectable 0D 2G 5G Time-proporTime-proporti tional PID onal PID Position-proPosition-proportional PID portional PID 1a1b relays Contact output M/M drive relays Current (4 to 20 Voltage output Current (4 to 20 Contact output mA DC) output mA dc) output Continuous PID 6D 3D Time-proportional PID 2-stage (heat-cool) PID 1a1b relay contact output + 1a1b relay contact output Automatic setting of PID value by limit...

Event outputs 1, 2 Contact type: 1a relay contact Contact type: 1a relay contact Electrical rating: 240 Vac, 30 Vdc, 1 A resistive load Electrical rating: 240 VAC, 30 VDC,1 A resistive load Life: 100,000 operations (at rating) Life: 100,000 operations (at rating) Min. Min. switching voltage: 10 V voltage: 10 V Min. Min. switching current: 10 mA current: 10 mA Event output 3 Contact type: 1a1b relay contact 1a1b relay contact Electrical rating: 240 VAC, 30 VDC, 2 A resistive load 240 Vac, Vdc, 2 A resistive Life: 100,000 operations (at rating) 100,000 operations (at rating) Min. switching...

Allowable transient power loss 20 ms max. (under operating conditions) Insulation resistance Min. 20 MΩ across power terminal ➀ or ➁ and GND terminal ➂ (using a 500 VAC megger) Vac megger) Dielectric strength 1500 VAC 50/60 Hz for 1 minute 1500 Vac 50/60 Hz for 1 minute between power terminal and GND terminal terminal and GND terminal 1500 VAC 50/60 Hz for 1 minute 1500 Vac 50/60 Hz for 1 minute between relay output and GND terminal output and GND terminal 500 VAC 50/60 Hz for 1 minute 500 Vac 50/60 Hz for 1 minute between non-power terminal and GND terminal non-power terminal and GND...

Table 1. Input Types and Ranges (selectable in setup) Readout Accuracy (items out-side of ±0.1% FS • Golden iron chromel thermocouple: • 2-digit range past decimal point by RTD The unit of code Z06 is Kelvin (K). • The lower limit readout of code B18 is • The lower limit readout (°C) of codes K44, • The lower limit readout (°C) of codes F50, • The upper limit readout (°C) of codes F01 • The PV lower limit alarm does not occur with PR40-20 (Johnson Matthey Data) PLII (Engelhard Industries Data (IPTS68)) Ni-NiMo (General Electric Data) Gold iron chromel (Hayashidenko Data) Resistance...

■ Model Selection Guide Using the soft dust-proof cover Using the hard dust-proof cover Soft dust-proof cover set (sold separately) 81446087-001 Hard dust-proof cover set (sold separately) 81446083-001 Terminal cover set (sold separately) 81446084-001- Close horizontal mounting Back plate Add-on terminal base

WIRING PRECAUTIONS 1. Isolating Inputs and Outputs inside the Controller Solid lines-show isolated items. Dotted lines----------show non-isolated items. Loader jack (full multiple-input PV supported) 12 external switch inputs (relay, current, voltage output) (relay, current, voltage output, auxiliary output) (auxiliary output) Time event outputs 1 to 5 (open-collector output) Loader jack (full multiple-input PV supported) 12 external switch inputs (control output 1a relay x 2) Motor feedback input (auxiliary output) Time event outputs 1 to 5 (open-collector output) 2. Noise Countermeasures...

3. Noise Generating Sources and Countermeasures Generally, the following generate electrical noise: Relays and contacts, solenoid coils, solenoid valves, power lines (in particular, 90 VAC min.), induction loads, inverters, motor commutators, phase angle control SCR, wireless communications equipment, welding equipment, high-voltage ignition equipmen Shielded GND 3 (1) Fast-rising noise CR filters are effective in countering fast-rising noise. Recommended CR filter: Yamatake Corporation Model No. 81446365-001 100Ω max. GND terminal plate (earth bar) Shielded cable DCP31 (2) Noise with a...