접촉기,회로 차단기,감지기,인코더,PLC,변환기
The DTV series is 델타’s dedicated PID valve position controller for electric valves. Unlike conventional temperature controllers for heating/cooling loads, it is specially designed to drive modulating electric actuators with forward/reverse rotation. Panel dimension: 48×96mm (1/8 에서).
모델 코드 정의
DTV: Delta Valve Controller series
4896: Panel size W48 × H96 mm
기음: 릴레이 출력 (C=Relay; R variant shares identical panel size with different contact rating/wiring)
Other models in this series include DTV9696C / DTV9696R (96×96 large panel)
주요 특징
- Valve-specialized PID: Equipped with two relay outputs for valve opening / valve closing to directly drive forward/reverse rotation of electric actuators. Real-time valve opening percentage display on panel. A/M auto/manual one-touch switching; valve opening can be fixed manually in manual mode.
- Multi-input support
열전대: 케이, 제이, 티, 이자형, N, 아르 자형, 에스, 비, 유, 엘, TXK
Platinum RTD: Pt100, JPt100
비슷한 물건: 4~~20mA, 0~~20mA, 0~~5V, 0~~10V
- 경보: 2 groups of alarm outputs with 17 alarm modes (상한/하한, 편차 경보, valve fault, 등.)
- 의사소통: RS485 내장, Modbus RTU/ASCII. Baud rate 2400~38400bps. Connectable to PLC and SCADA for PV/SV/valve opening and alarm status acquisition.
- 전원공급장치: 100~240VAC 50/60Hz
- 표시하다: Dual LED; PV in red, SV in green; ℃/℉ switchable
- Sampling speed: 0.4s for thermocouple/RTD; 0.15s for analog input
일반적인 응용 분야
Industrial kilns, heat exchangers, 공조, textile dyeing, hot water systems, closed-loop temperature control for electric regulating valves, constant temperature water supply/heating and furnace temperature regulation.
Difference from standard DTC/DTA temperature controllers
Standard temperature controllers: SSR/current output for heating loads.
DTV: Dual relay outputs to control forward/reverse motor of electric actuators, with valve-position PID dedicated to modulating valve opening.
Wiring Summary
아웃1: Valve open relay
아웃2: Valve close relay
ALM1/ALM2: Alarm relays
RS485: D+, D-, 모드버스 통신
Sensor input: 열전대 / Pt100 / analog signal
메모: DTV outputs are dry relay contacts only. They cannot power the actuator directly. The electric actuator requires external AC220V power supply.
일반적인 문제 해결
- Valve no movement: Check ON/OFF operation of OUT1/OUT2 relays; actuator power supply and internal limit switches; improper PID P/I/D parameters.
- Temperature oscillation: Perform PID auto-tuning; reduce proportional band P and increase integral time.
- 통신 실패: Verify RS485 A/B wiring, 역 주소, baud rate and parity.
- Abnormal PV reading: 센서 개방 회로, mismatched input type, reversed wiring polarity.
대체 선택
같은 시리즈: DTV4896R (same panel size, contact rating difference, check datasheet)
대안: If analog output (4~20mA) for electric valve is required, DTV cannot be used directly. Select DTA/DTB with analog output.
Delta DTV4896C Modbus RTU Register Map (Hex native address from manual)
규약: 모드버스 RTU / ASCII, 노예; 기능 코드: 03H Read Holding Registers, 06H Single Register Write, 01H Read Coils, 05H Force Single Coil
Unit definition: PV/SV = 0.1℃ / 0.1 scale; 예를 들어. 250 = 25.0℃; Valve opening unit = 0.1%
⚠️ PLC/HMI commonly uses 40001 offset: Physical address 1000H = HMI address 41001
Word Registers (03시간 / 06시간)
| 주소(Hex) | 이름 | R/W | 설명 |
| 1000시간 | PV Process Value | 아르 자형 | Real-time temperature; Fault codes: 8002H Data acquisition failure /8003H Sensor break /8004H Wrong input type /8006H ADC fault /8007H Memory fault |
| 1001시간 | SV Set Value | R/W | Temperature setpoint, 0.1 scale |
| 1002시간 | Range Upper Limit | 아르 자형 | Max input range |
| 1003시간 | Range Lower Limit | 아르 자형 | Min input range |
| 1004시간 | 센서 유형 | R/W | 0=K,1=J,2=T,3=E,4=N,5=R,6=S,7=B,8=L,9=U, 10=TXK,11=JPt100,12=Pt100,13=0~5V, 14=0~10V,15=0~20mA,16=4~20mA |
| 1005시간 | 제어 모드 | R/W | 0=PID；1=ON/OFF；2=Manual；3=Program PID；4=Ramp control |
| 1006시간 | Heat/Cool | R/W | 0 난방, 1 냉각 |
| 1009시간 | PB Proportional Band | R/W | 0.1~999.9 |
| 100아 | Ti Integral Time | R/W | 0~9999 |
| 100BH | Td Derivative Time | R/W | 0~9999 |
| 100CH | Integral Initial Value | R/W | 0~1000 (0.1% 단위) |
| 100DH | Proportional Compensation | R/W | Active when Ti=0, 0~1000 (0.1%) |
| 1012시간 | Output Valve Opening | R/W | 단위 0.1%; Writable only in manual mode, read-only in auto mode |
| 1018시간 | Valve Full Close to Full Open Time | R/W | Valve stroke time, 0.1~999.9s; critical parameter for systems without valve position feedback |
| 1019시간 | Valve Dead Band | R/W | 단위 0.1%, suppress frequent valve chattering |
| 101아 | Valve Feedback Upper Limit | R/W | For AI valve feedback: 0~1024 |
| 101BH | Valve Feedback Lower Limit | R/W | For AI valve feedback: 0~1024 |
| 101CH | PID Group Selection | R/W | 0~4; 4=Auto PID match |
| 101뭐라고 | Valve Output Upper Limit | R/W | 0.1% 단위, maximum opening limit |
| 101FH | Valve Output Lower Limit | R/W | 0.1% 단위, minimum opening limit |
| 1020시간 | ALM1 Alarm Mode | R/W | 17 alarm modes |
| 1021시간 | ALM2 Alarm Mode | R/W | 17 alarm modes |
| 1024시간 | ALM1 Upper Threshold | R/W | 경보 1 한계점 |
| 1025시간 | ALM1 Lower Threshold | R/W | 경보 1 한계점 |
| 1026시간 | ALM2 Upper Threshold | R/W | 경보 2 한계점 |
| 1027시간 | ALM2 Lower Threshold | R/W | 경보 2 한계점 |
| 102아 | Panel Status Word | 아르 자형 | Bit0:℉ Bit1:℃ Bit2:ALM2 Bit4:OUT1 Open Valve Bit5:OUT2 Close Valve Bit6:AT Auto-tuning Bit7:ALM1 |
| 102FH | 펌웨어 버전 | 아르 자형 | V1.00=0100H |
Bit Coils (01H Read / 05H Write Coil)
| 주소(Hex) | 이름 | R/W | 설명 |
| 0810시간 | Communication Write Enable | R/W | 0=Write disabled (공장 기본값), 1=Allow host PC parameter write |
| 0811시간 | Temperature Unit | R/W | 0=℉, 1=℃ |
| 0812시간 | Decimal Point | R/W | 0/1; Not valid for B/R/S thermocouple |
| 0813시간 | PID Auto-tuning AT | R/W | 0 멈추다, 1 Start AT |
| 0814시간 | Control Run/Stop | R/W | 0 멈추다, 1 달리다 |
| 0815시간 | Program Control End | R/W | 0 달리다, 1 끝 |
| 0816시간 | Program Pause | R/W | 0 달리다, 1 Pause |
| 0817시간 | Valve Position Feedback Enable | R/W | 0 No feedback, 1 AI valve feedback enabled |
| 0818시간 | Valve Feedback Auto-calibration | R/W | 0 멈추다, 1 Start stroke auto-calibration (for valves with feedback) |
Communication Basic Parameters (Set inside controller)
- Station address: 1~247
- 전송 속도: 2400 / 4800 / 9600 /19200 /38400
- 둥가: Fixed 8,N,1 (7E1/8O2 not supported)
- 규약: 모드버스 RTU (추천) / ASCII
Operation Examples (DVP PLC / HMI)
Read PV: 기능코드 03, start address `1000H`, read 1 Word
Modify SV: 기능코드 06, address `1001H`, write target value (예를 들어. 250 = 25.0℃)
Write valve opening in manual mode: First set `1005H` =2 (Manual mode), then write `1012H`; 예를 들어. 500 = 50.0% 열기
Start PID auto-tuning: 05H write `0813H`=ON
중요 사항
- Before host writing parameters, 0810H must be set to 1 (communication write enable) otherwise write commands will fail. Set back to 0 after commissioning to prevent accidental modification.
- DTV is a time-proportional valve position controller, NOT a 4~20mA analog output valve controller. Without valve feedback, valve opening is calculated based on【valve full-close to full-open time】.
- For HMI with 40001 offset: Physical address 1000H = decimal 4096 → HMI address 44097 (40001+4096)
Delta DTV4896C Fault Code List (PV register read via Modbus)
메모: The DTV panel does not display hex fault codes directly. Fault codes are abnormal values read from PV register `1000H` by host system. Panel typically shows —- or EEE with ALM LED lit.
| 오류 코드(Hex) | 설명 | 문제 해결 & 치료 |
| 8002시간 | Measurement not available / Input read timeout | 1. Check loose or broken sensor wiring |
| 2. Inspect terminal oxidation or poor contact | ||
| 3. Confirm sensor type parameter matches field sensor | ||
| 4. Power cycle controller to eliminate transient interference | ||
| 8003시간 | Sensor break (가장 일반적인) | ✅Thermocouple: Check polarity, 개방 회로; |
| ✅Pt100: One wire of 3-wire circuit broken; | ||
| ✅4~20mA analog: Loop open, no current; | ||
| Test continuity, replace sensor or repair wiring | ||
| 8004시간 | Wrong input type configuration | 1. Verify【Sensor Type】parameter (1004시간) matches actual sensor |
| 예: K-type sensor cannot be set to Pt100; 4~20mA cannot be set as thermocouple | ||
| 2. 아날로그 입력: Internal jumper must be switched to current mode; wrong jumper will trigger 8004H | ||
| 8006시간 | ADC analog-to-digital hardware fault | 1. 다음 시간 동안 전원 끄기 5 minutes then restart to clear transient error |
| 2. Disconnect sensor, if fault persists with empty input terminals → ADC hardware damage, replace DTV unit | ||
| 8007시간 | Memory fault (EEPROM error) | 1. Try factory reset and reload parameters |
| 2. Power cycle; if fault remains: storage chip damaged, replace controller |
Local Panel Fault Indication (No Modbus required, visual check)
- PV display —-: 센서 개방 회로, corresponds to 8003H
- PV display EEE: Input out of range, sensor short circuit or wrong input type (8004시간)
- ALM LED ON but PV reading normal: Not input hardware fault. ALM1/ALM2 process alarm triggered (temperature limit, deviation or valve fault). Enter alarm menu to check alarm mode and threshold.
Valve Control Functional Faults (Not the above hardware fault codes, DTV specific)
DTV valve controller, valve no movement / frequent chattering, PV reading normal but abnormal valve action, not classified as 80xx hardware faults:
- Valve no movement
Check ON/OFF of OUT1/OUT2 relay contacts with multimeter
Verify actuator AC220V supply and internal limit switches
매개변수:【Valve full close to full open time】1018H incorrectly set to zero will disable valve action
- Valve chattering / frequent pulsing
Increase valve dead band (1019시간, 단위 0.1%)
PID proportional band PB too small (overly aggressive P gain) causing oscillation; run AT auto-tuning
- Mismatch between displayed valve opening and actual valve position (with AI feedback)
Enable valve feedback coil (0817H=1), start valve feedback auto-calibration (0818H=1), redefine stroke upper/lower limit 101AH/101BH
General Troubleshooting Workflow (Recommended sequence)
- Power cycle to eliminate transient interference
- Verify sensor wiring and sensor integrity
- Confirm input type setting and hardware jumper (analog input must set jumper correctly)
- Read PV register via host to confirm fault code
- Software fault: Factory reset and reconfigure parameters; 하드웨어 결함 (8006/8007): Replace controller directly
Important Distinction for Alarms
80xx codes = Measurement input / hardware faults (PV cannot be read)
ALM1/ALM2 alarms = Process alarms (temperature limit, 편차, valve fault, PV acquisition normal). Do not confuse the two.
- Model Coding Rule for full DTV series
DTV + 패널 치수 + 출력 유형
- Panel dimension (2 옵션)
4896: 48×96mm (1/8 에서, your current model)
9696: 96×96mm (1/4 에서)
- 접미사 코드 (Hardware output)
기음: 릴레이 출력 (OUT1 open, OUT2 close, 듀얼 릴레이, 가장 일반적인, DTV4896C)
아르 자형: Basic relay (single channel valve relay)
엘: 선형 전류 출력 (4~20mA for analog electric actuators)
다섯: Voltage pulse output (solid state pulse drive)
Unified power: AC100~240V; all models equipped with RS485 Modbus RTU/ASCII, dual alarm and valve PID control.
- Complete DTV Model List (Mainstream available models)
1）48×96mm (DTV4896 series, slim vertical)
- DTV4896C: Dual relay output (열려 있는 + Close valve), dedicated for electric valves (main model)
- DTV4896R: Single relay output
- DTV4896L: 4~20mA linear current output
- DTV4896V: Voltage pulse solid-state output
2）96×96mm (DTV9696 series, square large display)
- DTV9696C: Dual relay open/close valve (same logic as DTV4896C, only larger panel)
- DTV9696R: Single relay
- DTV9696L: 4~20mA linear current output
- DTV9696V: Pulse voltage output
Universal input across all series: K/J/T/E/N/R/S/B/L/U/TXK thermocouple, Pt100/JPt100 RTD, 0~~5V/0~~10V/4~20mA analog input.
- Model Suffix Comparison
| 접미사 | 출력 유형 | 애플리케이션 | Matches your DTV4896C |
| 기음 | Dual relay (OUT1 Open, OUT2 Close) | Electric actuators with forward/reverse rotation | ✅ Your model |
| 아르 자형 | Single relay | Single direction valve, simple on-off control | Alternative spare |
| 엘 | 4~20mA analog signal | Modulating analog electric valves | Analog valve control |
| 다섯 | Voltage pulse | SSR solid state drive, contactless frequent operation | High frequency on-off control |
- 더 이상 사용되지 않음 / Legacy Notes
DTV series only has 4896 그리고 9696 two panel sizes, no 4848 또는 7272 variants;
No derivatives such as DTV4896D, DTV4896E;
Communication registers, fault codes and parameter menus: C/R/L/V share identical firmware logic, only hardware output differs.
