QD

1/4 DIN Dual loop controller

- Panel mount controller 96 x 96 mm
- Up to 2 Configurable inputs
- 3 Digital inputs
- Up to 4 digital outputs
- Up to 2 analogue outputs
- 1 Loop with single or dual output
- 2 Indipendent loops
- Cascade (1 Master + 1 Slave)
- Ratio (direct / inverse)
- ON/OFF control
- PID single action or double action
  (Heat/Cool) also with Fuzzy logic
- Floating servomotor
- Auto/Man station<BR>
  with bumpless action
- Remote setpoint
- 3 memorized setpoints
- RS 485 ModBus RTU port (optional)
- 4 green display sections
      1 (PV) 4 Digits h 14 mm
      1 (MW) 3 Digits h 8 mm
      1 (SP) 4 Digits h 8 mm
      1 (W) 2 Digit h 8 mm

Process inputs:

1 Universal input

- Thermocouples:
    L, J, T, K, S, R, B, N, E, W (IEC 854)
- PT100 (IEC 751)
with selection °C/°F/°K
- Voltage (V):  0/1...5 V, 0...10V
- Voltage (mV): 0...20 mV, 0...50 mV
- Current (mA): 0/4...20 mA
Accuracy :
 0.2% ±1 digit (probes)
 0.1% ±1 digit (mA or mV)

Remote setpoint input

- Thermocouples:
    L, J, T, K, S, R, B, N, E, W (IEC 854)
- PT100 (IEC 751)
with selection °C/°F/°K
- Voltage (V):  0/1...5 V, 0...10V
- Voltage (mV): 0...20 mV, 0...50 mV
- Current (mA): 0/4...20 mA
Accuracy :
  0.2% ±1 digit (probes)
  0.1% ±1 digit (mA or mV)

3 digital inputs

- NPN

Keyboard

Mechanical: 6 multifunction keys

Process outputs

up to 2 analogue outputs:

- For process control
- For PV/SP retransmission
- Voltage (V): 0/1...5V, 0...10 V
- Current (mA): 0/4...20 mA

Up to 4 Digital outputs:

Y1(note1)
- 2 RELAY SPST-NO, 5A/250Vac
- SSR Drive 0...22Vdc, 20 mA Max
Y2/Y3
- 2 RELAY SPST-NO, 5A/250Vac

Power supply:

- 16...28VAC 50/60 Hz or 20...30VDC
- 100...240VAC
Transmitter power supply: 24 Vdc ±20%

Functions

- ON/OFF control
- PID single action or double action (Heat/Cool)
  also available with Fuzzy logic
- Floating servomotor
- Auto/Man station with bumpless action
- Remote setpoint
- 3 memorized setpoints
- 1 Loop with single or dual output
- 2 Indipendent loops
- Cascade (1 Master + 1 Slave)
- Ratio (direct / inverse)

Autotuning

- Autotuning with natural frequency

Alarms

- Up to 4 configurable alarms

Communication and programming:

Interfaces

- RS 485 port with ModBus RTU and J-bus (slave) protocols (optional)

Programming/configuration tools:

- Easy to use front interface for configuration

Installation

Mounting method: panel mount
Case dimensions: 96 x 96 mm(1/4 DIN )

Connections

Signals connection
24 poles 3.5 mm² screws
6 poles 3.5 mm² golden screws(for probe signals)
Protection factor: IP 54 front protection

Display and indicators

4 green display sections
      1 (PV) 4 Digits h 14 mm
      1 (MW) 3 Digits h 8 mm
      1 (SP) 4 Digits h 8 mm
      1 (W) 2 Digit h 8 mm

Connectable to:

- SCADA for monitoring, traceability and remote management
- DX and DY gateways for remote monitoring

Used for:

Simple dual loop applications in the process industry

Notes

1 ) In case Y1 is used as analogue output these contact become Y4 and Y5 alarm outputs