TLW24 Digital controller for refrigerating units

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Features

  • Panel mount thermostat 185 x 38 mm
  • INOX front frame, optional
  • Up to 2 Configurable probe inputs
  • 1 Digital input
  • Up to 4 relay outputs
  • Several defrost activation and defrost methods
  • 1 display, 4 digits
    • Red and blue colour
 
Specifications

Process inputs:

2 temperature probe inputs

- PTC KTY81-121 (990 Ω @ 25 °C)
- NTC 103AT-2 (10KΩ @ 25 °C)
Overall accuracy: ± 0,5 % fs + 1 digit

1 digital input

- Free Voltage

Keyboard

Mechanical keyboard:
7 multifunction keys

Process outputs

Up to 4 relay outputs

OUT1
- 1 relay SPST-NO 20A-AC1, 15A-AC3 /250VAC, 2HP 250VAC, 1 HP 125VAC
OUT2
- Relay SPDT 8A-AC1, 3A-AC3 250 VAC, 1/2HP 250 VAC, 1/3 HP 125 VAC
OUT3
- Relay SPST-NO 8A-AC1, 3A-AC3 250 VAC, 1/2HP 250 VAC, 1/3 HP 125 VAC
OUT4
- Relay SPST-NO 16A-AC1, 6A-AC3 250VAC,1HP 250VAC, 1/2HP 125 VA
- Relay SPDT 16A-AC1, 6A-AC3 250VAC,1HP 250VAC, 1/2HP 125 VA
(Note 1)
- Internal buzzer

Power supply:

- 100… 240 Vac (50/60 Hz) ± 10%

Functions:

- Stand-by mode
- ON/OFF control
- Start-up delay
- Room probe peack values memorization
- Compressor protection timer

Defrost

Defrost start/stop:
- Manual
- Time intervals
Defrost methods:
- By compressor stop
- By electrical heater
- By hot gas
- By cycle reverse
Evaporator Fan Control Room Light control

Alarms

Up to 4 different kind of configurable alarms:
- Probe errors
- Temperature thresholds: absolute or relative
- External alarm
- Door alarm

Communication and programming:

Interfaces

Communication on TTL port to: 
- Universal programming key
- Remote display
- RS 485 serial interface adapter TLCNV

Programming/configuration tools:

- Easy to use front interface for configuration
- Configuration software available for PC

Installation:

Mounting method: panel mount
Case dimensions: 185 x 38 mm, depth 84 mm

Connections

Signals connection
- Faston 6.3 mm (Power supply and outputs)
- 2.5 mm² screw terminals block (inputs)

Display and indicators

1 display line, 4 digit, h 12 mm, red or blue colour
3 LED Bargraph + 6 indicating LEDs

Connectable to:

- Programming key A01
    for PC connection, backup and other functions
- RS 485 serial interface adapter TLCNV

Notes

1) 20 A Max. for common power supply

Contact Us

“Industrial Technical Services is a single source Instrumentation and Automation company. We provide certified calibrations, PLC programming, custom controls and Panels”.

 

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