Digital controller for refrigerating units
- Panel mount 96 x 50 mm
- 2 temperature probe inputs
- Up to 3 relay outputs
- Internal buzzer for alarm indication
- Mechanical (external) or "Sensitive Touch" keyboard
- Several defrost activation and defrost methods
- 1 display, 2 digits, h 31 mm, red or blue colour
Process inputs:
2 temperature probe inputs
- PTC KTY81-121 (990 Ω @ 25 °C)
- NTC 103AT-2 (10KΩ @ 25 °C)
Measuring ranges:
- PTC: -50...99 °C / -58 ... 99 °F
- NTC: -50...99 °C / -58...99 °F
2 digital inputs
- Free Voltage
Keyboard
- Mechanical (external)
- Sensitive Touch
4 multifunction keys
Process outputs
Up to 3 relay outputs:
(Note 1)
OUT1
- 1 relay SPST-NO 16 A-AC1,6 A-AC3 / 250 VAC
OUT2
- 1 Relay SPST-NO (8 A-AC1, 3 A-AC3/ 250 VAC)
OUT3
- RELAY SPST-NO, 5A-AC1
- Internal buzzer for alarm indication
Power supply:
- 100...240 VAC ±10%
Functions
- Stand-By mode
- ON/OFF control
- Start-up delay
- Compressor protection timer
Defrost
Defrost start/stop:
- Time based
- Temperature driven
Defrost methods:
- By compressor stop
- By electrical heater
- By hot gas
- By cycle reverse
Evaporator Fan Control
Alarms
Up to 4 different kind of configurable alarms:
- Probe errors
- Temperature thresholds: absolute or relative
- External alarm
- Door alarm
- Power fail alarm
Main voltage failure alarm (power fail alarm) with outputs disable (optional)
Communication and programming:
Interfaces
Communication on TTL port to:
- Universal programming key
- Remote display
- Remote programming keyboard TLBTA (optional)
Installation
Mounting method: panel mount
Case dimensions: 96 x50 mm, depth 60 mm
Connections
- 2,5 mm² screw terminals block
- 2,5 mm² extractable screw terminals block
(optional and only for inputs)(Note 1)
- IP40 front frame protection, with gasket
Display and indicators
1 display, 2 digits, h 31 mm, red or blue colour
3 indicating LEDs
Connectable to:
- Remote programming keyboard TLBTA
Notes
1) 10 A max. for extractable terminal block model