Digital controller for refrigerating units
- 2 temperature probe inputs: PTC KTY81-121 (990 Ω @ 25 °C) or NTC 103AT-2 (10KΩ @ 25 °C)
Overall accuracy: ± 0,5 % fs + 1 digit - 1 digital input free voltage
- Mechanical keyboard: 7 multifunction keys
- Process outputs: Up to 4 relay outputs.
OUT1: 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 or Relay SPDT 16A-AC1, 6A-AC3 250VAC,1HP 250VAC, 1/2HP 125 VA
(Note 1) - Internal buzzer
- Power supply: 12... 24 VAC/DC, 100... 240 VAC ± 10% (50/60 Hz)
- 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:
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
File no. E206847
Ref. UL/CSA 60730-1-2-9