Nemox Freezy 5 Руководство по эксплуатации онлайн [25/33] 772911

Degree of protection of faceplate: IP 65.

Connections: screw terminals, (power supply, inputs and outputs), 6-pole connector

(serial port upon request); pull-out terminals (power supply, inputs and outputs) upon

request.

Workplace temperature: from 0 to 55°C (10….. 90% humidity without

condensation).

Power supply: 230 VCA, 50/60 Hz, 3 VA (approximately); 115 VCA upon request.

Alarm buzzer: incorporated.

Temperature reading inputs: 2 (chiller compartment probe and needle probe) per

probe

PTC/NTC.

Digital inputs: 1 (microport / multipurpose) per NO/NC contact (dry contact, 5 V1

mA).

Temperature reading range: from –50°C to 150 °C for PTC probe, -40°C to 105°C

for NTC probe.

Resolution: 0.1 °C71 °C/1 °F

Digital outputs: 2 relays

• compressor relay: 16 A res. @ 250 VCA (contact NO) for versions 12

VCA/CC and 12-24 VCA/CC; 8 A res. @ 250 VCA otherwise

• relay defrosting / evaporator fan: 8 A res. @ 250 VCA (change-over

contact).

Maximum allowable current across loads is 10 A.

Serial port: port for communicating with the monitoring system (through a serial

interface, via TTL – transistor to transistor logic – with MODBUS communication

protocol) or with programming key; available upon request.

9 WORKING SETPOINT AND CONFIGURATION PARAMETERS

9.1 First level configuration parameters

PARAM MIN. MAX. U.M. DEF. MAIN REGULATOR

0.1 15.0 °C/°F(1) 2.0 Differential for parameters r7,

r8, r9 and rA

1 600 Min. 90 time for positive temperature

timer controlled blast chilling

1 600 Min. 240 time for negative temperature

timer controlled blast chilling

-99.0 -99.0 °C/°F(1) 3.0 end of chilling temperature for

positive temperature chilling

(temperature detected by the

needle probe)

-99.0 -99.0 °C/°F(1) -18 end of chilling temperature for