Osaka Smart Box - Page 5

OSAKA – SMART BOX – Simple Manual – v1.1 – Page 5
Pt 1000 analog inputs (1 KΩ @ 0 °C, 32 °F)
Working range: from -99 to 150 ºC (from -99 to 300 ºF).
Accuracy: ±0.5 % of the full-scale.
Resolution: 0.1 ºC (1 ºF).
Protection: None.
4-20 mA analog inputs
Input’s resistance: ≤ 200 Ω.
Accuracy: ±0.5 % of the full-scale.
Resolution: 0.01 mA.
Protection: None; the maximum current allowed for this
input is 25 mA.
Digital inputs: 3 inputs that can be configured by parameter
by usually open or usually closed contact (open port,
configurable and configurable 2)
5 VDC digital inputs, 2 mA (voltage free)
Power supply: None.
Protection: None.
Digital outputs: up to 6 inputs:
2 SPST electromechanical relays of 30 A resistant to 250
VAC (compressor and fan of the evaporator).
- 2 SPST electromechanical relays of 16 A resistant to 250
VAC (defrosting and ambient light).
- 1 SPST electromechanical relay of 8A resistant to
250VAC (configurable by parameter for anti-fogging
resistance, auxiliary, alarm, port’s resistance, resistants for
the operation in a dead zone, condenser’s fan, compressor
2, defrosting 2, evaporator’s fan 2, liquid valve, on/stand-
by or locked man; configuration by default, condenser0s
fan.
- 1 SPST electromechanical relay of 8A resistant to
250VAC (configurable by parameter for anti-fogging
resistance, auxiliary, alarm, port’s resistance, resistants for
the operation in a dead zone, condenser’s fan, compressor
2, defrosting 2, evaporator’s fan 2, liquid valve, on/stand-
by or locked man; configuration by default, condenser0s
fan.
The device guarantees a reinforced isolation in between
each connector of the digital outputs and the rest of the parts
of the device.
Controller for unipolar stepper electronic expansion
valves: 12 VDC, 260 mA max.
Type 1 or type 2 actions: Type 1.
Additional features of the type 1 or type 2 action: C.
Display: 3 digits display with decimal point and operation
icons.
Communication ports: 1 MODBUS RS-485 port (with
MODBUS communication slave protocol).
Signal and Alarm buzzer: incorporated.