Full Gauge

PENTA III

PENTA Series • Refrigeration Controller

Type Refrigeration

Application Large Cold Room

Probe Inputs 4

Relay Outputs 5

Communication RS485 Modbus RTU/TCP

Panel Size 96x48 mm

R1 Compressor

R2 Defrost

R3 Fan

R4 Aux 1

R5 Aux 2

Five-output controller for complex refrigeration systems

Technical Specifications

Relay Outputs	5
Relay Rating	16A/250VAC (x2), 8A (x3)

Operating Temp	-10 to 50°C
Storage Temp	-20 to 60°C

Terminal	Function	Type	Wire Color
L	Power L	Input	brown
N	Power N	Input	blue
S1	Room Probe	Input	red/white
S2	Evap Probe	Input	red/white
S3	Cond Probe	Input	red/white
S4	Aux Probe	Input	red/white
DI1	Door Switch	Input	gray
DI2	HP/LP Switch	Input	gray
R1	Compressor	Output	black
R2	Defrost	Output	orange
R3	Fan	Output	green
R4	Aux 1	Output	white
R5	Aux 2	Output	yellow
A/B	RS485	Comm	yellow/green

Important: Always disconnect power before wiring. Verify terminal numbers with the actual controller label before connecting.

Code	Parameter	Range	Default	Description
Set	Setpoint	-50 to 200	-20 °C	Temperature setpoint
Hys	Hysteresis	0.1 to 30	2 °C	Differential
Pb	Probe Type	0=NTC, 1=PT100, 2=4-20mA	0	Sensor type
dF	Defrost Type	0-4	1	0=Off, 1=Elec, 2=Gas, 3=Hot gas, 4=Scheduled
dt	Defrost Duration	0 to 180	60 min	Max duration
dI	Defrost Interval	0 to 48	6 hr	Time between
St	Defrost End Temp	0 to 50	12 °C	Termination temp
Ax1	Aux 1 Function	0-6	0	0=Alarm, 1=Light, 2=2nd comp, 3=Heater, 4=Pump, 5=Solenoid, 6=Spare
Ax2	Aux 2 Function	0-6	1	Aux 2 assignment
HAL	High Alarm	Set to 200	-5 °C	High temp alarm
LAL	Low Alarm	-50 to Set	-35 °C	Low temp alarm