fuji temperature controller pxr3 manual

The Fuji PXR3 Temperature Controller is a digital PID controller designed for precise temperature regulation in industrial applications. It features advanced PID control algorithms, multiple input types (thermocouple, RTD), relay and SSR outputs, programmable setpoints, alarm functions, and communication capabilities. Below are key sections covering safety, features, installation, operation, programming, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Wiring Connections 7. Operation Modes 8. Programming Parameters 9. Maintenance & Care 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Digital display, control buttons, input terminals, output terminals, communication port.

Feature	Description
Display	Dual 4-digit LED display for PV and SV
Control Algorithm	Advanced PID with auto-tuning
Input Types	Thermocouple (K, J, T, E), RTD (Pt100)
Output Types	Relay, SSR, voltage pulse
Alarm Functions	2 programmable alarms
Communication	RS-485 Modbus RTU
Power Supply	100-240V AC, 50/60Hz
Protection Rating	IP66 front panel
Memory Backup	Non-volatile memory for settings
Mounting	Panel mount (1/4 DIN)

Installation

Unpack and inspect contents. Ensure proper panel cutout dimensions.

Panel cutout: 45.5mm x 92mm (1/4 DIN standard)
Mounting: Insert controller into panel cutout and secure with mounting brackets
Wiring: Connect power, sensor input, and output according to wiring diagram
Grounding: Ensure proper earth ground connection

WARNING! Disconnect power before wiring. Ensure proper insulation and grounding.

First-Time Setup

Power on controller; configure basic parameters.

Input type selection: Set appropriate sensor type (K, J, T thermocouple or RTD)
Setpoint configuration: Program desired temperature setpoint
Control parameters: Use auto-tuning or manual PID setting
Alarm settings: Configure alarm types and setpoints
Output configuration: Set output type (relay, SSR, etc.)

CAUTION! Verify sensor type before operation to prevent damage.

Specifications

Display: Dual 4-digit LED (PV and SV)
Control Accuracy: ±0.3% of span ±1 digit
Input Types: Thermocouple K, J, T, E; RTD Pt100
Output Types: Relay (250V AC, 3A), SSR (12V DC), voltage pulse
Control Method: PID with auto-tuning
Alarms: 2 independent alarms
Power Supply: 100-240V AC, 50/60Hz
Operating Temp: 0 to 50°C (32 to 122°F)
Storage Temp: -20 to 60°C (-4 to 140°F)
Humidity: 35 to 85% RH (non-condensing)

Controls and Settings

Front panel controls: PV/SV display, SET key, UP/DOWN keys, MODE key.

Button Functions: SET (parameter access), UP/DOWN (value adjustment), MODE (mode selection).

Parameter Settings: Input type (IN-T), control method (PID), setpoint (SV), alarm values (AL1, AL2), output type (OUT-T), communication settings (Addr, baud rate).

Wiring Connections

Terminal connections: Power (L, N), sensor input (+,-), output (OUT, COM), alarm (AL1, AL2), communication (S+, S-).

Power: Connect AC power to L and N terminals
Sensor: Connect thermocouple or RTD to input terminals
Output: Connect load to output terminals according to output type
Alarms: Connect alarm devices to AL1 and AL2 terminals
Communication: Connect RS-485 to S+ and S- terminals

Tip: Use shielded cables for sensor connections and proper wire gauges for power.

Operation Modes

Supports manual and automatic control modes.

Normal operation: Automatic PID control with setpoint
Manual mode: Manual output control for testing
Auto-tuning: Automatic PID parameter calculation
Program mode: Multi-segment temperature programming
Communication mode: Remote control via RS-485

WARNING! Do not change parameters during stable operation.

Programming Parameters

Access parameters by pressing SET key for 3 seconds.

Parameter	Description	Range
IN-T	Input type selection	K, J, T, E, Pt100
SV	Setpoint value	Full scale range
P	Proportional band	0.1-999.9
I	Integral time	1-3600 sec
D	Derivative time	0-600 sec
AL1	Alarm 1 setting	Full scale range
AL2	Alarm 2 setting	Full scale range
OUT-T	Output type	Relay, SSR, voltage

Maintenance & Care

Regular inspection and cleaning recommended.

Display cleaning: Use soft dry cloth only
Terminal inspection: Check for loose connections periodically
Calibration: Verify accuracy annually
Environment: Keep free from dust and moisture

CAUTION! Disconnect power before any maintenance. Do not use solvents for cleaning.

Regulatory Information

CE compliant: Meets European EMC and LVD directives. UL/cUL listed: Complies with UL 508 standards. RoHS compliant: Free from hazardous substances. For technical support, contact Fuji Electric or visit www.fujielectric.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No display	Power supply	Check power connection and voltage
Inaccurate reading	Sensor/wiring	Verify sensor type and wiring; check for loose connections
No output	Output settings/load	Check output type setting; verify load connection
Overshoot/undershoot	PID parameters	Run auto-tuning; adjust PID parameters
Communication error	Cabling/settings	Check RS-485 wiring; verify address and baud rate

Reset: Power cycle or factory reset if needed.

Service: Contact authorized Fuji Electric service center.