Fuji Temperature Controller PXR4 User Manual

The Fuji PXR4 Temperature Controller is a high-precision digital temperature controller featuring PID control, multiple input types (thermocouple, RTD), relay/SSR outputs, dual display showing PV and SV, alarm functions, auto-tuning, communication capabilities, and robust construction for industrial applications. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Dual digital display, front panel keys, terminal block connections, communication port, mounting bracket.

Installation

Unpack and inspect contents. Mount in appropriate location.

1. Panel Mounting: Cut appropriate panel cutout (92x92mm), insert controller from front.
2. Wiring Connections: Connect power supply, sensor input, and control outputs to terminal blocks.
3. Sensor Connection: Connect thermocouple or RTD to input terminals observing polarity.
4. Output Connection: Connect relay/SSR to output terminals for heater control.
5. Apply power and verify basic operation.

WARNING! Ensure proper grounding and follow electrical safety standards. Disconnect power before wiring.

First-Time Setup

Power on controller; configure basic parameters.

1. Set Control Mode: Access basic setting mode to configure control type (PID/ON-OFF).
2. Configure Input Type: Set appropriate sensor type (K-type thermocouple, Pt100, etc.).
3. Set Temperature Range: Configure upper and lower temperature limits.
4. Enable Auto-tuning: Activate AT function for optimal PID parameters.
5. Set Alarm Values: Configure alarm setpoints and hysteresis.

CAUTION! Verify sensor type setting matches actual sensor to prevent measurement errors.

Specifications

• Display: Dual 4-digit LED, red for PV, green for SV
• Accuracy: ±0.3% of span ±1 digit
• Control Action: PID with auto-tuning, ON-OFF control available
• Input Types: Thermocouple K, J, T, E, R, S, B; RTD Pt100; DC voltage/current
• Output Types: Relay contact (250V AC 3A), SSR drive (12V DC 20mA), analog output
• Alarms: 1-4 points, various modes (absolute, deviation, band)
• Power Supply: 100-240V AC ±10%, 50/60Hz, approx. 6VA
• Operating Temp: 0 to 50°C (32 to 122°F)
• Storage Temp: -20 to 60°C (-4 to 140°F)
• Protection: IP66 front panel

Controls and Settings

Access parameters via front panel keys. Normal display shows PV and SV.

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

Basic Settings: Input type, control output, alarm settings, PID parameters. Advanced Settings: Communication parameters, filter time constant, scaling, lock function. Operation: Press SET to enter setting mode, use UP/DOWN to adjust values, press SET to confirm.

Wiring Connections

Terminal block connections for power, input, output, and communication.

1. Power Supply: Connect AC power to L (line) and N (neutral) terminals.
2. Sensor Input: Connect thermocouple/RTD to +/- input terminals.
3. Control Output: Connect relay output to load (heater) observing voltage/current ratings.
4. Alarm Outputs: Connect alarm relays to external indicators or controls.
5. Communication: Connect RS-485 to A/B terminals for network communication.

Tip: Use shielded cables for sensor inputs and keep separated from power lines.

Operation Modes

Supports various control modes and functions.

1. PID Control: Proportional-Integral-Derivative control for precise temperature regulation.
2. ON-OFF Control: Simple two-position control for basic applications.
3. Manual Control: Manual output adjustment for testing and setup.
4. Auto-tuning: Automatic PID parameter calculation for optimal control.
5. Program Control: Multi-segment program control (if supported by model).
6. Communication Mode: Remote monitoring and control via RS-485.

WARNING! Do not touch terminals during operation. High voltage present.

Advanced Functions

Advanced features for specialized applications.

Communication Settings: Baud rate, address, protocol configuration. Input Scaling: Custom scaling for non-standard sensors. Output Limiting: Maximum output power limitation. Soft Start: Gradual power application to prevent thermal shock. Password Protection: Parameter lock to prevent unauthorized changes.

Maintenance & Care

Regular maintenance ensures optimal performance and longevity.

1. Visual Inspection: Check for physical damage, loose connections, or corrosion.
2. Cleaning: Use dry cloth to clean display and front panel; avoid chemicals.
3. Calibration: Periodic calibration check against reference standard.
4. Terminal Check: Ensure terminal screws are tight and connections secure.
5. Ventilation: Ensure adequate ventilation around unit.

CAUTION! Disconnect power before any maintenance. Use only approved replacement parts.

Regulatory Information

CE compliant: Meets European EMC and low voltage directives. UL/cUL approved: Listed under UL 508 industrial control equipment. RoHS compliant: Meets restriction of hazardous substances requirements. Copyright © Fuji Electric Co., Ltd. For technical support, contact Fuji Electric or authorized distributor. Refer to local regulations for proper disposal.

Troubleshooting

Reset: Initialize parameters if necessary (refer to manual for procedure).

Service: Contact Fuji Electric technical support or authorized service center.