Introduction; Features; Safety Precautions - Fuji Electric PXZ Series Operation Manual

INTRODUCTION

Thank you for purchasing the Fuji Electric PXZ controller. All of these
controllers are PID Autotune controllers that employ Fuji Electric's
patented fuzzy logic algorithms.
It is a fully programmable temperature/process controller incorporat-
ing many user-friendly features. The following easy-to-use instruc-
tions are intended to help you understand, set up, effectively operate,
and achieve optimal performance from your PXZ controller. When
programmed and operated within the guidelines set up for them in this
manual, your PXZ controller will give you years of precise, reliable
control. If needed, we will provide free technical support throughout
the life of the controller.

FEATURES

• Fuzzy Logic Control
• PID Autotune with manual override - heating or cooling
• Programmable control action - reverse or direct
• Programmable cycle time
• Programmable inputs - Thermocouple/RTD, or,
Current/ and Voltage
• Sensor burn-out protection
• Input calibration by user
• Outputs: Relay, Solid-state relay drive, and 4-20mA DC
• Secondary output for
cooling (optional)
• High/low alarm
outputs (optional)
• Heater break alarm (optional)
(only on PXZ-5, 7, 9)
• Menu driven format
• Setting – touch keys on front panel
• Programmable 8-segment ramp/soak function
• Digital filtering (to suppress factory noise)
• Adjustable setpoint range
• Selectable °F/°C
• Offset adjustments
• Programmable decimal point
• Programmable lock-up feature
• Advanced security options to prevent unauthorized parameter
changes
• 4-digit, LED indication
• Output status indication
• Fault indication
• Non-volatile memory
• 1/16, 1/8, 1/4 DIN and 72mm panel mount package
• NEMA 4X faceplate
• ABS plastic housing
• Termination—screw-down type (PXZ-5, 7, 9) or socket with screw-
down terminals (PXZ-4)
• Metal mounting bracket; plastic bracket for PXZ-4
• 85 to 264V AC free voltage power supply
• 24V AC/DC power supply (optional)
• UL, C-UL, and CE approvals
• 3-year warranty
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SAFETY PRECAUTIONS

Before using this product, the user is requested to read the following
precautions carefully to ensure safety. The safety requirements are
classified as either "warning" or "caution" according to the following
explanations:
suggesting that the user's mishandling can
Warning
result in personal death or serious injury.
suggesting that the user's mishandling can result
Caution
in personal injury or damage to the property.
Warning
Wiring
1. If there is danger of serious accident resulting from a failure or
defect in this unit, provide the unit with an appropriate external pro-
tective circuit to prevent an accident.
2. The unit is normally supplied without a power switch or a fuse. Use
power switch and fuse as required (Rating of the fuse: 250V, 1A)
Power supply
1. Be sure to use the rated power supply voltage to protect the unit
against damage and to prevent failure.
2. Keep the power off until all of the wiring is completed so that elec-
tric shock and trouble with the unit can be prevented.
General
1. Never attempt to disassemble, modify, or repair this unit. Tampering
with the unit may result in malfunction, electric shock, or fire.
2. Do not use the unit in combustible or explosive gaseous atmos-
pheres.
Caution
Installation
1. Avoid installing the unit in places where:
• the ambient temperature may reach beyond the range of -10 to
50°C (32 to 122°F) while in operation
• the ambient humidity may reach higher than 90% RH while in oper-
ation
• a change in the ambient temperature is so rapid as to cause con-
densation
• corrosive gases (sulfide and ammonia gas, in particular) or com-
bustible gases are emitted
• the unit is subject to vibration or shock
• the unit is likely to come in contact with water, oil, chemicals,
steam, or vapor
• the unit is exposed to dust, salt, or air containing iron particles
• the unit is subject to interference with static electricity, magnet-
ism, or noise
• the unit is exposed to direct sunlight
• heat may be accumulated due to radiation
Maintenance
1. Do not use organic solvents such as alcohol or benzene to wipe this
unit. Use a neutral detergent.
2. Three-year warranty is guaranteed only if the unit is properly used.
2