Fuji Electric PYX Data sheet

PYX SERIES

FUZZY LOGIC CONTROLLERS WITH ADVANCED OPTIONS

Here’s a process controller that uses past experience to make decisions that eliminate costly problems like overshoot. The Fuji PYX

uses a type of artificial intelligence called “fuzzy logic” to learn your system’s particular characteristics, and works with that

knowledge to obtain the proper results.

During autotune (a procedure which automatically fine-tunes your controller) and during normal operation, the PYX is studying

your system’s responses to changing conditions. It remembers how the system responded at start-up and to disturbances (such as

opening an oven door). Once it gets to know your process, the PYX actually anticipates the extent of the fluctuation and takes

corrective action before a minor deviation becomes a major problem. That means an end to troublesome overshoot—even the minor

overshoot associated with PID control. It also means a virtual lock on the target setpoint once it’s been reached, without wandering.

The PYX also boasts a host of other indispensible features. Users can input an eight-segment program that leads a process

smoothly through a predetermined series of thermal steps. And when it comes to communicating with a computer, the PYX is

unsurpassed. Along with the RS-485 communications option, we provide free software that lets you monitor up to 31 controllers at

the same time. As with our simple front panel keypad menu, the software can be installed and run easily even by first-time users.

• True Fuzzy Logic Control

Uses artificial intelligence to learn your system

• Auto/Manual Operation

Manual override allows you to take control of the process at any time

• PID Autotuning

Automatically calculates PID control settings for you, thereby

optimizing system performance

• Universal Input

J, K, R, T, S, B, E, PL-II, 0 to 5 VDC, 1 to 5 VDC, 4 to 20mA, RTD

• RS485 Communications Option with Free Software

Monitors up to 31 Controllers

• Analog Retransmission Option

PV, setpoint or percent output as 1-5V DC

• Remote Setpoint Option

Permits operation from a remote device

• Dual Setpoints Option

Switch between two setpoints using an external contact

• Transmitter Power Supply Option

Provides 24V DC for loop-powered devices

• 8-Segment Ramp/Soak Program Option

Program ramp time and dwell time for four distinct setpoints

• Heater-Break Option Detects Heater Burnout

• Up to Two Outputs Available

Relay, SSR driver, 4-20 mA, 0-10V

• Up to Two Programmable Alarms

Allows user to customize alarm outputs as absolute, deviation, zone or

combination alarms as well as heater-break and loop-break alarms

• Three-Year Warranty

Against manufacturing defects

Information subject to change without notice. Prices in USD.

PYX, CONTINUED

PYX SPECIFICATIONS

GENERAL SPECIFICATIONS

POWER SOURCE 85 to 264 VAC, 50/60Hz

INPUT

PROCESS VARIABLE INPUT SIGNAL WRe5-26, PL-II

Thermocouple: J, K, R, B, T, E, S, N, U, RTD: 3-wire Pt100Ω.

Allowable wiring resistance 10Ω max. (per wire) Voltage Input: DC 1 to 5V; DC 0 to 5V Input resistance 1MΩ min. Current Input: DC 4 to 20mA

INPUT ACCURACY ±0.5% FS, ±1 digit COLD JUNCTION ±1°C

COMPENSATION ERROR INPUT SAMPLING CYCLE 500ms DIGITAL INPUT (OPTION) Number of Input Points: 1 pt. DC 16V, 15mA

CONTROL FUNCTION

OPERATION MODE Auto or manual operation FUZZY CONTROL Fuji’s original fuzzy control PID CONTROL Proportional Band (P): 0 to 999.9%

WITH AUTOTUNING Integral Time (I): 0 to 3,200 seconds

Rate Time (D): 0 to 999.9 seconds (Fuzzy control action or PID action with autotuning is selectable by using the front panel key)

PROPORTIONAL 1 to 120 seconds CYCLE TIME

INPUT SAMPLING CYCLE TIME

OUTPUT

CONTROL OUTPUT

0.5 seconds

Relay contact, voltage pulse output (for SSR drive) and current and voltage output

STANDARD OUTPUT TYPE Of the following types, any one could be specified

Relay: 220V AC, 3A (resistive load) SSR/SSC Drive: ON – 20mA, 24V max. OFF – 0.5V or less Current: 4 to 20mA DC. Allowable load resistance 600Ω or less Voltage: 0-10V DC

DUAL OUTPUT OPTION Of the following output types, any one could be

specified for each of the heating and cooling sides Relay 220V AC, 3A (resistive load) SSR/SSC Drive Output: ON – 24V 20mA max. OFF – 0.5V or less. Current: 4 to 20mA DC (n/a PYX-4). Allowable load resistance 600Ω or less. Voltage: 0-10V DC (n/a PYX4)

AUXILIARY Number of Output Points: 1 point ANALOG OUTPUT Output Data: Selectable between PV, SV, and MV (RETRANSMISSION OPTION) Output Accuracy: ±0.5% FS

Kind of Output: 1 to 5 VDC

ALARM (OPTIONAL)

UPPER/LOWER LIMIT ALARM panel key. Alarm output: 2 points

HEATER BREAK ALARM A break is detectable only when a single-phase

Desired alarm type is selectable by using the front

heater is used. (Only available on time proportioned outputs.) Primary input of current detector (CT): 1 to 50A. (The current detector (CT) needs to be ordered separately from this controller. CT is installed outside the controller.) Output: use ALM1 or ALM2 output

HEATER POWER VOLTAGE This function is effective when the heater and this CORRECTING controller share the same power supply.

RELAY CONTACT OUTPUT Normally open SPST contact, 220 VAC, 3A

(resistive load)

ALARM OUTPUT 2 SPST contacts max. (ALM1, ALM2)

OPERATION AND DISPLAY SECTION

SETTING AND INDICATION Accuracy: ±0.5% FS, ±1 digit

OPERATING AND STORAGE CONDITIONS

ALLOWABLE AMBIENT TEMPERATURE

STORAGE TEMPERATURE -20 to 60°C (-4 to 140°F)

STRUCTURE

MOUNTING METHOD Panel mount EXTERNAL DIMENSIONS PYX-4: 1.89 x 1.89 x 4.52 in. (48 x 48 x 115mm)

(HxWxD) PYX-5: 3.78 x 1.89 x 3.94 in. (96 x 48 x 100mm)

-10 to 50°C (14 to 122°F)

EXTERNAL TERMINAL Screw terminal M3.5

ADDITIONAL OPTIONS

ANALOG RETRANSMISSION 1-5V DC COMMUNICATIONS RS-485 (see below) PROGRAMMABLE ALARMS 2 points max. DUAL OUTPUTS RLY, SSR, 4-20mA REMOTE SETPOINT INPUT 1 to 5 VDC HEATER BREAK ALARM 1 point RAMP/SOAK FUNCTION 8 ramp/soak segments DUAL SETPOINT (DI) 1 point TRANSMITTER POWER 24 VDC

SUPPL Y

FREE PYX-LITE DATA LOGGING SOFTWARE

Windows™-based PYX-LITE supports Windows DDE (Dynamic Data Exchange) and provides data logging output in an easy-to-use

comma-delimited format.

It supports up to 31 PYX controllers from a single

workstation and is capable of displaying all 31 controllers

simultaneously. PYX-LITE offers both Supervisory Mode for

viewing the entire network at a glance, and Single Station

Master Mode for viewing all parameters for one controller

on a single screen. It allows personnel to set-up, monitor,

and control the entire PYX network from a single

workstation on only two wires (RS-485 communication).

Information subject to change without notice. Prices in USD.

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