Fuji Electric PYH Data sheet

PYH SERIES

PERFECT FOR CONTROLLING RAPIDLY CHANGING PROCESSES LIKE PRESSURE AND FLOW

While most temperature control systems can be maintained sufficiently with the twice-per-second sampling rate found in other

controllers, the PYH reads the process variable ten times per second and makes control decisions at the same rate. That’s what

makes this controller well-suited to control pressure, flow rates, and temperature of low mass systems like a single metal filament.

With a fast sampling rate and full PID control, the PYH minimizes overshoot and oscillation around the setpoint which normally

would occur before most controllers would detect them.

The PYH can also handle slower responding processes and offers autotuning capability to optimize control parameters. For remote

operation and factory automation, up to 31 separate controllers can be monitored at the same time. Setpoint and other control

values can easily be reset at your command with free custom software.

The PYH offers another unique feature called position feedback. This capability lets you know and control the exact position of a

valve at any time. To initiate position feedback, the operator simply indicates two valve positions—fully open and fully closed. The

controller does the rest, keeping track of the valve position at all times. Knowing the precise position of the valve is critical in

boosting system performance and avoiding motor burnout where a controller without position feedback might try to open or close

a valve that’s already reached its limit.

• 100ms Sampling Rate

Handles fast responding processes like flow and pressure

• Dual Display

Shows process value, setpoint or % output simultaneously

• Offset Adjustments

Allows you to synchronize several controllers

• 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

• Inputs

J, K, R, T, S, B, E, W, 1 to 5 VDC, 0 to 10mV DC, 0 to 50mV

DC, 4 to 20mA, RTD

• Outputs

Relay, DC voltage pulse, 4 to 20mA, position feedback relay

• Password Protection

Prevent accidental or unauthorized changing of parameters

• Fault Indication

LEDs identify existing system problems

• Digital Filtering

Suppresses noise on input signal of fast-acting systems

• Sensor Break Protection

Protects your process if the input sensor fails

• User-Selectable Temperature Scale

Allows you to choose either °F or °C indication

• FREE Calibration

For the first three years you own your Fuji controller

• FREE Technical Support

From our team of factory-trained engineers

• Three-Year Warranty

Protects against manufacturing defects

Information subject to change without notice. Prices in USD.

PYH, CONTINUED

• Selectable Setpoints

• Remote Setpoint

• Digital Outputs

• Analog Retransmission

• Heater-Break Alarm

• Position Feedback

Compatible with systems using a slide wire to indicate valve position

• RS-485 Communications

Allows you to monitor and control your systems remotely

• Free Software

The Fuji PYH is available with an RS-485 communications option. When you buy this option, you get FREE software that enables

you to run 31 controllers per port from your PC. This software has been designed with the novice user in mind. It’s easy to

operate and install using a simple diskette and a standard twisted shielded pair type wiring. The source code for this software is

also provided, which allows you to rewrite your system easily and inexpensively. If you’ve considered automating your plant,

but don’t want to spend a fortune on distribution control software, this is an ideal solution.

PYH SPECIFICATIONS

GENERAL SPECIFICATIONS

POWER SUPPLY 85 to 264 VAC POWER CONSUMPTION 15VA at 110 VAC or 30VA at 220 VAC AUXILIARY OUTPUT Optional Retransmission of PV, SV, or MV

(ANALOG Output Signal: Linear 1 to 5 VDC RETRANSMISSION) Impedance: 500KΩ or more

MEMORY Non-volatile (EEPROM)

INPUT SELECTION

INPUT SIGNAL

CONTROL FUNCTION

CONTROL MODE OUTPUT 1 Proportional Band: 0 to 3276% FS

CONTROL MODE OUTPUT 2 Proportional Band: 0 to 3276% FS

MANUAL CONTROL Manual Mode: Local – A/M key on the front panel.

OUTPUT

RELAY 3A at 220 VAC, SPDT (resistive load) VOLTAGE (PULSED) 10 to 27 VDC (DC drive for SSR)

CURRENT Linear 4 to 20mA DC resistive load

POSITION FEEDBACK 3A, 220 VAC SPST(two relays)

Thermocouple: J, K, R, S, T, E, PR40/20, Tungsten RTD: Pt100 IEC, Pt100 JIS Voltage/Current: 4 to 20mA DC, 1 to 5 VDC, 0 to 10mV DC, 0 to 50mV DC

Integral Time: 0.1 to 3276 seconds Derivative Time: 0 to 900 seconds Cycle Time: 1 to 255 seconds (for relay, voltage pulse)

Remote – digital input Manual Setting: -25 to 125% control output

ON: 10 to 27 VDC typical, 20mA DC max. OFF: 0.5 VDC max.

Impedance: 600Ω or less

AUXILIARY INPUT

REMOTE SETPOINT (OPT) 1 to 5 VDC. Input Resistance:1MΩ or greater SELECTABLE SETPOINT PYH9–up to 7 setpoint settings, PYH5–up to

(OPTIONAL) 3 setpoint settings REMOTE AUTO/MANUAL Digital switching VALVE POSITION For position feedback control 100 to 1000Ω

POTENTIOMETER 3-wire potentiometer. Zero and span adjustment

programmable

ALARMS

SETTING TYPE Deviation and absolute value ALARM TYPE High, Low, Low with hold on start-up, High/Low,

High/Low with hold on start-up

OUTPUT 2 SPDT relays: 1A, 220 VAC resistive load HEATER BREAK ALARM Input: 0 to 30A or 20 to 50A 50/60Hz for current

(OPTIONAL) sensing transformer

Output: Relay: 1A, 220 VAC, SPST (resistive load) Setting: Voltage and current trip point (programmable)

FAULT ALARM LLLL: Under-range condition

UUUU: Over-range condition EEPROM: Error

COMMUNICATIONS (OPTIONAL)

INTERFACE RS-485 SYSTEM Half duplex SYNCHRONIZING Start-stop DATA LENGTH 8 bits PARITY None, odd, or even (programmable) STOP BIT 1 or 2 bits (programmable) BAUD RATE 9600 or 19200 (programmable) DISTANCE 1km max. ADDRESS 31 addressable units max.

Information subject to change without notice. Prices in USD.

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