CLARK SOLUTIONS

PXR Series Temperature & Process Controllers

Fuji Electric PID Controllers with Fuzzy Control of Self-Tuning

DESCRIPTION

The new PXR series controllers are the newest additions to Fuji Electric’s trusted line of temperature and process controllers. They are now packed with features and options and come in several sizes — 1/32 DIN, 1/16DIN, 1/8 DIN and 1/4 DIN.

These controllers have all the standard features that you expect from Fuji Electric’s superior controllers, and more. In addition to auto-tuning and fuzzy control, they now come with self-tuning — an innovation in the control field. It automatically retunes the controller under certain conditions, without the need to revert to auto-tuning. The standard 8-segment ramp/soak feature has been expanded to include two patterns that can be linked to create a 16-step profile. The PXR accepts temperature and process inputs and offers a choice of three kinds of outputs to meet a wide variety of needs in the process industries.

Low-cost options include dual outputs, programmable alarms, remote setpoint, RS485 communications, analog retransmission, digital input, timer function, heater burnout alarm and 24V AC/DC supply voltage. One of the most impressive features is the large LED display. The faceplate, designed for NEMA 4X (IP66 equivalent), is watertight and corrosion-resistant. The easy-to-use 3-button keypad allows for programming similar to the popular PXW controller. The screw-terminal on the back further reduces the cost by eliminating the need for sockets. The PXR3 can be DIN-rail mounted with the optional adapter. Remote monitoring of up to 31 controllers at a time is possible with the RS485 option that uses the industry-standard Modbus™ protocol. The communications option comes with our free Windows®-based software, PXR-LITE™. The software allows you to program the controller from the PC and view real-time data and trend graph while logging the data into a text file. A powerful tool for the OEM customer is the Program Loader option with Windows®-based software. Programs for different applications can be saved to and from the controller.

SPECIFICATIONS

Power supply voltage: 100 (-15%) to 240V (+10%) AC, 50/60Hz; 
		24V (±10%) AC/DC
Power consumption: PXR3: 6VA (100 VAC), 8VA (220V, 24V). 
		PXR4: 8VA (100V), 10VA (220V), 12VA (24V). 
		PXR5,9: 10VA(100V), 12VA (220V, 24V)
Reference junction compensation: accuracy ±17°C at 23°C
Input
Input signal thermocouple: J, K, R, B, S, T, E, N, PL2. RTD: Pt100. 
		Voltage, current.
		For 1 to 5V/4 to 20 mA DC, 0 to 5V/0 to 20 mA DC, use 
		250 ohm shunt resister included
Input filter: 0 to 900.0 sec set in 0.5 sec steps
Burnout: For thermocouple or RTD input, control output direction 
		(upper or lower) is selectable
Control Function
Control action On/Off; PID control (with auto-tuning, self-tuning); 
		Fuzzy Control(with auto-tuning)
Proportional band (P): 0 to 999.9% of measuring range set in 0.1% steps
Integral time: (l) 0 to 3200 sec set in 1 sec steps
Differential time: (D) 0 to 999.9 sec set in 1 sec steps
Proportional cycle: 1 to 150 sec set in1 sec steps
Hysteresis width: 0 to 50% of measuring range; For on/off action only
Input sampling cycle: 0.5 sec
Control Output 1 (select one)
Relay contact: PXR4, 5, 9: SPDT, 220 V AC/30 V DC, 3A (resistive load). 
		PXR3: SPST contact, 220 V AC/30 V DC, 3A(resistive load)
SSR: PXR4, 5, 9: ON-17 to 25 V DC; OFF-0.5 V DC or less. 
		PXR3: 12 to 16 V DC. Max. current: 20mA or less.
4 to 20 mA DC: PXR4, 5, 9: Allowable load resistance 600 ohms or less. 
		PXR3: 100 to 500 ohms
Control Output 2 (Heating/Cooling Control) (select one)
Relay contact: SPST, 220 V AC/30 V DC, 3A (resistive load)
SSR: PXR4, 5, 9: ON-17 to 25 V DC; OFF-0.5 V DC or less. 
		PXR3: 12 to 16 V DC. Max. current: 20mA or less
4 to 20 mA DC: PXR4, 5, 9: Allowable load resistance 600 ohms or less. 
		PXR3: 100 to 500 ohms
Operation and Display 
Parameter setting method: Digital setting by 3 keys; Key lock function provided
Display unit: Process value/set value displayed individually 4 digits, 7-segment LED
Status display LED: Control output, process alarm output, heater burnout alarm output
Indication accuracy (at 23°C): Thermocouple: ± (0.5% of measuring range)± 1 digit ±1°C.
		 For thermocouple R at 0 to 500°C: ± (1% of measuring range)±1 digit ±1°C.
		 For thermocouple B at 0 to 400°C: ± (5% of measuring range) ±1 digit
		 RTD, voltage/current: ±(0.5% of measuring range) ±1 digit ±1°C.
Alarm (option) 
Alarm type: Absolute alarm, deviation alarm, zone alarm with upper and lower 
		limits for each; hold function available; alarm latch function provided
Alarm ON-delay: Delay setting 0 to 9999 sec set in 1 sec steps
Process alarm output: Relay contact: SPST, 220 V AC/30 V DC, 1A (resistive load); 
		Max. 2 points (PXR3), max. 3 points (PXR4,5,9)
Heater burnout option: (not available on PXR3) Alarm setting range: 1 to 50A
		Available only when control output is relay or SSR drive.
Heater burnout alarm: output Relay contact: SPST, 220 V AC/30 V DC, 
		1A (resistive load); 1 output point
Current detector: CTL-6-S for 1 to 30 A; CTL-12 for 20 to 50 A 
Digital Input (option)
Points: 1 or 2; contact closure. 5 V DC, approx. 2mA
Function (select one): Set value (SV, SV1to 3) changeover, start/stop control action, 
		start/reset ramp/soak action, start/stop auto-tuning, cancel alarm latch, 
		start incorporated timer
Retransmission Output (option)
Output signal: 4-20 mA DC
Load resistance: 500 ohms or less
Output accuracy: ±0.3% FS
Output selection: PV, SV, MV, DV (SV-PV)
Timer Function (option)
Start: By digital input option
Setting: 0 to 9999 sec set in 1 sec steps
Action: Event ON-delay or OFF-delay
Signal output: Alarm output relays used; 2 points are available
Communication Function (option)
Physical specifications: EIA RS485
Communication protocol: Modbus (RTU). Free Windows®-based software, PXR-LITE™
Communication method: 2-wire method; half-duplex, bit serial, start-stop sync type
Data type: 8 bits; Parity: odd/even/none
Communication rate: 9600 bps
Connection aspect: Multi-drop up to 31 controllers
Communication distance: Total extension 500m or less
RS232C/RS485 signal converter: RSFC24 (recommended, see ordering information)
Remote Setpoint Option
Input signal: 1 to 5 V DC, 1 point
Accuracy: ±0.5% ±1 digit
Input sampling cycle: 0.5 sec
Display of remote mode: LED on front panel
Input impedance: 1M ohms or more
Other Functions
Parameter mask function: Parameter display can be disabled from keypad
Ramp/soak function: 8 ramps and 8 soaks; 1 or 2 program patterns; 
		digital input allows start/reset of the action
Operating and Storage Conditions
Ambient operating temperature: 14 to 122°F (-10 to 50°C)
Ambient operating humidity: Less than 90% RH (no condensation)
Storage temperature: -4 to 140°F (-20 to 60°C)
Structure
Mounting method: Panel flush mounting. PXR3 can be DIN-rail mounted 
		using the optional adapter
External terminal: Screw terminal
Dimensions: PXR3: 1 x 2 x 4 in. (24 x 48 x 98mm). PXR4: 1.89 x 1.89 x 3.37 in. 
		(48 x 48 x 79.8 mm). 
		PXR5: 2.07 x 3.96 x 3.77 in. (52.5 x 100.5 x 95.8 mm). 
		PXR9: 3.96 x 3.96 x 3.77 in (100.5 x 100.5 x 95.8 mm)
Protective structure: Front panel NEMA4X (IEC standard IP66 equivalent) 
		(when mounted on panel with supplied gasket). Rear case: IEC IP20
Outer color: Black (front panel, case)
Agency approvals: UL, c-UL recognized (UL873), CSA (C22.2 No.24-93), 
		CE certified (LVD:EN61010-1, EMC:1326-1)
Optional Items
Current transformer: For 1 to 30 A: CTL-6-S. For 20 to 50 A: CTL-12
Signal converter for communication function: RSFC24
DIN Rail adapter: For PXR3 only
Terminal cover: For PXR4 only

Program Loader Interface

The Program Loader for Fuji Electric's PX and PXR series controllers is a powerful tool for the OEM customer. Using the PXR4 Loader Assembly, the controller can be configured from a PC running on Windows environment.

FEATURES

• Retrieve or store controller data
• Selectively mask or unmask parameters for viewing on the controller
• Clone settings to other controllers from saved files
• Print data report

PXR LITE Communication Software

PXR-LITE^™ is free Windows^®- based software that is supplied with the communications option on a PXR controller. It is the latest in control and monitoring of Fuji Electric's PXR series controllers. It provides continuous remote monitoring of single or multiple controllers using a single half-duplex RS485 line.

FEATURES

• Monitor and control up to 31 controllers from a PC via RS485-RS232 signal converter
• Real-time charting and data-logging
• Remote setpoint adjustment
• Set control modes, alarms and other control parameters
• Remote auto-tuning and ramp-soak programming
• Live display of process and set point values, alarm annunciators
• View single-station or multi-station data
• Comprehensive help file included
• Runs on Windows^® environment, version 3.1 or later

ORDERING INFORMATION

ORDER NUMBER PXR-ABCD-1-EFG-A1
EXAMPLE PXR-3BEY-1-4VO-A1

A= Front Panel Size	B= Input Signal	C= Control Output 1	D= Control Output 2	E= Alarm Options	F= Power Supply	G= Additional Functions
3=1/32 DIN (24x48mm)	T=Thermocouple (°C)	A=Relay contact output	Y=None	4=None	V=Standard (100-240 VAC, 50/60Hz)	0=None
	R=Thermocouple (°F)	C=SSR or SSC drive output	A=Relay contact output	5=High/low alarm 1 point	B=24V AC/DC (50/60Hz)	M=RS485 communication (Modbus)
	N=RTD, Pt100 ohm, 3-wire type (°C)	E=4-20mA DC output	C=SSR or SSC drive output	G=High/low alarm 2 points1		Q=Retransmission + DI 1 point
	S=RTD, Pt100 ohm, 3-wire type (°F)		E=4-20mA DC output)			R=Retransmission (4-20mA DC)
	B=4-20mA DC, 1-5V DC					T=Digital Input (DI) x 2
	A=0-20mA DC, 0-5V DC					V=RS485 communications (Modbus)+ DI
Note: RS485 option comes with Free software, PXR-LITE. RS485 requires signal converter to connect to PC, P/N RSFC24 recommended.
1 High/low alarm 2 points not available when control output 2 is selected.

ORDERING INFORMATION

ORDER NUMBER: PXR-4/5/9-ABCD-1-EFG-A1
EXAMPLE PXR-4BEY-1-4VO-A1

A= Front Panel Size	B= Input Signal	C= Control Output 1	D= Control Output 2	E= Alarm Options	F= Power Supply	G= Additional Functions
4=1/16 DIN (48x48mm)	T=Thermocouple (°C)	A=Relay contact output	Y=None	4=None N/C	V=Standard (100-240 VAC, 50/60Hz)	0=None N/C
5=1/8 DIN (48x96mm)	R=Thermocouple (°F)	C=SSR or SSC drive output	A=Relay contact output	6=Heater break alarm1,2	B=24V AC/DC (50/60Hz)	M=RS485 communication (Modbus)
9=1/4 DIN (96x96mm)	N=RTD, Pt100 ohm, 3-wire type (°C)	E=4-20mA DC output	C=SSR or SSC drive output	G=High/low alarm 2 points		S=Digital Input (DI) x 1
	S=RTD, Pt100 ohm, 3-wire type (°F)		E=4-20mA DC output)	H=High/low alarm 2 points + heater break alarm1,2		T=Digital Input (DI) x 21
	B=4-20mA DC, 1-5V DC		R=Retransmission (4-20mA DC)	M=Alarm 3 points		T=Digital Input (DI) x 2
	A=0-20mA DC, 0-5V DC			D=Remote setpoint3		V=RS485 communications (Modbus) + DI1,3
				P=Remote setpoint + alarm 2 points3
Note: RS485 option comes with Free software, PXR-LITE. RS485 requires signal converter to connect to PC, P/N RSFC24 recommended.
1 Heater break option not available with 4-20mA output, or with 2 digital inputs, or with RS485 +1 digital input.
2 Must order current transformer CTL-6-S or CTL-12 with heater break option.
3 Remote setpoint option not available with RS485 +1 digital input.

ORDERING INFORMATION

ACCESSORIES

CTL-6-S	Current transformer for 1-30A
CTL-12	Current transformer for 20-50A
RSFC24	RS485 to RS232 signal converter
PXR4	Loader Assembly Program loader for PXR4 (can be used for PX series also)
PXR3	Rail Adapter Mounting adapter for DIN rail installation
PXR4	Terminal Cover Terminal block protective cover

TYPICAL APPLICATIONS

Furnace Heat Pattern Control
Ramp/Soak Function

Fryer Control to Keep Oil Temp. Stable

Cooling-Heating Control