Red Lion PAX2C User Manual

Bulletin No. PAX2C-B

Drawing No. LP0890

Released 04/13

Tel [phone]

Fax [phone]

www.redlion.net

MODEL PAX2C – 1/8 DIN TEMPERATURE/PROCESS PID CONTROLLER

z PID CONTROL WITH REDUCED OVERSHOOT

z UNIVERSAL PROCESS, TEMPERATURE, VOLTAGE, CURRENT

AND RESISTANCE INPUT

z PROGRAMMABLE DUAL LINE DISPLAY WITH UNITS

INDICATION AND BAR GRAPH

z FOUR PROGRAMMABLE UNIVERSAL ANNUNCIATORS

z TRI-COLOR DISPLAY, WITH 7 PROGRAMMABLE COLOR ZONES

z UP TO 16 ALARMS WITH BOOLEAN LOGIC FUNCTIONALITY

z BUILT-IN USB PROGRAMMING PORT ENABLING UNIT

CONFIGURATION WITH CRIMSON PROGRAMMING SOFTWARE

z NEMA 4X/IP65 SEALED FRONT BEZEL

U

R

C

PROCESS CONTROL EQUIPMENT

US LISTED

L

3RSD

DESCRIPTION

The PAX2C Temperature/Process Controller offers many features and
performance capabilities to suit a wide range of applications. The PAX2C has a
universal input to handle various input signals including Temperature, DC
Voltage/Current and Resistance. Optional plug-in cards allow the opportunity to
configure the controller for present applications, while providing easy upgrades
for future needs. The PAX2C employs a tri-color display with seven
independently programmable color zones.

The controller has been specifically designed for harsh industrial environments.
With NEMA 4X/IP65 sealed bezel, CE compliance and extensive testing of
noise effects, the controller provides a tough reliable application solution.

MAIN CONTROL

The controller operates in the PID Control Mode for both heating and cooling,
with on-demand auto-tune that establishes the tuning constants. The PID tuning
constants may be fine-tuned and then locked out from further modification. The
controller employs a unique overshoot suppression feature, that allows the
quickest response without excessive overshoot. Switching to Manual Mode
provides the operator direct control of the output.

DISPLAY

The PAX2C features a dual line display with units annunciators, dual bar
graphs, four universal annunciators and tri-color capability. Each of the seven
display zones may be configured independently of the others, providing a visual
indication of control and/or alarm status.

ALARMS

The PAX2C has up to sixteen “soft” alarms that may be configured to suit a
variety of control and alarm requirements. These alarms may be used to monitor
and/or actuate the controller’s physical outputs as well as change display colors.
Mapped “soft” alarms may be processed independently or logically combined
using AND/OR Boolean logic.

OPTION CARDS

Optional plug-in cards provide dual FORM-C relays, quad FORM-A, quad
sinking, or quad sourcing open collector logic outputs. These cards can be used
as control outputs or for alarm indication.

A linear DC output signal is available as an optional plug-in card. The card
provides either 20 mA or 10 V signals. The output can be scaled independent of
the input range and can track the input, max and min readings or for control.

Communication and bus capabilities are also available as option cards. These
include RS232, RS485, DeviceNet, and ProfibusDP. The PAX2C can be

programmed to utilize Modbus protocol. With Modbus, the user has access to
most configuration parameters. Readout values, setpoint, process and alarm
values can be controlled through the bus. Additionally, the controller has a
feature that allows a remote computer to directly control the outputs of the
controller.

With a Windows® based program, made available by Red Lion Controls,
configuration data can be downloaded to the PAX2C via a built-in USB
programming port.

DIMENSIONS In inches (mm)

3.80

(96.52)

1.95

(49.53)

0.10

(2.54)

Note: To determine dimensions for

horizontal units, swap height and
width. Recommended minimum
clearance (behind the panel) for
mounting clip installation is:

2.1" (53.4) W x 5.5" (140) H.

4.14

(105.16)

3.60

(91.44)

1.75

(44.45)

1

SAFETY SUMMARY

All safety related regulations, local codes and instructions that appear in this
literature or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired. Do not use this unit to directly
command motors, valves, or other actuators not equipped with safeguards. To do
so can be potentially harmful to persons or equipment in the event of a fault to
the unit.

Table Of COnTenTs

CAUTION: Risk of Danger.

Read complete instructions prior to

installation and operation of the unit.

CAUTION: Risk of electric shock.

Ordering Information ...................2

General Controller Specifications ..........3

Optional Plug-In Cards ..................5

Installing the Controller ..................6

Setting the Jumpers ....................6

Reviewing the Front Buttons and Display ....9

Programming the PAX2C ...............10

Frequently Used Modbus Registers .......42

Factory Service Operations .............46

Troubleshooting Guide .................52

Installing the Plug-In Cards ..............7

Wiring the Controller ....................7

Ordering infOrmaTiOn

Controller Part Numbers

MODEL NO. DESCRIPTION PART NUMBER

PAX2C

Universal Input Temperature/Process Controller, Horizontal PX2C8H00

Universal Input Temperature/Process Controller, Vertical PX2C8V00

Option Card and Accessories Part Numbers

TYPE MODEL NO. DESCRIPTION PART NUMBER

Dual Setpoint Relay Output Card PAXCDS10

PAXCDS

Optional

Plug-In

Cards

PAXCDC

PAXCDL Analog Output Card PAXCDL10

CBLUSB USB Programming Cable Type A-Mini B CBLUSB01

Note:

1.

For Modbus communications use RS485 Communications Output Card and configure communication (tYPE) parameter for Modbus.

Quad Setpoint Relay Output Card PAXCDS20

Quad Setpoint Sinking Open Collector Output Card PAXCDS30

Quad Setpoint Sourcing Open Collector Output Card PAXCDS40

RS485 Serial Communications Card with Terminal Block PAXCDC10

Extended RS485 Serial Communications Card with Dual RJ11 Connector PAXCDC1C

RS232 Serial Communications Card with Terminal Block PAXCDC20

Extended RS232 Serial Communications Card with 9 Pin D Connector PAXCDC2C

DeviceNet Communications Card PAXCDC30

Profibus-DP Communications Card PAXCDC50

2

general COnTrOller speCifiCaTiOns

1. DISPLAY: Negative image LCD with tri-color backlight.
The display is divided into seven independently programmable color zones:

Line 1, Line 2, Universal Annunciators (1-4) & Mnemonics

Line 1 and 2: 4 digits each line

Display Range: -1999 to 9999
Units - Programmable 3 digit units annunciator
Bar Graph - Programmable 8 segment bar graph

Universal Annunciator 1 thru 4: Programmable 2 digit annunciator
Status Mnemonics: MAN - Controller is in Manual Mode

REM – Controller is in Remote Mode

Vertical Model Digit Size: Line 1 - 0.51" (13 mm), Line 2 - 0.44" (11.2 mm)
Horizontal Model Digit Size: Line 1 - 0.62" (15.7 mm), Line 2 - 0.47" (12.0 mm)

2. POWER:
AC Power: 40 to 250 VAC, 50/60 Hz, 20 VA
DC Power: 21.6 to 250 VDC, 8 W
Isolation: 2300 Vrms for 1 min. to all inputs and outputs.

3. KEYPAD: 2 programmable function keys, 4 keys total

4. A/D CONVERTER: 24 bit resolution

5. DISPLAY MESSAGES:
“OLOL” - Appears when measurement exceeds + signal range.
“ULUL” - Appears when measurement exceeds - signal range
“Shrt” - Appears when shorted sensor is detected. (RTD range only)
“OPEN” - Appears when open sensor is detected. (TC/RTD range only)

“. . . . ” - Appears when display values exceed + display range.

“- . . . ” - Appears when display values exceed - display range.

6. INPUT CAPABILITIES:

Current Input:

INPUT RANGE

± 250 µADC

± 2.5 mADC

± 25 mADC

± 250 mADC

± 2 ADC

ACCURACY *

(18 to 28°C)

0.03% of rdg
+ 0.03µA

0.03% of rdg

+ 0.3µA

0.03% of rdg

+ 3µA

0.05% of rdg

+ 30µA

0.5% of rdg
+ 0.3mA

ACCURACY *

(0 to 50°C)

0.12% of rdg
+ 0.04µA

0.12% of rdg

+ 0.4µA

0.12% of rdg

+ 4µA

0.12% of rdg

+ 40µA

0.7% of rdg
+ 0.4mA

IMPEDANCE

1.11 KW

111 W

11.1 W

1.1 W

0.1 W

‡

RESOLUTION

0.1µA

1µA

10µA

0.1mA

1mA

Voltage Input:

INPUT RANGE

± 250 mVDC

± 2.0 VDC

± 10 VDC

± 25 VDC

± 100 VDC

± 200 VDC

ACCURACY *

(18 to 28°C)

0.03% of rdg
+ 30µV

0.03% of rdg

+ 0.3mV

0.03% of rdg

+ 3mV

0.03% of rdg

+ 3mV

0.3% of rdg
+ 30mV

0.3% of rdg
+ 30mV

ACCURACY *

(0 to 50°C)

0.12% of rdg
+ 40µV

0.12% of rdg

+ 0.4mV

0.12% of rdg

+ 4mV

0.12% of rdg

+ 4mV

0.12% of rdg

+ 40mV

0.12% of rdg

+ 40mV

IMPEDANCE

451 KW

451 KW

451 KW

451 KW

451 KW

451 KW

‡

RESOLUTION

0.1mV

1mV

1mV

10mV

0.1V

0.1V

Temperature Inputs:

Scale: °F or °C
Offset Range: -1999 to 9999 display units.

Thermocouple Inputs:

Input Impedance: 20MW
Lead Resisitance Effect: 0.03 µV/W
Max Continuous Overvoltage: 30 VDC

INPUT

TYPE

T -200 to 400°C 1.2°C 2.1°C ITS-90

E -200 to 750°C 1.0°C 2.4°C ITS-90

J -200 to 760°C 1.1°C 2.3°C ITS-90

K -200 to 1250°C 1.3°C 3.4°C ITS-90

R 0 to 1768°C 1.9°C 4.0°C ITS-90

S 0 to 1768°C 1.9°C 4.0°C ITS-90

B

N -200 to 1300°C 1.3°C 3.1°C ITS-90

C

(W5/W26)

RANGE

150 to 300°C

300 to 1820°C

0 to 2315°C 1.9°C 6.1°C

ACCURACY*

(18 to 28 °C)

3.9°C

2.8°C

ACCURACY*

(0 to 50 °C)

5.7°C

4.4°C

STANDARD

ITS-90

ASTM

E988-90**

WIRE COLOR

ANSI BS 1843

(+) blue
(-) red

(+) purple
(-) red

(+) white
(-) red

(+) yellow
(-) red

no
standard

no
standard

no
standard

(+) orange
(-) red

no
standard

RTD Inputs:

Type: 3 or 4 wire, 2 wire can be compensated for lead wire resistance
Excitation current: 100 ohm range: 136.5 µA ±10%
10 ohm range: 2.05 mA ±10%
Lead resistance: 100 ohm range: 10 ohm/lead max.
10 ohm range: 3 ohms/lead max.
Max. continuous overload: 30 VDC

INPUT TYPE RANGE

100 ohm Pt

alpha = .00385

100 ohm Pt

alpha = .00392

120 ohm Nickel

alpha = .00672

10 ohm Copper

alpha = .00427

-200 to 850°C 0.4°C 1.6°C IEC 751

-200 to 850°C 0.4°C 1.6°C

-80 to 259°C 0.2°C 0.5°C

-110 to 260°C 0.4°C 0.9°C

ACCURACY*

(18 to 28 °C)

ACCURACY*

(0 to 50 °C)

Resistance Inputs:

INPUT

RANGE

100 ohm

999 ohm

9999 ohm

ACCURACY *

(18 to 28°C)

0.05% of rdg
+0.03 ohm

0.05% of rdg

+0.3 ohm

0.05% of rdg

+1 ohm

ACCURACY *

(0 to 50°C)

0.2% of rdg
+0.04 ohm

0.2% of rdg

+0.4 ohm

0.2% of rdg

+1.5 ohm

COMPLIANCE

MAX CONT.
OVERLOAD‡ RESOLUTION

0.175 V 30 V 0.1 ohm

1.75 V 30 V 1 ohm

17.5 V 30 V 1 ohm

(+) white
(-) blue

(+) brown
(-) blue

(+) yellow
(-) blue

(+) brown
(-) blue

(+) white
(-) blue

(+) white
(-) blue

no
standard

(+) orange
(-) blue

no
standard

STANDARD

**

no official

standard

no official

standard

no official

standard

‡ Higher resolution can be achieved via input scaling.
* After 20 min. warm-up, @ 5 samples per second input rate. Accuracy is

specified in two ways: Accuracy over an 18 to 28ºC and 15 to 75% RH
environment; and Accuracy over a 0 to 50ºC and 0 to 85% RH (non
condensing) environment. The specification includes the A/D conversion
errors, linearization conformity, and thermocouple ice point compensation.
Total system accuracy is the sum of controller and probe errors. Accuracy
may be improved by field calibrating the controller readout at the
temperature of interest.

**

These curves have been corrected to ITS-90.

3

7. EXCITATION POWER: Jumper selectable
Transmitter Power: +18 VDC, ± 5% @ 50 mA max.
Reference Voltage: + 2 VDC, ± 2%

Compliance: 1KW load min (2 mA max)
Temperature Coefficient: 40 ppm/ºC max.

Reference Current: 1.05 mADC, ± 2%

Compliance: 10 KW load max.
Temperature Coefficient: 40 ppm/ºC max.

8. USER INPUTS: Two programmable user inputs
Max. Continuous Input: 30 VDC
Isolation To Sensor Input Common: Not isolated.
Logic State: User programmable (UACt) for sink/source (Lo/Hi)

INPUT STATE

(USrACt)

Active VIN < 1.1 VDC VIN > 2.2 VDC
Inactive VIN > 2.2 VDC VIN < 1.1 VDC

LO/SINK HI/SOURCE

20KW pull-up to +3.3V 20KW pull-down

9. CUSTOM LINEARIZATION:
Data Point Pairs: Selectable from 2 to 16
Display Range: -1999 to 9999
Decimal Point: 0 to 0.000

10. MEMORY: Nonvolatile FRAM memory retains all programmable
parameters and display values.

11. ENVIRONMENTAL CONDITIONS:
Operating Temperature Range: 0 to 50 °C
Storage Temperature Range: -40 to 60 °C
Vibration to IEC 68-2-6: Operational 5-150 Hz, 2 g
Shock to IEC 68-2-27: Operational 25 g (10 g relay)
Operating and Storage Humidity: 0 to 85% max. RH non-condensing
Altitude: Up to 2000 meters

12. CERTIFICATIONS AND COMPLIANCES:

CE Approved

EN 61326-1 Immunity to Industrial Locations
Emission CISPR 11 Class A
IEC/EN 61010-1

RoHS Compliant
UL Listed: File #E179259
Type 4X Indoor Enclosure rating (Face only)
IP65 Enclosure rating (Face only)
IP20 Enclosure rating (Rear of unit)

Refer to EMC Installation Guidelines section of the bulletin for additional

information.

13. CONNECTIONS: High compression cage-clamp terminal block
Wire Strip Length: 0.3" (7.5 mm)
Wire Gauge Capacity: One 14 AWG (2.55 mm) solid, two 18 AWG (1.02

mm) or four 20 AWG (0.61 mm)

14. CONSTRUCTION: This unit is rated NEMA 4X/IP65 for indoor use only.
IP20 Touch safe. Installation Category II, Pollution Degree 2. One piece
bezel/ case. Flame resistant. Synthetic rubber keypad. Panel gasket and
mounting clip included.

15. WEIGHT: 8 oz. (226.8 g)

4

OpTiOnal plug-in Cards

WARNING: Disconnect all power to the unit before

installing plug-in cards.

Adding Option Cards

The PAX2C controllers can be fitted with up to three optional plug-in cards.
The details for each plug-in card can be reviewed in the specification section
below. Only one card from each function type can be installed at a time. The
function types include Setpoint/Control (PAXCDS), Communications
(PAXCDC), and Analog Output (PAXCDL). The plug-in cards can be installed
initially or at a later date.

COMMUNICATION CARDS (PAXCDC)

A variety of communication protocols are available for the PAX2C controller.
Only one PAXCDC card can be installed at a time. Note: For Modbus

communications use RS485 Communications Output Card and configure
communication (tYPE) parameter for Modbus.

PAXCDC10 - RS485 Serial (Terminal) PAXCDC30 - DeviceNet
PAXCDC1C - RS485 Serial (Connector) PAXCDC50 - Profibus-DP
PAXCDC20 - RS232 Serial (Terminal)
PAXCDC2C - RS232 Serial (Connector)

SERIAL COMMUNICATIONS CARD

Type: RS485 or RS232

Communication Type: RLC Protocol (ASCII), Modbus RTU, and Modbus

ASCII

Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.

Working Voltage: 50 V. Not Isolated from all other commons.

Data: 7/8 bits

Baud: 1200 to 38,400

Parity: no, odd or even

Bus Address: Selectable 0 to 99 (RLC Protocol), or 1 to 247 (Modbus

Protocol), Max. 32 controllers per line (RS485)

Transmit Delay: Selectable for 0 to 0.250 sec (+2 msec min)

DEVICENET™ CARD

Compatibility: Group 2 Server Only, not UCMM capable

Baud Rates: 125 Kbaud, 250 Kbaud, and 500 Kbaud

Bus Interface: Phillips 82C250 or equivalent with MIS wiring protection per

DeviceNet™ Volume I Section 10.2.2.

Node Isolation: Bus powered, isolated node

Host Isolation: 500 Vrms for 1 minute (50 V working) between DeviceNet™

and controller input common.

PROFIBUS-DP CARD

Fieldbus Type: Profibus-DP as per EN 50170, implemented with Siemens

SPC3 ASIC

Conformance: PNO Certified Profibus-DP Slave Device

Baud Rates: Automatic baud rate detection in the range 9.6 Kbaud to 12 Mbaud

Station Address: 0 to 125, set by rotary switches.

Connection: 9-pin Female D-Sub connector

Network Isolation: 500 Vrms for 1 minute (50 V working) between Profibus

network and sensor and user input commons. Not isolated from all other
commons.

PROGRAMMING SOFTWARE

Crimson® software is a Windows® based program that allows configuration
of the PAX® controller from a PC. Crimson offers standard drop-down menu
commands, that make it easy to program the controller. The controller’s program
can then be saved in a PC file for future use. The Crimson installation file is
located on the included flash drive, or it can be downloaded at www.redlion.net

CONTROL/OUTPUT CARDS (PAXCDS)

The PAX2C controller has 4 available control/output plug-in cards. Only one
PAXCDS card can be installed at a time. (Logic state of the outputs can be
reversed in the programming.) These plug-in cards include:

PAXCDS10 - Dual Relay, FORM-C, Normally open & closed
PAXCDS20 - Quad Relay, FORM-A, Normally open only
PAXCDS30 - Isolated quad sinking NPN open collector
PAXCDS40 - Isolated quad sourcing PNP open collector

DUAL RELAY CARD

Type: Two FORM-C relays

Isolation To Sensor & User Input Commons: 2000 Vrms for 1 min.

Working Voltage: 240 Vrms

Contact Rating:

One Relay Energized: 5 amps @ 120/240 VAC or 28 VDC (resistive load).
Total current with both relays energized not to exceed 5 amps

Life Expectancy: 100 K cycles min. at full load rating. External RC snubber

extends relay life for operation with inductive loads

QUAD RELAY CARD

Type: Four FORM-A relays

Isolation To Sensor & User Input Commons: 2300 Vrms for 1 min.

Working Voltage: 250 Vrms

Contact Rating:

One Relay Energized: 3 amps @ 240 VAC or 30 VDC (resistive load).
Total current with all four relays energized not to exceed 4 amps

Life Expectancy: 100K cycles min. at full load rating. External RC snubber

extends relay life for operation with inductive loads

QUAD SINKING OPEN COLLECTOR CARD

Type: Four isolated sinking NPN transistors.

Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.

Working Voltage: 50 V. Not Isolated from all other commons.

Rating: 100 mA max @ V

QUAD SOURCING OPEN COLLECTOR CARD

Type: Four isolated sourcing PNP transistors.

Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.

Working Voltage: 50 V. Not Isolated from all other commons.

Rating: Internal supply: 18 VDC unregulated, 30 mA max. total

External supply: 30 VDC max., 100 mA max. each output

ALL FOUR SETPOINT CARDS

Response Time: See Update Rates step response specification on page 3; add

6 msec (typical) for relay card

= 0.7 V max. V

SAT

MAX

= 30 V

LINEAR DC OUTPUT (PAXCDL)

Either a 0(4)-20 mA or 0-10 V linear DC output is available from the analog
output plug-in card. The programmable output low and high scaling can be
based on various display values. Reverse slope output is possible by reversing
the scaling point positions.

PAXCDL10 - Retransmitted Analog Output Card

ANALOG OUTPUT CARD

Types: 0 to 20 mA, 4 to 20 mA or 0 to 10 VDC

Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.

Working Voltage: 50 V. Not Isolated from all other commons.

Accuracy: 0.17% of FS (18 to 28 °C); 0.4% of FS (0 to 50 °C)

Resolution: 1/3500

Compliance: 10 VDC: 10 KW load min., 20 mA: 500 W load max.

Powered: Self-powered

Step Response: See Update Rates step response specification on page 3.

Update time: See ADC Conversion Rate and Update Time parameter

5

1.0 insTalling The COnTrOller

PANEL

LATCHING
SLOTS

BEZEL

PANEL
GASKET

PANEL
LATCH

LATCHING
TABS

PANEL
MOUNTING
SCREWS

Installation

The PAX2C meets NEMA 4X/IP65 requirements when properly installed.
The unit is intended to be mounted into an enclosed panel. Prepare the panel
cutout to the dimensions shown. Remove the panel latch from the unit. Slide the
panel gasket over the rear of the unit to the back of the bezel. The unit should
be installed fully assembled. Insert the unit into the panel cutout.

While holding the unit in place, push the panel

latch over the rear of the unit so that the tabs of

the panel latch engage in the slots on the

case. The panel latch should be

engaged in the farthest forward slot

possible. To achieve a proper

seal, tighten the latch

2.0 seTTing The Jumpers

The PAX2C controller has four jumpers that must be checked and/or changed
prior to applying power. The following Jumper Selection Figures show an
enlargement of the jumper area.

To access the jumpers, remove the controller base from the case by firmly
squeezing and pulling back on the side rear finger tabs. This should lower the
latch below the case slot (which is located just in front of the finger tabs). It is
recommended to release the latch on one side, then start the other side latch.

Warning: Exposed line voltage exists on the circuit boards. Remove

all power to the controller and load circuits before accessing inside
of the controller.

FRONT DISPLAY

Main
Circuit
Board

JUMPER

LOCATIONS

Finger

Tab

REAR TERMINALS

INPUT RANGE JUMPERS

Voltage Input

Two jumpers are used in configuring the controller for voltage/resistance.
The first jumper, T/V, must be in the V (voltage) position. The second jumper is
used to select the proper voltage input range. (This jumper is also used to select
the current input range.) Select a range that is high enough to accommodate the
maximum signal input to avoid overloads. For proper operation, the input range
selected in programming must match the jumper setting.

RTD

I

100

T

V

V

Finger

Tab

screws evenly until the unit is snug in the panel (Torque to approximately 7
in-lbs [79N-cm]). Do not over-tighten the screws.

Installation Environment

The unit should be installed in a location that does not exceed the operating
temperature and provides good air circulation. Placing the unit near devices that
generate excessive heat should be avoided.

The bezel should only be cleaned with a soft cloth and neutral soap product.
Do NOT use solvents. Continuous exposure to direct sunlight may accelerate the
aging process of the bezel.

Do not use tools of any kind (screwdrivers, pens, pencils, etc.) to operate the
keypad of the unit.

HORIZONTAL PANEL CUT-OUT

+.03

3.62

-.00

+.8

(92 )

-.0

+.02

1.77

+.5

(45 )

-.00

-.0

Current Input

For current input, only one jumper must be configured to select the current
range. This jumper is shared with the voltage input range. To avoid overloads,
select the jumper position that is high enough to accommodate the maximum
signal input level to be applied.

Note: The position of the T/V jumper does not matter when the controller is
in the current input mode.

Temperature Input

For temperature measurement the T/V jumper must be in the T (temperature)
position. For RTD sensors the RTD jumper must also be set.

Resistance Input

Three jumpers are used to configure the resistance input. The T/V jumper
must be in the V (voltage) position, and the excitation jumper must be in the

1.05 mA REF position. The voltage/resistance jumper position is determined by
the input range.

Excitation Output Jumper

This jumper is used to select the excitation range for the application. If
excitation is not being used, it is not necessary to check or move this jumper.

EXCITATION OUTPUT JUMPER

18V @ 50mA
2V REF.

1.05 mA REF.

10 ohm RTD
100 ohm RTD

RTD INPUTS

INPUT RANGE JUMPERS

2 A

.25 A

.025 A

.0025 A

250 µA

CURRENT INPUTS

THERMOCOUPLE/

VOLTAGE

SELECTION

TEMPERATURE

VOLTAGE

LV - 250mV/2V/100Ω/1KΩ
M - 10V/100V
HV - 25V/200V/10KΩ

VOLTAGE/RESISTANCE

INPUTS

REAR TERMINALS

6

3.0 insTalling plug-in Cards

The plug-in cards are separately purchased optional cards that perform
specific functions. These cards plug into the main circuit board of the controller.
The plug-in cards have many unique functions when used with the PAX2C.

CAUTION: The plug-in card and main circuit board contain static

sensitive components. Before handling the cards, discharge static
charges from your body by touching a grounded bare metal
object. Ideally, handle the cards at a static controlled clean
workstation. Also, only handle the cards by the edges. Dirt, oil or
other contaminants that may contact the cards can adversely
affect circuit operation.

Connectors

Communications

Finger

Tab

Main
Circuit
Board

Serial

Card

Alignment

Slots

TOP VIEW

Analog Output
Card

Setpoint
Output
Card

Finger
Tab

To Install:

1. With the controller removed from the case, locate the plug-in card connector
for the card type to be installed. The types are keyed by position with
different main circuit board connector locations. When installing the card,
hold the controller by the rear terminals and not by the front display board.
If installing the Quad sourcing Plug-in Card (PAXCDS40), set the jumper for

internal or external supply operation before continuing.

2. Install the plug-in card by aligning the card terminals with the slot bay in the
rear cover. Be sure the connector is fully engaged and the tab on the plug-in
card rests in the alignment slot on the display board.

3. Slide the controller base back into the case. Be sure the rear cover latches
fully into the case.

4. Apply the plug-in card label to the bottom side of the controller in the
designated area. Do Not Cover the vents on the top surface of the controller.
The surface of the case must be clean for the label to adhere properly.

Internal Supply

(18 V unregulated)

External Supply
(30 V )

max

4.0 Wiring The COnTrOller

WIRING OVERVIEW

Electrical connections are made via screw-clamp terminals located on the
back of the controller. All conductors should conform to the controller’s voltage
and current ratings. All cabling should conform to appropriate standards of good
installation, local codes and regulations. It is recommended that the power
supplied to the controller (DC or AC) be protected by a fuse or circuit breaker.

When wiring the controller, compare the numbers embossed on the back of
the controller case against those shown in wiring drawings for proper wire
position. Strip the wire, leaving approximately 0.3" (7.5 mm) bare lead exposed
(stranded wires should be tinned with solder). Insert the lead under the correct
screw-clamp terminal and tighten until the wire is secure (Pull wire to verify
tightness). Each terminal can accept up to one #14 AWG (2.55 mm) wire, two
#18 AWG (1.02 mm), or four #20 AWG (0.61 mm).

EMC INSTALLATION GUIDELINES

Although Red Lion Controls Products are designed with a high degree of
immunity to Electromagnetic Interference (EMI), proper installation and wiring
methods must be followed to ensure compatibility in each application. The type
of the electrical noise, source or coupling method into a unit may be different
for various installations. Cable length, routing, and shield termination are very
important and can mean the difference between a successful or troublesome
installation. Listed are some EMI guidelines for a successful installation in an
industrial environment.

1. A unit should be mounted in a metal enclosure, which is properly connected

to protective earth.

2. Use shielded cables for all Signal and Control inputs. The shield connection

should be made as short as possible. The connection point for the shield

depends somewhat upon the application. Listed below are the recommended

methods of connecting the shield, in order of their effectiveness.

a. Connect the shield to earth ground (protective earth) at one end where the

unit is mounted.

b. Connect the shield to earth ground at both ends of the cable, usually when

the noise source frequency is over 1 MHz.

3. Never run Signal or Control cables in the same conduit or raceway with AC

power lines, conductors, feeding motors, solenoids, SCR controls, and

heaters, etc. The cables should be run through metal conduit that is properly

grounded. This is especially useful in applications where cable runs are long

and portable two-way radios are used in close proximity or if the installation
is near a commercial radio transmitter. Also, Signal or Control cables within
an enclosure should be routed as far away as possible from contactors, control
relays, transformers, and other noisy components.

4. Long cable runs are more susceptible to EMI pickup than short cable runs.

5. In extremely high EMI environments, the use of external EMI suppression
devices such as Ferrite Suppression Cores for signal and control cables is
effective. The following EMI suppression devices (or equivalent) are
recommended:

Fair-Rite part number 0443167251 (RLC part number FCOR0000)
Line Filters for input power cables:

6. To protect relay contacts that control inductive loads and to minimize radiated
and conducted noise (EMI), some type of contact protection network is
normally installed across the load, the contacts or both. The most effective
location is across the load.
a. Using a snubber, which is a resistor-capacitor (RC) network or metal oxide

varistor (MOV) across an AC inductive load is very effective at reducing
EMI and increasing relay contact life.

b. If a DC inductive load (such as a DC relay coil) is controlled by a transistor

switch, care must be taken not to exceed the breakdown voltage of the
transistor when the load is switched. One of the most effective ways is to
place a diode across the inductive load. Most RLC products with solid
state outputs have internal zener diode protection. However external diode
protection at the load is always a good design practice to limit EMI.
Although the use of a snubber or varistor could be used.
RLC part numbers: Snubber: SNUB0000
Varistor: ILS11500 or ILS23000

7. Care should be taken when connecting input and output devices to the
instrument. When a separate input and output common is provided, they
should not be mixed. Therefore a sensor common should NOT be connected
to an output common. This would cause EMI on the sensitive input common,
which could affect the instrument’s operation.

Visit RLC’s web site at http://www.redlion.net/Support/InstallationConsiderations.

html for more information on EMI guidelines, Safety and CE issues as they
relate to Red Lion Controls products.

Schaffner # FN2010-1/07 (Red Lion Controls # LFIL0000)

7

4.1 POWER WIRING

10K MAX

78

AC Power

AC/DC

1

2

AC/DC

The power supplied to the meter shall employ a 15 Amp UL approved circuit breaker for AC input and a 1 Amp, 250 V UL approved fuse for DC input. It shall be
easily accessible and marked as a disconnecting device to the installed unit. This device is not directly intended for connection to the mains without a reliable means
to reduce transient over-voltages to 1500 V.

DC Power

+

-

1

2

AC/DC

AC/DC

OR

-

+

1

2

AC/DC

AC/DC

4.2 VOLTAGE/RESISTANCE/CURRENT INPUT SIGNAL WIRING

IMPORTANT: Before connecting signal wires, the Input Range Jumpers and Excitation Jumper should be verified for proper position.

Voltage Signal Process/Current Signal

V-TC-RTD IN

I INPUT

6 7 8

+



200VDC MAX.

Process/Current
Signal
(external powered)

INP COMM

+

-

Load

+

2A DC MAX.

Current Signal (3 wire
(2 wire requiring 18V
excitation)

Excitation Jumper: 18 V

I INPUT

6

INP COMM

8

-

V EXEC

COMM

4

2 WIRE

TRANSMITTER

+

RTD EXC

I INPUT

5 63

-

requiring 18 V excitation)

Terminal 3: +Volt supply

Terminal 6: +ADC (signal)

Terminal 8: -ADC (common)

Excitation Jumper: 18 V

Voltage Signal (3 wire
requiring 18 V excitation)

Terminal 3: +Volt supply
Terminal 7: +VDC (signal)
Terminal 8: -VDC (common)
Excitation Jumper: 18 V

V EXC

3 WIRE TRANSMITTER

+

V-TC-RTD-IN

I INPUT

INP COMM

6 7 83

VoutIout

_

Resistance Signal
(2 wire requiring
excitation)

Terminal 3: Jumper to
terminal 7
Terminal 7: Resistance
Terminal 8: Resistance
Excitation Jumper:

1.05 mA REF.
T/V Jumper: V position
Voltage/Resistance Input

Jumper: Set per input signal

CAUTION: Sensor input common is NOT isolated from user input common. In order to preserve the safety of the controller application, the sensor input
common must be suitably isolated from hazardous live earth referenced voltages; or input common must be at protective earth ground potential. If not,
hazardous live voltage may be present at the User Inputs and User Input Common terminals. Appropriate considerations must then be given to the
potential of the user input common with respect to earth common; and the common of the isolated plug-in cards with respect to input common.

V EXC

V-TC-RTD-IN

3 7 8

INP COMM

1.05 mA
REF.

Potentiometer Signal as Voltage Input
(3 wire requiring excitation)

Terminal 3: High end of pot.
Terminal 7: Wiper
Terminal 8: Low end of pot.
Excitation Jumper: 2 V REF.
T/V Jumper: V
Voltage/Resistance Input Jumper: 2 Volt
Module 1 Input Range: 2 Volt

Note: The Apply signal scaling style

should be used because the signal
will be in volts.

4.3 TEMPERATURE INPUT SIGNAL WIRING

IMPORTANT: Before connecting signal wires, verify the T/V Jumper is in the T position.

Thermocouple

V-TC-RTD-IN

+

INP COMM



3-Wire RTD

RTD EXC

78

5

V-TC-RTD-IN

INP COMM

Sense Lead

RTD (Excitation)

2-Wire RTD

RTD EXC

V-TC-RTD-IN

5

78

INP COMM

Sense Lead

Jumper

V EXC

V-TC-RTD-IN

INP COMM

3 7 8

2V REF.

CAUTION: Sensor input common is NOT isolated

from user input common. In order to preserve the
safety of the controller application, the sensor

input common must be suitably isolated from
hazardous live earth referenced voltages; or input
common must be at protective earth ground
potential. If not, hazardous live voltage may be
present at the User Inputs and User Input Common
terminals. Appropriate considerations must then be
given to the potential of the user input common with
respect to earth common; and the common of the
isolated plug-in cards with respect to input common.

2V
INPUT

Rmin=1KΩ

8

4.4 USER INPUT WIRING

91

If not using User Inputs, then skip this section. User Input terminal does not need to be wired in order to remain in the inactive state.

Sinking Logic (UACt Lo)

When the UACt parameter is programmed
to Lo, the user inputs of the controller are
internally pulled up to +3.3 V with 20 KW
resistance. The input is active when it is
pulled low (<1.1 V).

USER INPUTS

USER COMM

USER 1

10 119

4.5 SETPOINT (ALARMS) WIRING

4.6 SERIAL COMMUNICATION WIRING

4.7 ANALOG OUTPUT WIRING

USER 2

OR





Sourcing Logic (UACt Hi)

When the UACt parameter is programmed
to Hi, the user inputs of the controller are
internally pulled down to 0 V with 20 KW
resistance. The input is active when a
voltage greater than 2.2 VDC is applied.

-

V

SUPPLY

USER INPUTS

USER COMM

10

+

(30V max.)

See appropriate plug-in card bulletin for wiring details.

USER 2

USER 1

1

OR

5.0 revieWing The frOnT buTTOns and display

Line 1:
Display, Bar Graph
and Units
(Color Zone 1)

Line 2:
Display, Bar Graph
and Units
(Color Zone 2)

Universal Annunciators
(Color Zones 3 - 6)

MAN REM

Manual and Remote
Mode Mnemonics
(Color Zone 7)

DISPLAY LINE 1

Line 1 consists of a large 4-digit top line display, eight segment bar graph and
a three digit units mnemonic: Values such as Input, Max(HI) & Min (LO) may
be shown on Line 1. The eight segment bar graph may be mapped to values such
as Output Power, Deviation or Setpoints. The three digit units mnemonic
characters can be used to indicate which Line 1 display value is shown. Line 1
is a tri-colored display and may be configured to change color based on
specified alarm/logic configurations.

KEY DISPLAY MODE OPERATION

D Index Line 2 through enabled Line 2 display values

P Enter full programming mode or access the parameter and

hidden display loops; Press and hold to skip parameters and go
directly to Code or Programming Menu

User programmable Function key 1; hold for 3 seconds for user

!

programmable second function 1*

User programmable Function key 2; hold for 3 seconds for user

@

programmable second function 2*

*Factory setting for F1 and F2 and second function F1/F2 is no mode

KEY PROGRAMMING MODE OPERATION

D Return to the previous menu level (momentary press)

Quick exit to Display Mode (press and hold)

P Access the programming parameter menu, store selected

parameter and index to next parameter

! Increment selected parameter value; Hold ! and momentarily

press @ key to increment next decade or D key to increment by
1000’s

@ Decrement selected parameter value; Hold @ and momentarily

press ! key to decrement next decade or D key to decrement
by 1000’s

DISPLAY LINE 2

Line 2 consists of a 4-digit bottom line display, eight segment bar graph and
a three digit units mnemonic. Values such as Setpoints, Output Power,
Deviation, PID Parameters/Tuning Status, List A/B Status, and Alarm Values
may be shown on the Line 2 display. The eight segment bar graph may be
mapped to values such as Output Power, Deviation or Setpoints. The three digit
units mnemonic characters can be used to indicate which Line 2 display value is
shown. Line 2 is a tri-colored display and may be configured to change color
based on specified alarm/logic configurations.

The display loops described in the next section are used to view, reset and
modify the selected display values, based on the Line 2 Value Access setting
programmed for each available value. See Line 2 parameters in the Display
Parameters programming section for configuration details.

9

Universal Annunciator Zones

The PAX2C has four programmable universal annunciator zones. Each zone
has a user-defined two digit annunciator mnemonic to suit a variety of
applications. Universal annunciator zones are tri-colored and may be configured
to change color based on specified alarm/logic configurations.

line 2 display lOOps

The PAX2C offers three display loops to allow users quick access to needed
information.

D

MAIN DISPLAY LOOP

Code 0

PLOC Enabled

P

DISPLAY

VALUE

dEnt

CHANGE

P

PARAMETER

DISPLAY

LOOP

P

P

Pro

End

P

Held

P

Held

Code 1-250

PLOC N/A

P

DISPLAY

VALUE

dEnt

CHANGE

P

PARAMETER

DISPLAY

LOOP

P

COdE

1-250

P

HIDDEN

PARAMETER

DISPLAY

LOOP

P

Code 0

PLOC Disabled

P

Held

P

DISPLAY

VALUE

dEnt

CHANGE

P

PARAMETER

DISPLAY

LOOP

P

Wrong

code

entered

Pro

NO

Full Programming Mode

Manual Mnemonic

‘MAN’ - Flashes when the unit is in manual mode
The Mnemonic zone is tri-colored and may be configured to change color

based on specified alarm/logic configurations.

Main Display Loop

In the Main display loop, the D key is pressed to sequence through the
selected Line 2 values. The Line 2 units mnemonics are used to indicate which
Line 2 value is currently shown. When in the Main display loop, the Function
keys and perform the user functions programmed in the User Input
parameter section.

Parameter and Hidden Parameter Display Loops

Display loops provide quick access to selected parameters that can be viewed
and modified on Line 2 without having to enter Full Programming mode. These
values may include: input, max/min, List A/B selection, output power, PID
parameters/control, alarm parameters, setpoint values/selection, and display
intensity and contrast settings. To utilize the Parameter or Hidden Parameter
display loops, a security code (1-250) must be programmed. (See Programming
Security Code in the Display Parameters programming section for details.)

The Parameter display loop is accessed by pressing the P key. The selected
Parameter display loop values can be viewed and/or changed per the Line 2
Value Access setting programmed for each available value. The Hidden
Parameter display loop follows the Parameter display loop, and can only be
accessed when the correct security code is entered at the Code prompt.
Combining the two parameter loops provides an area for parameters that require
general access and/or protected or secure access depending on the application
needs.

While in the Parameter and Hidden Parameter loops, pressing the D key will
return the meter to the Main display loop. To directly access the Code prompt,
press and hold the P key. This can be done from the Main display loop or at any
point during the Parameter display loop. Also, to directly access Full
Programming mode while in the Hidden Parameter loop, press and hold the P
key to bypass any remaining Hidden Parameter loop values.

6.0 prOgramming The paX2C

It is recommended that program settings be recorded as programming is

performed. A blank Parameter Value Chart is provided at the end of this bulletin.

BASIC/ADVANCED MODE

The PAX2C incorporates two different configuration modes that are user

selectable via the Display Configuration Menu:

Basic Mode (bSIC)

When the PAX2C is configured in this mode, a maximum of four alarms are
supported and no mapped backlignt color changes are available. Default
backlight colors are still user selectable.

Advanced Mode (AdUC)

A maximum of sixteen alarms are supported and all backlight color
configuration menu parameters are enabled. Select this mode when you require
more than four alarms or where display color changes are desired.

PROGRAMMING MODE ENTRY

The Programming Mode is entered by pressing the P key. Full Programming
Mode will be accessible unless the controller is programmed to use the
Parameter loop or Hidden Parameter loop on the Line 2 display. In this case,
programming access will be limited by a security code and/or a hardware
program lock. (Refer to the previous section for details on Line 2 display loops
and limited programming access.) Full Programming Mode permits all
parameters to be viewed and modified. In this mode, the front panel keys change
to Programming Mode Operations and certain user input functions are disabled.

MODULE ENTRY

The Programming Menu is organized into seven modules. These modules
group together parameters that are related in function. The  and  keys are
used to select the desired module. The displayed module is entered by pressing
the P key.

MODULE MENU

Upon entering a module, a parameter selection sub-menu is provided to
choose the specific parameter type for programming. For example, this includes
analog and user input under the Input Parameter menu. Use the  and  keys
to select the desired parameter type, and press the P key to enter the parameter
menu.

PARAMETER MENU

Upon entering the Parameter Menu, the P key is pressed to advance to a
specific parameter to be changed. After completing the parameter menu, or upon
pressing the D key, the display returns to the initial entry point for the parameter
menu. For each additional press of the D key, the display returns to the previous
level within the module until exiting the module entirely.

10

SELECTION/VALUE ENTRY

For each parameter, the top line display shows the parameter while
the bottom line shows the selections/value for that parameter. The 
and  keys are used to move through the selections/values for the
parameter. Pressing the P key, stores and activates the displayed
selection/value. This also advances the meter to the next parameter.

Numerical Value Entry

If the parameter is programmed for enter (Entr), the ! and @ keys
are used to change the parameter values in any of the display loops.

The ! and @ keys will increment or decrement the parameter value.
When the ! or @ key is pressed and held, the value automatically
scrolls. The longer the key is held the faster the value scrolls.

For large value changes, press and hold the ! or @ key. While
holding that key, momentarily press the opposite arrow key (@ or !)
to shift decades (10’s 100’s, etc), or momentarily press the D key and
the value scrolls by 1000’s as the arrow key is held. Releasing the arrow
key removes the decade or 1000’s scroll feature. The arrow keys can
then be used to make small value changes as described above.

Pro

NO

P D

Pro

NO

F2

F1

D

Pro

INPt

F2

F1

D

Pro

Out

F2

F1

INPt

P

AnLG

D

INPt

USEr

Out

P

dGtL

D

Out

AnLG

F2

F1

F2

F1

Analog Input Setup

Parameters

User Input/Function Key

Parameters

Digital Output Setup

Parameters

Analog Output Setup

Parameters

PROGRAMMING MODE EXIT

To exit the Programming Mode, press and hold the D key (from
anywhere in the Programming Mode) or press the P key with Pro NO
displayed. This will commit stored parameter changes to memory and
return the meter to the Display Mode. If a parameter was just changed,
the P key must be pressed to store the change before pressing the D key.
(If power loss occurs before returning to the Display Mode, verify recent
parameter changes.)

PROGRAMMING TIPS

It is recommended to start with the Input Parameters and proceed
through each module in sequence. If lost or confused while programming,
press and hold the D key to exit programming mode and start over. It is
recommended that program settings be recorded as programming is
performed. When programming is complete lock out programming with
a user input or lock-out code.

Factory Settings may be completely restored in the Factory Service
Operations module. This is useful when encountering programming
problems.

In Programming Menu:

Top line is green to indicate top level programming modules
Top line is orange to indicate module menu or sub-menu selection
Top line is red to indicate a changeable parameter.

dISP

CNFG

dISP

D

Pro

dISP

F2

F1

D

Pro

Pid

F2

F1

D

Pro

ALr

F2

F1

ZONE

P

dISP

D

LOCS

dISP

HILO

dISP

COdE

Pid

CtrL

Pid

SP

Pid

P

Pid

D

Pid

PWr

Pid

ONOF

Pid

tunE

P

SLCt

ALn

D

F2

F1

F2

F1

F2

F1

F2

F1

F2

F1

F2

F1

F2

F1

F2

F1

F2

F1

Display - General

Configuration Parameters

Display - Zone

Configuration Parameters

Display - Line 2

Parameters

Display - Min/Max

Configuration Parameters

Display - Security Code

Configuration Parameters

PID Control

Parameters

PID Setpoint

Parameters

PID

Parameters

Output Power

Parameters

On/Off

Parameters

PID Tuning

Parameters

Alarm

Parameters

D

Pro

Port

F2

F1

D

Pro

FACt

Pro

End

P

D

2 seconds

Port

USb

Port

SErL

F2

F1

Display Loop

USB Configuration

Parameters

Serial Communications

Parameters

Factory Service

Operations

11

inpuT parameTers (INPt)

INPUT SELECT

INPt

P2C

AnLG

Select the Input to be programmed.

AnLG USEr

analOg inpuT parameTers: TemperaTure mOde (AnLG)

This section details the programming for the analog input.

Pro

NO

F2

F1

Pro

INPt

TEMPERATURE INPUT TYPE

INPt

P

D

AnLG

P2C

tYPE

INP

tc-J

Input

Range

SCAL

INP

°F

Input

Scaling

ICE

INP

ON

Ice Point

Compensation

rAtE

INP

2O

SPS

Input
Rate

dCPt

0.0

Display

Decimal

Point

DECIMAL RESOLUTION (Display Units)

INP

rnd

0.1

Display

Rounding

INP

OFSt

INP

0.O

Display

Offset
Value

FLtr

INP

1.O

SEC

Filter

Setting

tYPE

INP

tc-J

250 uA 2 U 1k RES tc-r r392

2.5 mA 10 U 10k RES tc-S r672
25 mA 25 U tc-t tc-b r427
250 mA 100 U tc-E tc-n
2 A 200 U tc-J tc-C
250 mU 100 RESs tc-k r385

Shaded selections indicate the available temperature input types. Select the

desired input type.

TEMPERATURE SCALE

SCAL

INP

°F

Select the temperature scale. If changed, those parameters that

relate to the temperature scale should be checked.

°F °C

ICE POINT COMPENSATION

For TC Input Range Selection only.

ICE

INP

ON

This parameter turns the internal ice point compensation on or off.
Normally, the ice point compensation is on. If using external
compensation, set this parameter to off. In this case, use copper leads
from the external compensation point to the meter.

ON OFF

dCPt

INP

0.0

Select desired display resolution. The available selections are

dependent on the Input Type selected (tYPE).

rnd

INP

0.1

parameter entries (scaling point values, setpoint values, etc.) are not automatically
adjusted to this display rounding selection.

Rounding selections other than one, cause the Input Display to
‘round’ to the nearest rounding increment selected (ie. rounding of
‘5’ causes 122 to round to 120 and 123 to round to 125). Rounding
starts at the least significant digit of the Input Display. Remaining

OFSt

INP

0.0

The display can be corrected with an offset value. This can be used
to compensate for probe errors, errors due to variances in probe
placement or adjusting the readout to a reference thermometer.

0 to 0.0 (temp)

0 to 0.000 (curr/volt/ohm)

ROUNDING INCREMENT

1 2 5
10 20 50 100

DISPLAY OFFSET

-1999 to 9999

DIGITAL FILTERING

rAtE

INP

20

SPS

INPUT UPDATE RATE (/SEC)

5 10 20

Select the ADC conversion rate (conversions per second). The
selection does not affect the display update rate, however it does
affect alarm and analog output response time. The default factory
setting of 20 is recommended for most applications. Selecting a fast
update rate may cause the display to appear very unstable.

12

FLtr

1.0

INP

0.0 to 25.0 seconds

The input filter setting is a time constant expressed in tenths of a

second. The filter settles to 99% of the final display value within

SEC

approximately 3 time constants. This is an Adaptive Digital Filter
which is designed to steady the Input Display reading. A value of ‘0’
disables filtering.

analOg inpuT parameTers: prOCess mOde (AnLG)

This section details the programming for the analog input.

Pro

NO

F2

F1

Pro

INPt

INPt

P

D

AnLG

P2C

tYPE

2

Range

Input

Root

INP

NO

U

Enable
Square

Root

rAtE

INP

20

Input

Rate

dCPt

INP

0.O

SPS

Display
Decimal

Point

rnd

INP

0.1

Display

Rounding

PROCESS INPUT TYPE

tYPE

INP

2

U

250 uA 2 U 1k RES tc-r r392

2.5 mA 10 U 10k RES tc-S r672
25 mA 25 U tc-t tc-b r427
250 mA 100 U tc-E tc-n
2 A 200 U tc-J tc-C
250 mU 100 RESs tc-k r385

Shaded selections indicate the available process input types. Select the

desired input type.

SQUARE ROOT

Root

INP

NO

Example: It is necessary to square root linearize the output of a differential

pressure transmitter to indicate and control flow. The defining equation is F
= 278 ÖΔP , where ΔP = 0 - 500 PSI, transmitted linearly by a 4 - 20 mA

transducer. At full flow rate ( ΔP = 500 PSI), the flow is 6216 ft3/h. The

following scaling information is used with the controller:

As a result of the scaling and square root linearization, the following

represents the readings at various inputs:

This parameter allows the unit to be used in applications in which
the measured signal is the square of the PV. This is useful in
applications such as the measurement of flow with a differential
pressure transducer.

dCPt = 0 INPt1 = 4.00 mA

Root = YES dISP2 = 6216 ft3/hr

dISP1 = 0 ft3/hr INPt2 = 20.00 mA

YES NO

Delta P

(PSI)

15.63 4.50 1099

31.25 5.00 1554

62.50 6.00 2198

125.00 8.00 3108

187.50 10.00 3807

250.00 12.00 4396

312.50 14.00 4914

375.00 16.00 5383

437.50 18.00 5815

500.00 20.00 6216

Transmitter

(mA)

0.00 4.00 0

Flow

(ft3 /hr)

INPUT UPDATE RATE (/SEC)

rAtE

5 10 20 40

20

INP

Select the ADC conversion rate (conversions per second). The

SPS

selection does not affect the display update rate, however it does
affect alarm and analog output response time. The default factory

OFSt

INP

0.0

Display

setting of 5 is recommended for most applications. Selecting a fast update rate
may cause the display to appear very unstable.

Offset

Value

FLtr

INP

1.O

Filter

Setting

PNtS

INP

2

SEC

Scaling
Points

StYL

INP

KEY

Scaling

Style

INPt

INP

0.0

Input n

Value

dISP

INP

0.O

1

Display n

Value

SLSt

INP

1

NO

Enable
Scaling

List

INP

DECIMAL RESOLUTION (Display Units)

dCPt

0.0

INP

Select desired display resolution. The available selections are

dependent on the Input Type selected (tYPE).

0 to 0.000 (curr/volt/ohm)

0 to 0.0 (temp)

ROUNDING INCREMENT

rnd

INP

0.1

parameter entries (scaling point values, setpoint values, etc.) are not automatically
adjusted to this display rounding selection.

Rounding selections other than one, cause the Input Display to
‘round’ to the nearest rounding increment selected (ie. rounding of
‘5’ causes 122 to round to 120 and 123 to round to 125). Rounding
starts at the least significant digit of the Input Display. Remaining

1 2 5
10 20 50 100

DISPLAY OFFSET

OFSt

0.0

INP

The display can be corrected with an offset value. This can be used
to compensate for sensor errors, errors due to variances in sensor
placement or adjusting the readout to a reference source. A value of
zero will remove the affects of offset.

-1999 to 9999

DIGITAL FILTERING

FLtr

1.0

INP

The input filter setting is a time constant expressed in tenths of a
second. The filter settles to 99% of the final display value within

SEC

approximately 3 time constants. This is an Adaptive Digital Filter
which is designed to steady the Input Display reading. A value of ‘0’
disables filtering.

0.0 to 25.0 seconds

SCALING POINTS

PNtS

INP

2

entered points up to the limits of the Input Signal Jumper position. Each scaling
point has a coordinate-pair consisting of an Input Value (INPt n) and an
associated desired Display Value (dISP n).

Linear - Scaling Points (2)

For linear processes, only 2 scaling points are necessary. It is
recommended that the 2 scaling points be at opposite ends of the
input signal being applied. The points do not have to be the signal
limits. Display scaling will be linear between and continue past the

2 to 16

13

Nonlinear - Scaling Points (Greater than 2)

For non-linear processes, up to 16 scaling points may be used to provide a
piece-wise linear approximation. (The greater the number of scaling points used,
the greater the conformity accuracy.) The Input Display will be linear between
scaling points that are sequential in program order. Each scaling point has a
coordinate-pair consisting of an Input Value (INPt n) and an associated desired
Display Value (dISP n). Data from tables or equations, or empirical data could be
used to derive the required number of segments and data values for the
coordinate pairs. In the Crimson software, several linearization equations are
provided to help calculate scaling points.

SCALING STYLE

StYL

INP

KEY

If Input Values and corresponding Display Values are known, the

Key-in (KEY) scaling style can be used. This allows scaling without
the presence of the input signal. If Input Values have to be derived
from the actual input signal source or simulator, the Apply (APLY)
scaling style must be used.

INPUT VALUE FOR SCALING POINT 1

INPt

INP

0.000

value, apply the input signal that corresponds to Scaling Point 1, press @ key
and the actual signal value will be displayed. Then press the P key to accept this
value and continue to the next parameter.

For Key-in (KEY), enter the known first Input Value by using the

! or @ arrow keys. (The Input Range selection sets up the decimal

1

location for the Input Value). For Apply (APLY), the existing
programmed value will appear. If this is acceptable, press the P key
to save and continue to the next parameter. To update/program this

KEY key-in data
APLY apply signal

-1999 to 9999

INPUT VALUE FOR SCALING POINT 2

INPt

INP

1.000

the input signal that corresponds to Scaling Point 2, press @ key and the actual
signal value will be displayed. Then press the P key to accept this value and
continue to the next parameter. (Follow the same procedure if using more than
2 scaling points.)

For Key-in (KEY), enter the known second Input Value by using the

2

! or @ arrow keys. For Apply (APLY), the existing programmed
value will appear. If this is acceptable, press the P key to save and
continue to the next parameter. To update/program this value, apply

DISPLAY VALUE FOR SCALING POINT 2

dISP

INP

100.0

Enter the second coordinating Display Value by using the ! or @

2

arrow keys. This is the same for KEY and APLY scaling styles. (Follow
the same procedure if using more than 2 scaling points.)

SLSt

INP

NO

When enabled, a second list of scaling points is active in the

selected parameter list for List A and List B.

-1999 to 9999

-1999 to 9999

ENABLE SCALE LIST

NO YES

dISP

INP

0.0

1

DISPLAY VALUE FOR SCALING POINT 1

-1999 to 9999

Enter the first coordinating Display Value by using the arrow keys.

This is the same for KEY and APLY scaling styles. The decimal point
follows the dCPt selection.

14

user inpuT/funCTiOn Key parameTers (USEr)

The two user inputs are individually programmable to perform specific meter control functions. While in the Display Mode or Program Mode, the function is

executed the instant the user input transitions to the active state. The front panel function keys, ! and @, are also individually programmable to perform specific
control functions. While in the Display Mode, the primary function is executed the instant the key is pressed. Holding the function key for three seconds executes a
secondary function. It is possible to program a secondary function without a primary function.

In most cases, if more than one user input and/or function key is programmed for the same function, the maintained (level trigger) actions will be performed while
at least one of those user inputs or function keys are activated. The momentary (edge trigger) actions will be performed every time any of those user inputs or function
keys transition to the active state.

Note: In the following explanations, not all selections are available for both user inputs and front panel function keys. Displays are shown with each selection. Those
selections showing both displays are available for both. If a display is not shown, it is not available for that selection. USEr-n will represent both user inputs. Fn will
represent both function keys and second function keys.

Pro

NO

F2

F1

UACt

FNC

Lo

USrn

FNC

NONE

USrn

FNC

PLOC

Pro

INPt

USER INPUT ACTIVE STATE

Select the desired active state for the User Inputs. Select Lo for

sink input, active low. Select Hi for source input, active high.

INPt

P

Lo Hi

NO FUNCTION

D

P2C

USEr

USEr

P2C

UACt

USEr

P2C

USr1

Fn

FNC

No function is performed if activated. This is the

NONE

action). A security code can be configured to allow programming
access during lock-out.

factory setting for all user inputs and function keys.

PROGRAMMING MODE LOCK-OUT

Programming Mode is locked-out, as long as activated (maintained

INTEGRAL ACTION LOCK

USEr

USr2

USEr

P2C

F1

USrn

SPSL

USrn

PSEL

USrn

SPrP

setpoint ramping at the next setpoint change.

Fn

FNC

SPSL

Fn

FNC

PSEL

Fn

FNC

SPrP

USEr

P2C

FNC

FNC

FNC

P2C

F2

Function KeysUser Inputs

SETPOINT SELECTION

When activated (USr = maintained action; Fn =

toggle), the controller uses Setpoint 2 (SP2) as the active
setpoint value.

PID PARAMETER SELECTION

When activated (USr = maintained action; Fn =
toggle), the controller uses the Alternate P, I, D, and filter
values for control. The controller initiates a “bumpless”
transfer during each transfer in an effort to minimize any
output power fluctuation.

SETPOINT RAMPING DISABLE

When activated (USr = maintained action), setpoint
ramping is terminated and unit will operate at the target
setpoint. When user input is released, setpoint ramping
will resume at the next setpoint change.

When Function key is pressed (Fn = toggle), setpoint
ramping is terminated and unit will operate at the target
setpoint. A second press of the function key resumes

USEr

P2C

SCF1

USEr

P2C

SCF2

USrn

FNC

ILOC

USrn

FNC

trnF

Fn

ILOC

Fn

trnF

Integral Action of the PID computation is disabled as

FNC

long as activated (USr = maintained action; Fn = toggle).

AUTO/MANUAL MODE

Places the controller in manual (user) mode as long as

FNC

activated (USr = maintained action; Fn = toggle). The
output is “bumpless” when transferring to/from either
operating mode.

15

USrn

d-HI

SELECT MAXIMUM DISPLAY

The Maximum display appears on Line 2 as long as activated

(maintained). When the user input is released, the previously selected

FNC

display is returned. The D or P keys override and disable the active
user input. The Maximum continues to function independent of the
selected display.

RESET MAXIMUM DISPLAY

ADJUST DISPLAY INTENSITY

USrn

FNC

r-HI

USrn

FNC

d-Lo

USrn

FNC

r-Lo

USrn

FNC

r-HL

Fn

r-HI

The Minimum display appears on Line 2 as long as activated

(maintained). When the user input is released, the previously selected
display is returned. The D or P keys override and disable the active
user input. The Minimum continues to function independent of the
selected display.

Fn

r-Lo

RESET MAXIMUM AND MINIMUM DISPLAY

Fn

r-HL

When activated (momentary action), rSEt flashes and

FNC

the Maximum resets to the present Input Display value.
The Maximum function then continues from that value.
This selection functions independent of the selected
display.

SELECT MINIMUM DISPLAY

RESET MINIMUM DISPLAY

When activated (momentary action), rSEt flashes and

FNC

the Minimum resets to the present Input Display value.
The Minimum function then continues from that value.
This selection functions independent of the selected
display.

When activated (momentary action), rSEt flashes and

FNC

the Maximum and Minimum readings are set to the
present Input Display value. The Maximum and Minimum
function then continues from that value. This selection
functions independent of the selected display.

USrn

dLEU

USrn

dISP

USrn

LISt

(momentary action). The display will only indicate which list is active when the
list is changed. To program the values for List-A and List-B, first complete the
programming of all the parameters. Exit programming and switch to the other
list. Re-enter programming and enter the desired values for the input scaling
points, alarms, band, and deviation if used.

FNC

FNC

FNC

Fn

dLEU

Fn

dISP

Fn

LISt

FNC

When activated (momentary action), the display

intensity changes to the next intensity level.

DISPLAY SELECT

FNC

When activated (momentary action), Line 2 advances
to the next display that is not locked out from the Display
Mode.

SELECT PARAMETER LIST

Two lists of input scaling points and alarm values
(including band and deviation) are available. The two lists

FNC

are named LStA and LStb. If a user input is used to select
the list then LStA is selected when the user input is not
active and LStb is selected when the user input is active
(maintained action). If a front panel key is used to select
the list then the list will toggle for each key press

PRINT REQUEST

USrn

FNC

r-AL

ASEL

NO

RESET ALARMS

Fn

r-AL

Un

An

When activated (momentary action), the controller will

reset any active alarms that are selected in the User/

FNC

Function Alarm Selection Menu (ASEL).

Basic Mode: 4 Alarms Max
Advanced Mode: 16 Alarms Max

ALARM MASK SELECTION

Selects the alarms that will be reset when the User Input/

Function keys are activated. Any alarms configured as “YES”
will be reset depending on the alarms configuration. Please see
the Alarms section of the manual for more information on the
alarm reset operation.

USrn

Prnt

FNC

Fn

Prnt

The meter issues a block print through the serial port
when activated, and the serial type is set to rLC. The data

FNC

transmitted during a print request and the serial type is
programmed in Module 7. If the user input is still active
after the transmission is complete (about 100 msec), an
additional transmission occurs. As long as the user input
is held active, continuous transmissions occur.

16

OuTpuT parameTers (Out)

OUTPUT SELECT

Out

INP

dGtL

output selection only appears if an analog output and/or digital output
plug-in card is installed in the meter. When there is no output card
installed, “No Card” will be displayed on the display when trying to
enter the Output Configuration.

dGtL AnLG

Select the Digital or Analog output to be programmed. The Analog

digiTal OuTpuT parameTers (dGtL)

To have digital output capabilities, a digital output Plug-in card needs to be installed into the PAX2C (see Ordering Information). Depending on the output

card installed, there will be two or four digital outputs available.

Pro

NO

n 'LJLWDO2XWSXW1XPEHU

F2

F1

Pro

Out

Out

P

D

dGtL

P2C

SLCt

Outn

Output

Select

ASGN

P2C

On

HEAt

Output

Assignment

Available when

ASGN = ALr

LGIC

On

SNGL

Alarm Logic
Assignment

ASEL

Un

NO

An

Alarm Mask
Assignment

CYCt

INP

2.0

SEC

Output

Cycle Time

SLCt

P2C

Outn

ASGN

On

HEAt

LGIC

On

SNGL

DIGITAL OUTPUT SELECTION

Out1 Out2 Out3 Out4

Selects the digital output to be programmed. The “Outn” in the

following parameters will reflect the chosen output number. After the
chosen output is completely programmed, the display returns to the
Output Select menu. Repeat steps for each output to be programmed.
The number of outputs available is digital output card (PAXCDS)
dependent (2 or 4).

DIGITAL OUTPUT ASSIGNMENT

NONE HEAt COOL ALr MAN

This selection is used to assign the controller’s digital outputs to
various internal values or conditions. It is possible to assign the same
properties to more than one output.

= Digital Output is disabled

NONE

= Heat Output Power

HEAt

= Cool Output Power

COOL

= Alarm

ALr

= Manual Control Mode

MAN

ALARM LOGIC MODE

SNGL And Or

The PAX2C supports three different modes when an output is
assigned as an alarm:

= Any single alarm. Selecting YES to any selection

SNGL

will change other alarm selections to NO.

= Allows multiple alarms to be mapped to an output

And

using AND Boolean logic. For example: If AL1 and
AL2 are active, the output will energize.

= Allows multiple alarms to be mapped to an output

Or

using OR Boolean logic. For example: If AL1 or
AL2 are active, the output will energize.

ALARM MASK ASSIGNMENT

ASEL

NO

Un

Selects the alarms to be logically combined per the Alarm Logic

Mode selection. Any alarms configured as “YES” will be used in the

An

Boolean logic calculation. If the Alarm Logic Mode is assigned as
Single (SNGL), only one alarm may be selected at a time.

NO YES

Basic Mode: 4 Alarms Max
Advanced Mode: 16 Alarms Max

DIGITAL OUTPUT CYCLE TIME

CYCt

INP

2.0

3.5 seconds. A Cycle Time equal to, or less than, one-tenth of the process time
constant is recommended.

This parameter is only available when the digital output assignment is

configured as HEAt or COOL.

The Cycle Time value is the sum of a time-proportioned output’s

SEC

on and off cycles. With time proportional outputs, the percentage of
output power is converted into output on time of the cycle time value
eg. if the controller’s algorithm calls for 65% power, and has a Cycle
Time of 10 seconds, the output will be on for 6.5 seconds and off for

0.0 to 60.0 seconds

17