Watlow F4T Operating Manual

F4T Controller

Installation and Troubleshooting

User’s Guide

TOTAL

CUSTOMER

SATISFACTION

3YearWarranty

ISO 9001

1241 Bundy Boulevard., Winona, Minnesota USA 55987

Phone: [phone], Fax: [phone]

http://www.watlow.com/F4T

Registered Company

Winona, Minnesota USA

1720-6742 Rev. A

Made in the U.S.A.

January 2019

Safety Information

We use note, caution and warning symbols throughout this document to draw your attention to important operational and safety information.

A “NOTE” marks a short message to alert you to an important detail.

A “CAUTION” safety alert appears with information that is important for protecting your equipment and performance. Be especially careful to read and follow all cautions that apply to your application.

A “WARNING” safety alert appears with information that is important for protecting you, others and equipment from damage. Pay very close attention to all warnings that apply to your application.

The safety alert symbol, (an exclamation point in a triangle ç) precedes a general CAUTION or WARNING statement.

The electrical hazard symbol, (a lightning bolt in a triangleÓ) precedes an electric shock hazard CAUTION or WARNING safety statement. Further explanations follow:

	Symbol		Explanation
			CAUTION: Warning or Electrical Hazard that needs further explana-
ç		Ó	tion than label on unit can provide. Consult QSG for further infor-
			mation.
CAUTION	or	Electrical	AVERTISSEMENT: mise en garde ou danger qui demande plus de
WARNING		Shock Hazard	précisions que l’information sur l’étiquette de l’unité. Consultez le
			manuel de l’utilisateur pour plus d’informations.
			Unit can be powered with either alternating current (ac) voltage or
			direct current (dc) voltage.
			ESD Sensitive product, use proper grounding and handling tech-
			niques when installing or servicing product.
			Do not throw in trash, use proper recycling techniques or consult
			manufacturer for proper disposal.
			Enclosure made of Polycarbonate material. Use proper recycling
			techniques or consult manufacturer for proper disposal.
			Unit is a Listed device per Underwriters Laboratories®. It has been
			evaluated to United States and Canadian requirements for Process
			Control Equipment. CSA 22.2#14, File 158031, UL 61010, File
			E185611 QUYX, QUYX7. . See: www.ul.com
			Unit is compliant with European Union directives. See Declaration
			of Conformity for further details on Directives and Standards used
			for Compliance.
			Unit has been reviewed and approved by Factory Mutual as a
			Temperature Limit Device per FM Class 3545 standard. See: www.
			fmglobal.com

Symbol		Explanation
	Unit has been reviewed and approved by CSA International for use
	as Temperature Indicating-Regulating Equipment per CSA C22.2 No.
	24.	See: www.csagroup.org

This F4T User’s Guide is copyrighted by Watlow Electric Manufacturing Company, © May 2016 with all rights reserved.

•© 2010-2012, QNX Software Systems Limited. All rights reserved.

•© 2008 -2014, Crank Software Inc. All rights reserved.

•Watlow® and TRU-TUNE® are registered trademarks of Watlow Electric Manufacturing Company.

•UL® is a registered trademark of Underwriter's Laboratories Incorporated.

•Modbus® is a registered trademark of Schneider Automation Incorporated.

•Vaisala® is a registered trademark of Vaisala OY Corporation.

•Microsoft® and Windows® are registered trademarks of the Microsoft Corporation. Quencharc® is a registered trademark of ITW Paktron.

10-07433 Rev. –

TC Table of Contents
Chapter 1: Overview .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.2
Available F4T Literature and Resources. . . . . . . . . . . . . . . . . . . . . . . . .	. 2
Chapter 2: Install and Wire. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 4
Getting Started Quickly.... .The Logical Approach. . . . . . . . . . . . . . . . . . .	. 4
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4
Installing the F4T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 5
Panel Mounting the Base. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	5
Flush Mounting the Base. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
Electrical Isolation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
Wiring the F4T Base.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 9
Flex Module (FM) Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . .	. 9
Flex Module Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 9
Wiring the Modules.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	10
Communications Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . .	24

Chapter 3: Connecting a PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Using the User Interface (UI) to Change or View Ethernet Settings.. . . 25

Understanding the Front Panel Navigational Buttons . . . . . . . . . . . 25

Connecting the F4T Base to a PC.. . . . . . . . . . . . . . . . . . . . . . . . . . . . .	27
DHCP Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 27
Fixed IP Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	27
Composer Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	28
Starting Composer Software.. . . . . . . . . . . . . . . . . . . . . . . . . . . . .	28
Verifying Pluggable Flex Module Installation Using Composer.. .	. 28
Chapter 4: Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 30
Calibrating the F4T Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 30
Required Equipment When Performing Calibration . . . . . . . . . . . . . . . .	30
Calibration of Analog Inputs.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	31
Using Composer Software to Calibrate Analog Inputs. . . . . . . . . . . . . .	32
Using the User Interface to Calibrate Analog Inputs. . . . . . . . . . . . . . .	32
Chapter 5: Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 33
Replacing the Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	39
Chapter 6: Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 41
F4T Base Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	41
F4T Base Ordering Information.. . . . . . . . . . . . . . . . . . . . . . . . . . .	44
Flex Modules and Limit I/O Specifications. . . . . . . . . . . . . . . . . . . . . . .	45
Flex Module - Mixed I/O Ordering Information. . . . . . . . . . . . . . . .	48
Flex Module - Limit Ordering Information. . . . . . . . . . . . . . . . . . .	49

Flex Modules - High Density I/O Specifications. . . . . . . . . . . . . . . . . . . 49

Flex Module - High Density Ordering Information. . . . . . . . . . . . . 53

Flex Module - Communications Ordering Information . . . . . . . . . . 53

How to Reach Us. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Watlow F4T Install & Troubleshooting

• 1 •

Table of Contents

1		Chapter 1: Overview
Available F4T Literature and Resources
	Document Title and Part Number		Description
			This document looks deeper at the system
	F4T Setup and Operation User Guide,		configuration using Composer™ software and
			the F4T function blocks and their connections.
	part number: 1680-2414 Rev. A
			Common product usage is described and illustrat-
			ed through application examples.
	F4T Specification Sheet, part number:		Describes F4T hardware options, features,
	WIN-F4T-1118		benefits and technical specifications.
			Comprehensive guide to understanding thermal
	Watlow Application Guide		principles, electrical noise, best practises for
			wiring industrial controls and much more.
	Watlow Support Tools DVD, part		Contains all related user documents, tutorial
			videos, application notes and the application
	number: 0601-0001-0000
			guide described above.

To acquire one or more of these documents navigate to the Watlow website where you will have a choice to download free copies or purchase printed versions. Click on the link below to find your document of choice: http://www.watlow.com/F4T. For the Application Guide, click here: http://www.watlow.com/common/catalogs/files/appguide.pdf

Your Comments are Appreciated

In an effort to continually improve our technical literature and ensuring that we are providing information that is useful to you, we would very much appreciate your comments and suggestions. Please send any comments you may have to the following e-mail address: [e-mail]

Technical Assistance

If you encounter a problem with your Watlow controller, review your configuration information to verify that your selections are consistent with your application: inputs, outputs, alarms, limits, etc. If the problem persists, you should first contact the Original

Equipment Manufacturer (OEM) for assistance. If that is not an option you can also get assistance directly from Watlow:

•Contact a local representative: see last page

•Email: [e-mail]

•Call: 1-800-4WATLOW (1-800-492-8569) or [phone] from 7 a.m. to 5 p.m. Central Standard Time (CST) (Select options for Controls & Software and Technical Support)

Please have the following information available when calling:

• Complete model number

• User’s Guide

• All configuration information

Watlow F4T Install & Troubleshooting

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Chapter 1 Overview

Warranty

This product is warranted by Watlow for a period of 36 months in accordance with the terms and conditions set forth on Watlow's website which can be accessed at www.watlow.com/terms.

Return Material Authorization (RMA)

1.Call Watlow Customer Service, [phone], for a Return Material Authorization (RMA) number before returning any item for repair. If you do not know why the product failed, contact an Application Engineer or Product Manager. All RMA’s require:

•Ship-to address

•Bill-to address

•Contact name

•Phone number

•Method of return shipment

•Your P.O. number

•Detailed description of the problem

•Any special instructions

•Name and phone number of person returning the product.

2.Prior approval and an RMA number from the Customer Service Department is required when returning any product. Make sure the RMA number is on the outside of the carton and on all paperwork returned. Ship on a Freight Prepaid basis.

3.After we receive your return, we will examine it to verify the reason for the product failure. Unless otherwise agreed to in writing, Watlow's standard warranty provisions, which can be located at www.watlow.com/terms, will apply to any failed product.

4.In the event that the product is not subject to an applicable warranty, we will quote repair costs to you and request a purchase order from you prior to proceeding with the repair work.

5.Watlow reserves the right to charge for no trouble found (NTF) returns.

Document Overview and Purpose

The purpose of this document is to assist the installer in providing necessary information to mount, wire and power up the F4T controller. This document also provides information to assist in the process of diagnosing problems which might occur during or after the installation process.

Watlow F4T Install & Troubleshooting

• 3 •

Chapter 1 Overview

2 Chapter 2: Install and Wire

Getting Started Quickly.... .The Logical Approach

The steps below outline installation and wiring for the base alone. More detail for each is provided in the following sections.

1.Using this document for orientation, find the base part number and note any installed options as well as input voltage requirements.

2.Mount/install the base in the panel (see instructions below for panel mount or flush mount options).

3.Ensure that incoming power is off and connect to the base power supply connector (see section "Wiring the F4T Base").

4.Make note of any I/O module slot dependencies installing each one into an appropriate base slot (see graphic entitled F4T Slot Dependencies under "Flex Module Installation").

5.Connect the wires from each field device to the associated I/O module connector (see section "Wiring the Modules").

6.Insert all wired I/O connectors onto the applicable modules and apply power to the base.

7.Connect the controller to a computer running Composer™ software using an Ethernet cable (see section "Connecting the F4T Base to a PC").

Dimensions

Panel Mount

Front View

Side View

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• 4 •

Chapter 2 Install and Wire

Dimensions (cont..)

Installing the F4T

Panel Mounting the Base

1.Make the panel cutout using the mounting template dimensions above and insert the case assembly into the panel cutout.

2.While pressing the case assembly firmly against the panel, slide the Retention Collar over the back of the controller until the gasket is compressed.

3.For an IP65 seal, alternately place and push the blade of a screwdriver against each of the the four corners of the retention collar assembly. Apply pressure to the face of the controller while pushing with the screwdriver. Don't be afraid to apply enough pressure to properly install the controller. The seal system is compressed more by mating the retention collar tighter to the front panel. If you can move the case assembly back and forth in the cutout, you

do not have a proper seal. The tabs on each side of the retention collar have teeth that latch into the ridges on the sides of the controller. Each tooth is staggered at a different depth from the front so that only one of the tabs, on each side, is locked onto the ridges at a time.

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Chapter 2 Install and Wire

Dimensions (cont..)

Flush Mounting the Base

1.Fabricate the mounting panel per the flush mount vertical or horizontal panel template

(shown below).

2.Press PEM standoffs (based on panel material) into mounting panel per supplier recommendations.

PEM Standoffs

	PEM P/N	S0-632-6 Z1	S0S-632-6	S0A-632-6	S04-632-6
		Steel	Stainless		Hardened
	Material			Aluminum	Stainless
		(Zinc Plated)	Steel
					Steel

3.Insert the controller through the flush mount bracket and lock it in place with the retention collar.

4.Mount flush mount bracket to back panel with (6) #6-32 screws.

5.Apply overlay to front panel.

Note:

Overlay is provided by the user.

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Chapter 2 Install and Wire

Dimensions (cont..)

Watlow F4T Install & Troubleshooting

• 7 •

Chapter 2 Install and Wire

Electrical Isolation

				No Isolation
						Digital Inputs & Outputs
Controller Power Supply
24 to 28VÎ (dc)	Safety Isolation
24 to 28VÅ (ac)
						Switched DC, Open Collector,
100 to 240VÅ (ac)				No Isolation
						Process outputs
Isolation				Low-voltage
						Analog Inputs
		Controller		Isolation
Safety		Low Voltage Power Bus
				No Isolation		USB Host
Mechanical Relay,
Solid-State Relay,	Safety Isolation
NO-ARC Relay
Outputs				Low-voltage		USB Device
				Isolation
				Low-voltage
						Ethernet Port
				Isolation
			Low-voltage Isolation: 42V peak
			Safety Isolation: 2300VÅ (ac)

Wiring the F4T Base

Identify Connector Pinout

Power and Communications

Terminal

Function

98Power input: ac or dc+

99Power input: ac or dc-

- - - -	- - - -
CX	Inter-module Bus A
CY	Inter-module Bus B
CZ	Inter-module Bus Common
- - - -	- - - -

GND	Functional earth ground

Warning: Óç

Use National Electric (NEC) or other countryspecific standard wiring and safety practices when wiring and connecting this controller to a power source and to electrical sensors or peripheral devices. Failure to do so may result in damage to equipment and property, and/or injury or loss of life.

Avertissement : Óç

Utilisez les pratiques de câblage et de sécurité de National Electric (NEC) ou les normes spécifiques au pays lors du câblage et de

la connexion de ce régulateur à une source d'alimentation et aux capteurs électriques ou aux équipements périphériques. Tout manquement à cette règle pourrait provoquer des dégâts sur l'équipement et le matériel, et/ou des blessures personnelles ou des décès.

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Chapter 2 Install and Wire

Wire Size and Torque for Screw Terminations

•0.0507 to 3.30 mm2 (30 to 12 AWG) single-wire termination or two 1.31 mm2 (16 AWG)

•0.57 Nm (5.0 lb.-in.) torque

Power Requirements

•85 to 264VÅ (ac), (Models F4T _ _ [1, 2, 3, 4])

•20.4 to 30.8VÅ (ac) or Î (dc), (Models F4T _ _ [5, 6, 7, 8])

•50 to 60 Hz

•Power consumption 23W, 54VA

•Inter-module Bus (CX, CY, CZ)

•Do not route network wires with power wires. Connect inter-module bus wires in daisy-chain fashion when connecting multiple devices in a network

•The power supply within the controller base meets all power requirements for any and all inserted modules.

Flex Module (FM) Characteristics

Many of the modules appear to look alike at first glance, therefore, it is always recommended that the module part number be noted and verified

prior to plugging it into any of the available slots in a base. Each module is identified with a part number located on the back side of the assembly right below the connector (black label), as seen in the graphic to the right.

Flex Module Installation - To view video go to www.watlow.com/F4T

Some Flex Modules require that they be installed in specific slots within the base. As an example, if a communications card is to be installed, it must be placed in slot 6. Slot 6 can receive and accept any card, however, it is the only slot that allows for a communication card (see table to the right).

Slots are keyed such that modules cannot be inserted upside down. Insert modules with the component side facing the right when viewing the controller from the rear.

Installing the modules:

1.Note the part number to determine the types of inputs and outputs available to be connected in step 7.

2.Turn off power to the controller.

3.Select a slot for the module (see table to right). If replacing a module, remove the old module.

4.Affix corresponding slot number labels

(provided) to the module and to the removable screw terminal block.

Flex Module - Slot Dependencies

Module Type

Dual SSR *

FMHA-K

Communications

FMCA-(2)

Slot #

1 2 3 4 5 6

Y Y N Y Y N

N N N N N Y

All Other Modules	Y Y Y Y Y Y
Y = Allowed	N = Not allowed

* Reguires two adjacent slots

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Chapter 2 Install and Wire

5.With the component side of the module facing right (viewing the controller from the rear) insert the module in to the slot until it latches.

6.Remove the screw terminal block from the module.

7.Wire field devices to the appropriate terminals (see. Wiring details for each input and output are provided in the following sections.

8.Reconnect the wired screw terminal block to the module. Be sure to reconnect the terminal block to the correct module.

9.Restore power to the controller.

Note:

If a module is swapped out and replaced with a different type or moved to another open slot after configuration, the controller will no longer function properly without being reconfigured using Composer™ software.

Note:

To minimize the possibility of unwanted downtime due to a module being removed and installed into the wrong slot, affix the slot number labels (as directed in step 4 above) to each module (as shown in the graphic below, white circle) and each removable screw terminal block.

Wiring the Modules

Prior to wiring any of the I/O modules described in this document it is recommended that the warnings and notes listed below be reviewed.

CAUTION: ç

To prevent damage to the controller, do not connect wires to unused terminals.

AVERTISSEMENT: Pour prévenir tout endommagement du régulateur, ne pas faire de raccordements à des bornes inutilisées.

CAUTION ç Quencharc Note:

Switching pilot duty inductive loads (relay coils, solenoids, etc.) with the mechanical relay, solid-state relay or open collector output options requires the use of an R.C. suppressor for AC load or a diode for a DC load.

AVERTISSEMENT: les charges inductives de commutation de lampes témoins (bobines de relais, solénoïdes, etc.) avec des options de sortie à relais mécanique, de relais statique ou collecteur ouvert requièrent un dispositif antiparasite R.C.

Watlow F4T Install & Troubleshooting

• 10 •

Chapter 2 Install and Wire

Place the Quencharc directly across the external coil as shown below. For a DC load, place the cathode of the diode, to the positive voltage of the load and the anode to the ground of the load.

User Load

L_	N
Quencharc
Watlow Part #: 0804-0147-0000
K_

Note:

It is possible that the terminal strip labeling for any given module could be the same. For example, if a Thermocouple input module is installed in slot 1 and 2, each slot would have S1 and R1 on its label. When referencing either of these inputs the differentiating factor is the module slot number, therefore the reference should be input 1 of slot number x.

Note:

Maintain electrical isolation between the analog input, digital input-outputs, switched dc/ open collector outputs and process outputs to prevent ground loops.

Note:

The F4T meets IP10 requirements when the empty slots have slot caps installed.

Note:

Maximum wire size and torque for screw terminations:

•0.0507 to 3.30 mm2 (30 to 12 AWG) single-wire termination or two 1.31 mm2 (16 AWG)

•0.57 Nm (5.0 lb.-in.) torque

Input Connections

Thermocouple

S1

R1

FM [M, L] A - [L, U, Y] _ _ A - A _ _ _

•Grounded or ungrounded sensors, greater than 20MΩ input impedance, 2kΩ source resistance max.

•3 microampere open-sensor detection

•Thermocouples are polarity sensitive. The negative lead (usually red) must be connected to S terminal

•To reduce errors, the extension wire for thermocouples must be of the same alloy as the thermocouple.

Thermocouple (High Density) FMHA - RAAA - A _ _ _

-S1

+R1

-S2

+R2

-S3

+R3 - S4

+R4

•Grounded or ungrounded sensors, greater than 20MΩ input impedance, 2kΩ source resistance max

•3 microampere open-sensor detection

•Thermocouples are polarity sensitive. The negative lead (usually red) must be connected to S terminal

•To reduce errors, the extension wire for thermocouples must be of the same alloy as the thermocouple

Watlow F4T Install & Troubleshooting

• 11 •

Chapter 2 Install and Wire

RTD

T1

S3 S1

S1 R1

2-wire RTD

FM [M, L] A - [L, U, Y*] _ _ A - A _ _ _

S2 T1

S3 S1

S1 R1

3-wire RTD

•2 or 3-wire platinum, 100 and 1,000 Ω @ 32°F (0°C) calibration to DIN curve

(0.00385 Ω/Ω/°C)

•RTD excitation current of 0.09 mA typical. Each ohm of lead resistance may affect the reading by 2.55°C for a 100 ohm platinum sensor or

0.25°C for a 1000 ohm sensor.

•For 3-wire RTDs, the S1 lead (usually white) must be connected to R1.

*This option does not support 3-wire RTDs

Lead Wire Resistance

Each wire for 2-Wire RTDs, not to exceed 10 ohms maximum.

AWG Ohms/1000ft

14 2.575

16 4.094

18 6.510

20 10.35

22 16.46

24 26.17

26 41.62

28 66.17

Note:

3-wire RTD's self-compensate for lead wire resistance up

to 10 Ω of wire resistance.

RTD (High Density)

FMHA - RAAA - A _ _ _

S1

R1

S2

R2

S3

R3

S4

R4

2-wire RTD

•Platinum, 100 and 1,000 Ω @ 32°F (0°C) calibration to DIN curve (0.00385 Ω/Ω/°C)

•RTD excitation current of 0.09 mA typical. Each ohm of lead resistance may affect the reading by 2.55°C for a 100 ohm platinum sensor or 0.25°C for a 1000 ohm sensor (see table to right)

Lead Wire Resistance

Each wire for 2-Wire RTDs, not to exceed 10 ohms maximum.

AWG	Ohms/1000ft
14	2.575
16	4.094
18	6.510
20	10.35
22	16.46
24	26.17
26	41.62
28	66.17

Process

+ T1

- S1

amperes

FM [M, L] A - [L, U] _ _ A - A _ _ _

•0 to 20 mA @ 100 Ω input impedance

•0 to 10VÎ (dc) @ 20 kΩ input impedance

•0 to 50 mVÎ (dc) @ 20 MΩ input impedance

•Scalable

- S1 + R1

volts

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Chapter 2 Install and Wire

Input Connections (cont..)

Process (High Density)			FMHA - RAAA - A _ _ _
	Volts	Amps	• 0 to 20 mA @ 100 Ω input impedance
-	S1	- S1	• 0 to 10VÎ (dc) @ 20 kΩ input impedance
+	R1	+ R1
-	S2	- S2	• 0 to 50 mVÎ (dc) @ 20 MΩ input impedance
+	R2	+ R2	• Scalable
-	S3	- S3
+	R3	+ R3
-	S4	- S4
+	R4	+ R4
Potentiometer		FM [M, L] A - [L, U] _ _ A - A _ _ _
		• Potentiometer: 0 to 1,200Ω

CW S_

CCW R_

Potentiometer (High Density) FMHA - RAAA - A _ _ _

CW S_

• Potentiometer: 0 to 1,200Ω

CCW R_

CW S_

CCW R_

CW S_

CCW

R_

CW S_

CCW

R_

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Chapter 2 Install and Wire

Input Connections (cont..)

Thermistor

S1

R1

FM [M, L] A - [M, T] AAA - A _ _ _

•>20 MΩ input impedance

•0 to 40kΩ, 0 to 20kΩ, 0 to 10kΩ, 0 to 5kΩ

•2.252kΩ and 10kΩ base at 77°F (25°C)

•Drive current is 109 μA as a constant current source

•User-selectable curves for Alpha Technics, BetaTHERM and YSI

•User-scaling support for Steinhart-Hart coefficients

	Thermistor	Base R	Alpha	Beta	YSI
	Curve Setting	@ 25 ºC	Technics	Therm
	Curve A	2.252K	Curve A	2.2K3A	004
	Curve B	10K	Curve A	10K3A	016
	Curve C	10K	Curve C	10K4A	006
		Use Steinhart-Hart equation coefficients (A, B and
	Custom	C) from thermistor manufacturer corresponding to
		the terms of the Steinhart-Hart equation:
		1 / T = A + Bln(R) + C (ln(R))3

Thermistor (High Density)

FMHA - PAAA - A _ _ _

S1

R1

S2

R2

S3

R3

S4

R4

•>20 MΩ input impedance

•0 to 40kΩ, 0 to 20kΩ, 0 to 10kΩ, 0 to 5kΩ

•2.252kΩ and 10kΩ base at 77°F (25°C)

•Drive current is 109 μA as a constant current source

•User-selectable curves for Alpha Technics, BetaTHERM and YSI

•User-scaling support for Steinhart-Hart coefficients

	Thermistor	Base R	Alpha	Beta	YSI
	Curve Setting	@ 25 ºC	Technics	Therm
	Curve A	2.252K	Curve A	2.2K3A	004
	Curve B	10K	Curve A	10K3A	016
	Curve C	10K	Curve C	10K4A	006
		Use Steinhart-Hart equation coefficients (A, B and
	Custom	C) from thermistor manufacturer corresponding to
		the terms of the Steinhart-Hart equation:
		1 / T = A + Bln(R) + C (ln(R))3

Watlow F4T Install & Troubleshooting

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Chapter 2 Install and Wire

Input Connections (cont..)

Digital Input

B2

D2

FMLA - YEBA - A _ _ _

•Update rate 10Hz

•Voltage

-Max. input 36V at 3mA

-Input inactive when =< 2V

-Input active when => 3V at 0.25mA

•Dry contact

-Input inactive when =>

500Ω

-Input active when =<

100Ω

-Max. short circuit 13mA

Voltage Input

Dry Contact

common

B2

common

B2

Vdc

D2

D2

Vdc

Digital Input (High Density)					FMHA - CAAA - A _ _ _
Common	B1	•	Voltage				Voltage Input		Dry Contact
DC Input	D1		- Max. input 36V at 3mA
DC Input	D2		-	Input inactive when =<			B1	common
DC Input	D3
				2V
DC Input	D4		-			when => 3V
DC Input	D5			Input active			Vdc
DC Input	D6			at 0.25mA					D_
Internal Supply	Z1	•	Dry contact
									24 Vdc
			- Input inactive when =>				D_
				500Ω
			- Input active when =<						Z1
				100Ω
			- Max. short circuit 13mA

Current Transformer FMMA - C _ _ A - A _ _ _

T1

S1

•Input range is 0 to 50 mA (ac).

•Current transformer part number: 16-0246

•100 Ω input impedance

•Response time: 1 second maximum

•Accuracy +/-1 mA typical

Watlow F4T Install & Troubleshooting

• 15 •

Chapter 2 Install and Wire