Watlow Electric Series 97 User's Manual

S E R I E S 9 7

An Over-temperature

Limit Controller

With User Defined

Messages

Watlow’s SERIES 97 is a microprocessor-based controller with a single input, second auxiliary input and four outputs. Input one is used to measure temperature from a sensor. Input two can be utilized as a remote reset switch or a hardware lockout switch. With up to four outputs, the controller is versatile in handling applications that require a high/low limit, alarms, retransmit and communications.

The control is so user friendly that it can be set up to display safety and limit messages created by the end user to meet the exact application need.

The SERIES 97 limit controller is added to thermal applications to limit over-temperature conditions. The

SERIES 97 limit controller provides safety assurance against instances where a high temperature runaway condition could occur from a shorted input sensor or an output device that could fail in a closed position.

The SERIES 97 is recommended for any application where thermal runaway could result in large product scrap costs, affect operator safety, cause damage to equipment or create a fire hazard.

The SERIES 97 is manufactured by ISO 9001 registered

Watlow Winona and reliably backed up by a three-year warranty.

Features and Benefits

Programmable messages

• Controller can be set up to display user programmed limit message

NEMA 4X (IP65)

• Water and corrosion resistant; front panel can be washed down

Microprocessor-based

• Accurate set point settings and quick output response

Second auxiliary input

• Remote reset capability

Four outputs

• Handles high/low limit, alarms, communication and retransmit requirements

Software and hardware lockouts

• High security

WIN-97-1203

1241 Bundy Boulevard

Winona, Minnesota 55987-5580 USA

Phone: +1 (507) 454-5300

Fax: +1 (507) 452-4507

Internet: www.watlow.com

e-mail: [email protected]

Registered Company

Winona, Minnesota USA

© 2003 Watlow Electric Manufacturing Company Printed in the USA on Recycled Paper, 15 Percent Postconsumer Waste

Specifications

Controller

• Microprocessor-based

• Universal input 1, auxiliary input 2, 4 outputs

• Input sample period; Single input 10Hz (100 msec), dual input 5Hz (200 msec) digital filter adjustable

• Display update; 2Hz (500 msec), time filter adjustable

• Input/Output/Communication isolation

• Displayed in °C, °F

Operator Interface

• Dual 4-digit LED displays: upper 10.2 mm (0.4 in.), lower 6.2 mm (0.244 in.)

• Advance, Up Arrow, Down Arrow, Reset tactile keys

Standard Conditions For Specifications

• Ambient temperature 77°F (25°C) ±3°C, rated line voltage, 50 to 60Hz, 0 to 90 percent RH non-condensing,

15 minute warm-up

Universal Input 1

Thermocouple

• Type J, K, T, N, C (W5), E, PTII, D (W3), B, R, S thermocouple types

• >20M

Ω input impedance

• Maximum 20

Ω source resistance

• 30mA open detection bias

RTD

• 2- or 3-wire platinum, 100

Ω

• JIS and DIN curves

• Whole or tenth degree indication

• 150µA nominal RTD excitation current

Input 2

Event Input

• Contact or voltage

• 20K

Ω input impedance

• Voltage input: event high state 3 to 36V Î (dc), event low state 0 to 2V Î (dc)

• Resistance/contact input: event high state > 23k

Ω

, event low state 0 to 2k

Ω

Output Types

Open Collector/Switched DC

• Open collector configuration:

Maximum voltage 42V Î (dc)

Maximum current 200mA

Maximum “on” resistance 1.1

Ω

Maximum offstate leakage current 100µA

• Switched dc configuration:

Switched dc supply voltage 22 to 28V Î (dc) dc supply current limited to 30mA

Solid State Relay

• Optically isolated

• Zero cross switched

• Without contact suppression

• Minimum load current 0.5mA rms

Solid State Relay (cont.)

• Maximum current 0.5A rms at 20 to 280V Å (ac)

• Maximum offstate leakage current 10µA rms

• For resistive loads only, must use RC suppression for inductive loads

Electromechanical Relay

• Form C contact configuration

• Minimum load current 10mA @ 5V Î (dc)

• Rated resistive and inductive loads: 2A @ 250V Å (ac) or 30V Î (dc) maximum

• Electrical life 100,000 cycles at rated current

• For resistive loads only, must use RC suppression for inductive loads

Retransmit

• Range selectable: 0-20mA, 4-20mA, 0-5V Î (dc),

1-5V Î (dc), 0-10V Î (dc)

• 0 to 10V Î (dc) voltage output into a 1,000

Ω minimum load resistance

• 0 to 20mA current output into an 800

Ω maximum load resistance

• Resolution:

Vdc ranges = 2.5mV nominal mA ranges = 5µA nominal

• Calibration accuracy:

Vdc ranges = ±15mV mA ranges = ±30µA

• Temperature stability 100ppm/°C

Communications

• EIA/TIA-485, EIA/TIA-232

• Opto-isolated

• Modbus TM RTU protocol

• 1200, 2400, 4800, 9600, 19200 baud rates

• 32 maximum units can be connected (With additional

485 repeater hardware, up to 247 units may be connected)

Accuracy

• Input ranges

Type J:

Type K:

Type T:

Type N:

Type E:

Type C(W5):

Type D(W3):

Type PTII:

Type R:

Type S:

Type B:

DIN:

JIS:

0 to

-200 to

-200 to

750°C or

-200 to 1250°C or

350°C or

0 to 1250°C or

900°C or

32 to 1382°F

-328 to 2282°F

-328 to 662°F

32 to 2282°F

-328 to 1470°F

0 to 2315°C or 32 to 4200°F

0 to 2315°C or 32 to 4200°F

0 to 1393°C or 32 to 2540°F

0 to 1450°C or 32 to 2642°F

0 to 1450°C or 32 to 2642°F

870 to 1700°C or 1598 to 3092°F

-200 to 800°C or -328 to 1472°F

-200 to 630°C or -328 to 1166°F

Modbus TM is a trademark of AEG Schneider Automation.

Thermocouple Inputs

• Calibration accuracy ±0.1 percent of span ±1˚C at standard conditions

Exceptions:

Type T; 0.12 percent of span for -200°C to -50°C

(-328°F to -58°F)

Types R and S; 0.15 percent of span for 0°C to 100°C

(32°F to 212°F)

Types B; 0.24 percent of span for 870°C to 1700°C

(1598°F to 3092°F)

• Accuracy span: 540°C (1000°F) minimum

• Temperature stability: ±0.1 degree per degree change in ambient

RTD Inputs

• Calibration accuracy ±0.1 percent of span ±1˚C at standard conditions

• Accuracy span: 540°C (1000°F) minimum

• Temperature stability: ±0.05 degree per degree change in ambient

Agency Approvals

• FM Class 3545, File # J.I. 1B5A6.AF

• NEMA 4X, IP65

• CE 89/336/EEC, electromagnetic compatibility directive

CE 73/23/EEC, low-voltage directive

Terminals

• Touch safe

• 22 to 12 AWG

Power

• 100-240V Å (ac) +10 percent, -15 percent; 50/60Hz,

±5 percent

• 24-28V Å (ac) or V Î (dc) +10 percent, -15 percent;

50/60Hz, ±5 percent

• 7.0VA maximum power consumption

• Data retention upon power failure via nonvolatile memory

Operating Environment

• 0 to 65°C (32 to 149°F)

• 0 to 90 percent RH, non-condensing

• Storage temperature: -40 to 85°C (-40 to 185°F)

Dimensions

• Width 52 mm (2.05 in.)

• Height 52 mm (2.05 in.)

• Length 107 mm (4.2 in.)

• Depth behind panel surface 98.4 mm (3.875 in.)

• Approximate controller weight 0.2 kg (0.4 lbs)

Allowable Operating Ranges

Type J:

Type K: 1.0

-270 to 1370°C or -454 to 2500°F

0.1 -199.9

to 999.9°C or -199.9 to 999.9°F

Type T:

1.0

0 to 815°C or 32 to 1500°F

0.1

0.0

to 815.0°C or 32.0 to 999.9°F

1.0

-270 to 400°C or -454 to 750°F

0.1 -199.9

to 400.0°C or -199.9 to 750.0°F

Type N: 1.0

0 to 1300°C or 32 to 2372°F

0.1

0.0

to 999.9°C or 32.0 to 999.9°F

Type E: 1.0

-270 to 800°C or -454 to 1470°F

0.1 -110.0

to 800.0°C or -199.9 to 999.9°F

Type C: 1.0

0 to 2315°C or 32 to 4200°F

0.1

0.0 to 999.9°C or 32.0 to 999.9°F

Type D: 1.0

0 to 2315°C or 32 to 4200°F

0.1

0.0

to 999.9°C or 32.0 to 999.9°F

Type PTII: 1.0

0 to 1395°C or 32 to 2543°F

0.1

0.0

to 999.9°C or 32.0 to 999.9°F

Type R: 1.0

Type S: 1.0

Type B: 1.0

0

0

0 to 1760°C or to 1760°C or to 1816°C or

32 to

32 to

32 to

3200°F

3200°F

3300°F

DIN

JIS

1.0

-200 to 800°C or -328 to 1472°F

0.1 -199.9

to 800.0°C or -199.9 to 999.9°F

1.0

-200 to 630°C or -328 to 1166°F

0.1 -199.9

to 630.0°C or -199.9 to 999.9°F

Functionality Matrix

Input 1

Input 2

Output 1

Output 2

Output 3

Output 4

Universal

Input

High/ High/

Low Low

232

485

Event Limit Alarm Retransmit Comm

Note: These specifications are subject to change without prior notice.

Ordering Information

SERIES 97 9 7 - -

Microprocessor-based

1 ⁄

16

DIN with universal input 1, thermocouple and RTD.

Options include: software, power supply, input 2, four outputs and display color

Power Supply

A = 100-240V ı (ac/dc)

B = 24-28V ı (ac/dc)

Auxiliary Input 2

0 = None

1 = Event input

Limit Output 1

D = Electromechanical relay, Form C,

2A, without RC suppression

Alarm Output 2

A = None

C = Switched dc output/open collector

D = Electromechanical relay, Form C,

2A, without RC suppression

K = 0.5A solid state relay without

RC suppression

Alarm Output 3

A = None

D = Electromechanical relay, Form C,

2A, without RC suppression

Auxiliary Output 4

A = None

D = Electromechanical relay, Form C,

2A, without RC suppression

R = 232 Communications

U = 485 Communications

M = Universal Retransmit, range selectable: 0-20mA,

4-20mA, 0-5V Î (dc), 1-5V Î (dc),

0-10V Î (dc)

Software/Preset Parameters

00 = Standard software

Display/Overlay

Upper/Lower

RR = Red/Red display

RG = Red/Green display

GR = Green/Red display

GG = Green/Green display

52.070 mm

(2.050 in.)

1 2 3 4 %

96

RESET

52.070 mm

(2.050 in.)

107.747 mm

(4.242 in.)

98.425 mm

(3.875 in.)

Panel Cutout

44.958 mm x 44.958 mm

(1.77 in. X 1.77 in.)

9.322 mm

(0.367 in.)

Customer's Front Panel

59.182 mm

(2.330 in.)

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