Partlow MRC 7700 Operating Manual

Form 3029 • Price $32.00

The Partlow Corporation • Two Campion Rd. • New Hartford, NY 13413 USA • 315-797-2222 • FAX 315-797-0403

Edition 4 • © April 1997

CIRCLE CHART RECORDER; RECORDER CONTROLLER; RECORDER CONTROLLER

PROFILER FOR MEASURING AND CONTROLLING RELATIVE HUMIDITY

MRC 7700

Installation, W iring, Operation Manual

PAGE 2

nformation in this installation, wiring, and operation manual is subject to change without notice. One

of shipment. Extra copies are available at the price published on the front cover.

Coyright © April 1997, The Partlow Corporation, all rights reserved. No part of this publication may be reproduced, transmitted, transcribed or stored in a retrieval system, or translated into any language in any form by any means without the written permission of the Partlow Corporation.

This is the Fourth Edition of the MRC 7700 Recording Profile Controller Manual. It was written and produced entirely on a desk-top-publishing system. Disk versions are available by written request to the Partlow Advertising and Publications Department.

manual is provided with each instrument at the time

We are glad you decided to open this manual. It is written so that you can take full advantage of the features of your new MRC 7700 microbased chart recording profile controller.

It is strongly recommended that Partlow equipped applications incorporate a high or low limit protective device which will shut down the equipment at a preset process condition in order to preclude possible damage to

NOTE

property or products.

CAUTION: READ THIS MANUAL

THE INTERNATIONAL HAZARD SYMBOL IS FOUND ADJACENT TO THE PLA TEN HOLD DOWN SCREW. IT IS IMPORTANT T O READ THIS MANUAL BEFORE INSTALLING OR COMMISSIONING THE UNIT.

Table of Contents

SECTION 1 - GENERAL Page Number

1.1 Product Description 5

SECTION 2 - INSTALLATION & WIRING

2.1 Installation & Wiring 8

2.2 Unpacking 8

2.3 Location 8

2.4 Mounting 8

2.5 Preparation for Wiring 9

2.6 Wiring Connections 14

SECTION 3 - CONFIGURATION

3.1 Configuration (Set Up) 21

3.2 Configuration/Jumper Positioning 22

3.3 Operation Summary 22

3.4 Start Up Procedures 22

3.5 Front Panel Operation 23

PAGE 3

SECTION 4 - OPERATION

4.1 Operation 43

4.2 Alarm Operation 47

4.3 Tune Mode Operation 48

SECTION 5 - SERVICE

5.1 Service 51

5.2 Changing Charts 51

5.3 Changing Pens 51

5.4 Calibration 52

5.5 Test Mode 57

5.6 Troubleshooting and Diagnostics (Error Code Definitions) 61

APPENDICES

A - Board Layouts and Jumper Positioning

A-1 Processor Board 69 A-2 SPST Relay/SSR Driver Output Board 70 A-3 SPDT Relay/SSR Driver Output Board 71

A-4 Current Output Board 72 B - Glossary 73 C - Order Matrix 76 D - Product Specifications 77 E - Software Reference Sheet 81 F - Profile Developement Sheet 85 Warranty Inside back cover

PAGE 4

FIGURES & TABLES

Figure 1-1 Recorder Description 5 Figure 1-2 Recorder Display 7 Figure 2-1 Installation Panel Dimensions Conduit 9

Opening Locations Figure 2-2 Noise Suppression 11 Figure 2-3 Noise Suppression 11

Figure 2-4 Board and Terminal Locations 14 Figure 2-5 AC Power Input 15 Figure 2-6 Thermocouple Inputs 15 Figure 2-7 RTD Inputs 16 Figure 2-8 Milliamp and Volt Inputs 16 Figure 2-9 Remote Profile Run/Hold 17 Figure 2-10 Remote Setpoint Input VDC, mADC 17

Figure 2-11 Digital Communications 18 Figure 2-12 Relay Output 18

Figure 2-13 SSR Driver Output 19 Figure 2-14 Current Output 19 Figure 2-15 Transmitter Power Supply Input 20 Figure 2-16 Position Proportioning Control Output 20 Figure 3-1 Keypad Features 25 Figure 5-1 Changing Pens 50 Table 3-1 Program Mode Configuration Procedure 30 Table 3-2 Tune Mode Configuration Procedure 37 Table 3-3 Alarm Set Mode Calibration Procedure 39 Table 3-4 Profile Entry Mode Configuration Procedure 39 Table 3-5 Enable Mode Configuration Procedure 41 Table 4-1 Profile Continue Mode 44 Table 5-1 Calibration Procedures 53 Table 5-2 Test Procedures and Description 58

FLOW CHARTS

Flow - Calibration 52 Flow - Enable Mode 42 Flow - Program Mode 26 Flow - Test Mode 57 Flow - Tune Mode 36 Flow - Alarm Set 38

Product Description 1.1

1.1.1 GENERAL

The instrument is a microprocessor based circular chart Recording Profile Controller capable of measuring, displaying, recording and controlling Relative Humidity and/or Temperature using Dry Bulb and Wet Bulb temperatures from a variety of inputs. Two process sensor input terminal boards are provided on each instrument. To perform the Relative Humidity calculations both inputs must be the same type. (2- RTD, 2-J T/C, for best results a matched pair of sensors should be used). The instruments can be specified as either a single or as a dual pen model. The second pen can be selected as a profile control or a single setpoint control.

Recording, control functions, alarm settings, profile entry and other parameters are easily entered via the keypad. All user data can be protected from unauthorized changes by the Enable mode security system, and is protected against memory loss, as a result of AC power outage, by battery back-up.

The process sensor input for each terminal board is user configurable to directly connect to either thermocouple, RTD, VDC, or mADC inputs. Changes in input type can easily be made by the user. Thermocouple and RTD linearization, as well as thermocouple cold junction compensation, are performed automatically. The instrument process variable inputs are isolated. An isolated 24 VDC regulated transmitter power supply can be provided in the instrument for use with up to two 4 to 20 mADC process sensor transducers.

PAGE 5

The instrument can be ordered to operate on either 115 VAC or 230 VAC power at 50/60 Hz. The 230 VAC option includes a switch for selecting either 230 VAC or 115 VAC operation.The Instrument is housed in a structural foam enclosure suitable for panel or surface mounting.

FIGURE 1-1

Pen 1 Display

Pen 1 Reset Key

Scroll Key

Up Key

Down Key

Pen 2 Reset Key

Pen 2 Display

PAGE 6

1.1.2 RECORDING

The instrument records the selected process variable on a 10-inch circular chart. One box of standard charts is provided with each recorder. Charts are available in a wide selection of ranges. Chart rotation speed is programmable from 0.1 to 999.9 hours per revolution in 0.1 hour increments. The instrument can be ordered with one or two pens. Pen 1 is red and Pen 2 is green. Pens are the disposable fiber-tip type.

1.1.3 DISPLAYS

Each instrument is provided with a digital display and status indicator for each pen provided (See Figure 1-1). The display may be configured to display the Dry Bulb Temperature, Wet Bulb Temperature, or the Relative Humidity as the process value. During configuration the display(s) is/are used to show the enabled modes of operation and the parameter codes.

The display in the upper right corner is for Pen 1, the display in the lower right corner is for Pen 2 (if provided). The upper display provides status indication for the Manual mode operation, Output 1, Output 2, Alarm , Setpoint, negative value, degrees C, degrees F, and engineering units, Ramp, Soak and six Segment lamps. The lower display( if provided) includes status indicators for Manual mode operation, Output 1, Output 2 , Alarm, Setpoint, negative value, degrees C, degrees F, engineering units. (Relative Humidity will be indicated in engineering units.) See Figure 1-2 (page 7).

Display resolution is programmable for 0.1 or 1 degree for thermocouple and RTD inputs, and none, one, two or three decimal places for other input types. Relative Humidity will be indicated as whole numbers only.

1.1.4 CONTROL

The instrument can be provided with relay, solid state relay driver and milliamp DC outputs. Instruments can be programmed for on-off, time proportioning, current proportioning or position proportioning control depending upon the output(s) present. Relay(s) and Solid State Relay Driver(s) may be assigned to be on or off during the profile ramp and soak of a profile segment. Switching between the Control mode and the Manual mode of operation is easily accomplished with a dedicated key on the keypad. Switching is bumpless from the Control to the Manual mode, and while in manual, adjustment of proportional outputs is possible. Each pen of a dual pen recording controller is provided with its own AUTO/MANUAL key . Other standard control features include proportional control output limits, setpoint limits, anti-reset windup and a unique Automatic Transfer function. If configured, the Automatic Transfer function allows manual control of the proportional output until the process reaches the setpoint at which time the instrument will go into the Control mode of operation.

1.1.5 ALARM

An Alarm indicator is standard for each pen. Two alarm functions are provided for each pen and the alarm indicator will light if either alarm for that pen is on. Alarm settings are programmable. Alarm type may be selected as process direct or reverse (high or low), deviation from setpoint direct or reverse, and deviation band open or closed within the band. Alarm outputs can be provided by assigning any relay(s) Single Pole/Single Throw (SPST) or Solid State Relay (SSR) driver to the respective alarm.

1.1.6 PROCESS VALUE RE-TRANSMISSION OUTPUT

If an instrument is specified with mADC current output(s), any of the outputs may be programmed to operate as a process value re-transmission output. The output is scaleable but can not be used as a control output while assigned as a process value re-transmission output.

1.1.7 DIGITAL COMMUNICATIONS

The instrument can be ordered with a Digital Communications option that provides the capability of bi-directional communications with a supervisory computer. A dual pen instrument can have an individual address selected for each pen.

FIGURE 1-2

Pen 1 Display

PAGE 7

Setpoint

Minus Sign

Setpoint

SEG1

RAMP SOAK

SEG2 SEG3 SEG4 SEG5 SEG6

OUT2OUT1MAN

ALRM

Digital Display

Pen 2 Display (if Present)

Manual

Output 1

MAN

Output 2

OUT2OUT1

ALRM

Alarm

F U

Minus Sign

Digital Display

PAGE 8

Installation and Wiring 2.1

Read these instructions carefully before proceeding with installation and operation. Electrical code requirements and safety standards should be observed. Installation should be performed by qualified personnel.

CAUTION: The Instrument AC power input is specified in the model number and on the wiring label affixed to the the top center of the platen. Verify the AC power input required by the instrument prior to proceeding with installation.

Unpacking 2.2

Remove the instrument from the carton and inspect for any damage due to shipment. If any damage is noticed due to transit, report and file a claim with the carrier. Write the model number and serial number of the instrument on the inside of the front cover of this Operation Manual for future reference.

Location 2.3

Locate the instrument away from excessive moisture, oil, dust, and vibration. Do not subject the instrument to operating temperatures outside of the 0 to 55° C (32 to 131° F) range.

Mounting 2.4

Figure 2-1 (page 9) shows an installation view and physical dimensions for a panel mounted instrument.

The panel where the instrument will be mounted must provide rigid support for the approximately 20 pound instrument. Adjacent instruments may be mounted within a minimum of 2 inches horizontally and 3 inches vertically, providing that proper panel support is supplied. PANEL MOUNTING HARDWARE REQUIRED: (not provided with instrument)

(4) 1/4"-20 x 2" flat head bolts w/nuts (4) appropriate lock washers

PANEL MOUNTING:

1) Cut panel opening to the dimensions illustrated in Figure 2-1 (page 9).

2) Insert the instrument in the panel opening. Firmly fasten the instrument to the panel using the nuts, bolts and lock washers.

SURFACE MOUNTING:

1) Install the mounting brackets, ordered separately, on the vertical sides of instrument housing. Use the brackets to fasten the instrument to the surface.

FIGURE 2-1

)

EC1

20.7 mm) (190.5 mm)

(384.2 mm)

WIDTH OF COVER

(65.9 mm)2

DIA.(7.1mm)

(342.5 mm)

( 354 mm)

Panel cut-out for flush mounting

PAGE 9

16 mm

(64 mm)

2.5"

63.5mm

Preparations for Wiring 2.5

2.5.1 WIRING GUIDELINES

Electrical noise is a phenomenon typical of industrial environments. The following are guidelines that must be followed to minimize the effect of noise upon any instrumentation.

2.5.1.1 INSTALLATION CONSIDERATIONS

Listed below are some of the common sources of electrical noise in the industrial environment:

• Ignition Transformers

• Arc Welders

• Mechanical contact relay(s)

• Solenoids

Before using any instrument near the devices listed, the instructions below should be followed:

1. If the instrument is to be mounted in the same panel as any of the listed devices, separate them by the largest distance possible. For maximum electrical noise reduction, the noise generating devices should be mounted in a separate enclosure.

2. If possible, eliminate mechanical contact relay(s) and replace with solid state relays. If a mechanical relay being powered by an instrument output device cannot be replaced, a solid state relay can be interposed to isolate the instrument.

3. A separate isolation transformer to feed only instrumentation should be considered. The transformer can isolate the instrument from noise found on the AC power input.

4. If the instrument is being installed on existing equipment, the wiring in the area should be checked to insure that good wiring practices have been followed.

PAGE 10

2.5.1.2 AC POWER WIRING

Earth Ground The instrument includes noise suppression components that require an earth ground connection to function. To verify that a good earth ground being is attached, make a resistance check from the instrument chassis to the nearest metal water pipe or proven earth ground. This reading should not exceed 100 ohms.

Neutral (For 115VAC) It is good practice to assure that the AC neutral is at or near ground potential. To verify this, a voltmeter check between neutral and ground should be done. On the AC range, the reading should not be more than 50 millivolts. If it is greater than this amount, the secondary of this AC transformer supplying the instrument should be checked by an electrician. A proper neutral will help ensure maximum performance from the instrument.

2.5.1.3 WIRE ISOLATION/SEGRATION

The instrument is designed to promote proper separation of the wiring groups that connect to the instrument. The AC power wire terminals are located near the top of the instrument boards. The analog signal terminals are located near the bottom of the instrument boards. Maintain this seperation of the wires to insure the best protection from electrical noise. If the wires need to be run parallel with any other wiring type(s), maintain a minimum 6 inch space between the wires. If wires must cross each other, do so at 90 degrees to minimize the contact with each other and reduces cross talk. Cross talk is due to the EMF (Electro Magnetic Flux) emitted by a wire as current passes through it.

2.5.1.4 USE OF SHIELDED CABLE

Shielded cable helps eliminate electrical noise being induced on the wires. All analog signals should be run with shielded cable. Connection lead length should be kept as short as possible, keeping the wires protected by the shielding. The shield should be grounded at one end only. The preferred grounding location is at the sensor, transmitter or transducer.

2.5.1.5 NOISE SUPPRESSION AT THE SOURCE

Usually, when good wiring practices are followed, no further noise protection is necessary. Sometimes in severe electrical environments, the amount of noise is so great that it has to be suppressed at the source. Many manufacturers of relays, contactors, etc., supply "surge suppressors" which mount on the noise source.

For those devices that do not have surge suppressors supplied, RC (resistance-capacitance) networks and/or MOV (metal oxide varistors) may be added.

Inductive Coils - MOV's are recommended for transient suppression in inductive coils connected in parallel and as close as possible to the coil. See Figure 2-2. Additional protection may be provided by adding an RC network across the MOV.

Contacts - Arcing may occur across contacts when the contact opens and closes. This results in electrical noise as well as damage to the contacts. Connecting a RC network properly sized can eliminate this arc.

For circuits up to 3 amps, a combination of a 47 ohms resistor and 0.1 microfarad capacitor (1000 volts) is recommended. For circuits from 3 to 5 amps, connect 2 of these in parallel. See Figure 2-3.

FIGURE 2-2

FIGURE 2-3

0.5 mfd 1000V

220 ohms

115V 1/4W 230V 1W

PAGE 11

Inductive Load

MOV

Inductive Load

PAGE 12

2.5.2 SENSOR PLACEMENT (Thermocouple or RTD)

If the temperature probe is to be subjected to corrosive or abrasive conditions, it should be protected by the appropriate thermowell. The probe should be positioned to reflect true process temperature:

In liquid media - the most agitated area. In air - the best circulated area.

THERMOCUPLE LEAD RESISTANCE

Thermocouple lead length can affect instrument accuracy since the size (gauge) and the length of the wire affect lead resistance.

To determine the temperature error resulting from the lead length resistance, use the following equation:

Terr = TLe * L where; TLe = value from apropriate Table

L = length of leadwire in thousands of feet TABLE 1 Temperature Error in °C per 1000 feet of leadwire

AWG Thermocouple Type No. J K T R S E B N C 10 0.68 1.71 0.76 2.05 2.12 1.15 14.00 2.94 2.53 12 1.08 2.68 1.21 3.30 3.29 1.82 22.00 4.68 4.07 14 1.74 4.29 1.95 5.34 5.29 2.92 35.00 7.44 6.37 16 2.74 6.76 3.08 8.30 8.35 4.60 55.50 11.82 10.11 18 4.44 11.00 5.00 13.52 13.65 7.47 88.50 18.80 16.26 20 7.14 17.24 7.84 21.59 21.76 11.78 141.00 29.88 25.82 24 17.56 43.82 19.82 54.32 54.59 29.67 356.50 75.59 65.27

TABLE 2 Temperature Error in °F per 1000 feet of leadwire

AWG Thermocouple Type No. J K T R S E B N C 10 1.22 3.07 1.37 3.68 3.81 2.07 25.20 5.30 4.55 12 1.94 4.82 2.18 5.93 5.93 3.27 39.60 8.42 7.32 14 3.13 7.73 3.51 9.61 9.53 5.25 63.00 13.38 11.47 16 4.93 12.18 5.54 14.93 15.04 8.28 99.90 21.28 18.20 18 7.99 19.80 9.00 24.34 24.56 13.44 159.30 33.85 29.27 20 12.85 31.02 14.12 38.86 39.18 21.21 253.80 53.79 46.68 24 31.61 78.88 35.67 97.77 98.26 53.40 641.70 136.07 117.49

Example A recorder is to be located in a control room 660 feet away from the process. Usinging 16 AWG, type J themrocouple, how much error is induced?

Terr = TLe * L

TLe = 4.93 (°F/1000 ft) from Table 2 Terr = 4.93 (°F/1000 ft) * 660 ft Terr = 3.3°F

RTD LEAD RESISTANCE

RTD lead length can affect instrument accuracy. Size (gauge) and length of the wire used affects lead length resistance.

To determine the temperature error resulting from the lead length resistance, use the following equation:

Terr = TLe * L where; TLe = value from Table 3 if 3-wire or Table 4 if 2-wire

L = length of leadwire in thousands of feet

TABLE 3 3 Wire RTD AWG No. Error °C Error °F

10 +/-0.04 +/-0.07 12 +/-0.07 +/-0.11 14 +/-0.10 +/-0.18 16 +/-0.16 +/-0.29 18 +/-0.26 +/-0.46 20 +/-0.41 +/-0.73 24 +/-0.65 +/-1.17

TABLE 4 2 Wire RTD

PAGE 13

AWG No. Error °C Error °F 10 +/-5.32 +/-9.31 12 +/-9.31 +/-14.6 14 +/-13.3 +/-23.9 16 +/-21.3 +/-38.6 18 +/-34.6 +/-61.2 20 +/-54.5 +/-97.1 24 +/-86.5 +/-155.6

Example An application uses 2000 feet of 18 AWG copper lead wire for a 3-wire RTD sensor. What is the worst case error due to this leadwire length?

Terr = TLe * L

TLe = +/- .46 (°F/1000 ft) from Table 1 Terr = +/- .46 (°f/1000 ft) * 2000 feet Terr = +/- 0.92 °F

PAGE 14

Wiring Connections 2.6

All wiring connections are typically made to the instrument at the time of installation. Connections are made at the terminal boards provided, two 12 gauge wires maximum, using copper conductors only, except thermocouple inputs. Terminal blocks are designated TB1 through TB13. See Figure 2-2 for the terminal block locations. The number of terminal blocks present on the instrument depend upon the model number/hardware configuration.

FIGURE 2-4

Processor Board

TB 2

1 2

TB3 TB4

TB5

1 2 1 2 3 4 5 1 2 3 4 5

TB1

1 2 3 4 1 2 3 4 1 2 3 4

TB6

RELAY/SSR Driver Board

TB7

TB8

TB9

1 2 3 4

Current Output Board

TB10 TB11 TB12 TB13

1 2

1 2 1 2 1 2

2.6.1 ELECTRICAL CONDUIT OPENINGS

The instrument case will have 3 or 4 conduit openings, depending upon the number of outputs specified. To help minimize electrical noise that may adversely affect the operation of the instrument, the wires groups indicated below should be routed through the conduit opening specified. See Figure 2-1 for conduit opening locations.

EC1- AC Power Input EC2- Analog input and mADC outputs EC3- SPST or SPDT relay or SSR driver outputs EC4- SPST or SPDT relay or SSR driver outputs (provided when > 4 relays & SSR Drivers

total are specified)

Unused conduit openings should be sealed.

2.6.2 AC POWER WIRING CONNECTIONS WARNING: Avoid electrical shock. AC power wiring must not be connected at the source distribution

panel until all wiring connections are completed.

FIGURE 2-5

AC Instrument Power Input Connect the 115 VAC hot and neutral to terminals 1 and 2 respectively of TB1. See Figure 2-4 (page 14) for Terminal Block locations on the instrument. Connect the 230 VAC one leg to each terminal, be sure to check the position of the Voltage Selector switch provided with 230 VAC instruments. The switch position must match the voltage input to the instrument.

PAGE 15

Connect the AC ground at the green ground screw on the left side of the inside of the case

FIGURE 2-6

Thermocouple Inputs

For Relative Humidity calculations both sensor inputs must be the same kind. For best results, a matched pair of sensors should be used.

Wet Bulb input. Connect the positive leg of the thermocouple to terminal 1, and the negative to terminal 2. Be sure that the input conditioning jumpers are properly positioned for a thermocouple input. See Appendix A-1 (page 68).

Use TB4 for the Dry Bulb input, and TB5 for the

Line 1

TB1

Line 2

TB4 and TB5

+ 1

Grounded or Ungrounded Thermocouples may be used

PAGE 16

FIGURE 2-7

RTD Inputs

For Relative Humidity calculations both sensor inputs must be the same kind. For best results, a matched pair of sensors should be used.

for the Wet Bulb input. Connections are shown for 3 wire and 2 wire RTD inputs. If a three wire device is used, install the common legs to terminals 2 and 3. If a two wire device is used, install a jumper between terminals 2 and 3. Be sure that the input conditioning jumpers are properly positioned for an RTD input. See Appendix A-1 (page 68).

Use TB4 for the Dry Bulb input, and TB5

TB4 and TB5

345

TB4 and TB5

345

Jumper

SUPPLIED BY CUSTOMER

3 Wire RTD 2 Wire RTD

FIGURE 2-8

Volt and milliamp Input Make the volt and milliamp connections as shown below. Use TB4 for the Dry Bulb input, and TB5 for the Wet Bulb input. Terminal 1 is positive and terminal 2 is negative. The milliamp input requires the installation of an appropriate shunt resistor (ordered separately) between terminals 1 and 2. Be sure that input conditioning jumpers are in the correct positions for the input being connected. See Appendix A-1 (Page 68).

NOTE: Fault detection

is not functional for 0-5V or 0-20mA inputs

TB4 and TB5

12345

SHIELDED TWISTED PAIR

+ -

SOURCE

MAY BE GROUNDED OR UNGROUNDED

FIGURE 2-9

Remote Profile Run/Hold If the Remote Run/Hold option has been specified, make the connections as shown. The Remote Run/Hold option provides the capability of halting and restarting a running profile from the operation of a remote contact closure. The operation of the Remote Run/Hold is determined by the Program mode parameter selected. The closure of a remote dry contact will cause the profile to hold. Re-opening the contact will cause the profile to continue to run from the point at which it was halted. If both pens on a dual pen instrument are selected to profile control the Remote Run/Hold will affect the operation of both pens.

TB4

12345

SHIELDED TWISTED PAIR

REMOTE DRY CONTACT

PAGE 17

FIGURE 2-10

Remote Setpoint Input VDC, mADC (Optional for the second pen of dual pen instruments) If Remote Setpoint option has been specified, make connections as shown. The remote setpoint input may be selected as either 0 to 5 VDC or 1 to 5 VDC input in the Program mode section. Make sure the configuration properly matches the input used. Connect the positive lead to terminal 4, and the negative lead to terminal 3 (Terminal 3 is the ground, terminal 4 is the input, terminal 5 is 5 VDC.) If a 4 to 20 mADC remote setpoint is to be used, the instrument remote setpoint input should be configured for 1 to 5VDC in the Program mode, and a 250 ohm resistor should be installed across terminals 4 and 3.

TB4 or TB5

12345

SHIELDED TWISTED PAIR

+ -

SOURCE

TB4 or TB5

12345

SHIELDED MULTI-CONDUCTOR CABLE

150 OHM TO 10K OHM POTENTIOMETER

PAGE 18

FIGURE 2-11

Digital Communications Options Connections are made as shown using TB2. Refer to the Protocol Manual, Form #2878 for more details regarding the connections and how to use this option. This document is provided only when this option has been specified. If the communications network continues on to other instruments, connect the cable shields together, but not to the instrument. A terminating resistor should be installed at the terminals of the last unit in the communications loop. If the communications network ends at the instrument, the shield is not connected.

TB2

Serial A

Serial B

TOWARD THE

COMPUTER

NETWORK CONTINUATION (IF APPLICABLE)

2.6.4 OUTPUT CONNECTIONS

Relay output(s), if provided in the instrument, may be assigned to control or alarm output functions for Pen 1 and/or Pen 2 (if present). Current outputs may be assigned to control and process value retransmission output for Pen 1 and/or Pen 2 (if present). The assignment of the output function (s) are/is accomplished in the Program mode. SPST relay and/or SSR driver output(s) is/are designated as Relay A through Relay H. SPST relays begin with Relay A designation, then B, C, etc. SSR drivers begin with Relay H designation then G, F, etc. except when 4 SSR drivers are required in conjunction with SPDT relays, then designation E & F are not available. SSR driver designation becomes G, H, D, and C. SPDT relay output(s) are designated as Relay A and Relay B only.

FIGURE 2-12A

SPST Relay Output Connections are made to relays A through F as shown. Terminal connections are made using TB6 (Relay/SSR Driver A, B), TB7 (Relay/SSR Driver C, D) and TB8 (Relay/SSR Driver E, F).

HOT NEU

POWER

LOAD

1234

N.O.

C N.O. C

TB6 Relay A & B, Relay A Terminals 1 & 2 TB7 Relay C & D, Relay C Terminals 1 & 2 TB8 Relay E & F, Relay D Terminals 1 & 2

5 AMPERES MAXIMUM AT 115 VAC

FIGURE 2-12B

SPDT Relay Output

PAGE 19

HOT NEU

POWER

LOAD

5 AMPERES

123

N.O.

C N.C.

TB6 Relay A TB7 Relay B

FIGURE 2-13

SSR Driver Output Connections are made to relays H through A as shown. Terminal connections are made using TB9, TB8, etc. depending on the number of SSR Driver outputs specified.

1234

MAXIMUM AT 115 VAC

+ -

SSR

TB6 THRU TB9

TB9 SSRD G, H - all cases TB8 SSRD E, F - no SPDT relays TB8 SSRD C,D - SPDT relay/s E and F not available

FIGURE 2-14

Current Output Connections are made to current outputs A thruough D as shown. Each current output is programmable as either 4 to 20 mADC or 0 to 20 mADC. Each output must be assigned to the desired function in the Program mode. Terminal connections are made using TB10 through TB13 for current output A through D respectively. Connect positive lead (+) to terminal 1 and the negative lead (-) to terminal 2. Each current output will operate up to a 650 ohms maximum load.

SHIELDED TWISTED PAIR

LOAD

650 OHMS MAXIMUM

PAGE 20

FIGURE 2-15

Transmitter Power Supply Input If the isolated 24 VDC regulated transmitter power supply has been specified, the connections should be made as shown. Connections are made using TB3, terminal 1 is positive and terminal 2 is negative. The power supply is capable of providing the power needed for up to 2 transducers.

TB3

+ 12

TB4 or TB5

12345

TB3 +

TB4

12345

SHIELDED

TWISTED

PAIRS

TWO WIRE

TRANSMITTERS

TWO WIRE

TRANSMITTERS

TWO WIRE

TRANSMITTERS

FIGURE 2-16

Position Proportioning Control Output Position Proportioning control requires that two relays (or SSR Drivers) and the Position Proportioning Auxiliary input be specified. On a dual pen instrument either pen may be configured with Position Proportioning control provided the outputs and auxiliary inputs have been properly specified.

OPEN

Modulating Motor

TB6, TB7 or TB8

3 2

TB4 or TB5

5 4 3

Configuration 3.1

After completing installation and wiring of the instrument the configuration (set up) procedures must be performed to prepare the instrument for operation on the intended application. The procedures include selecting specific parameters, entering data and possible jumper positioning. Once properly configured the instrument will retain the user selections in memory so this procedure need not be repeated unless required by changes in the application.

Parameter selections and data entry are made via the front keypad. To ease configuration and operation, user entered data has been divided up into several sections referred to as modes. Each mode contains a different type of data or may be used for specific operating functions. For two pen instruments, some modes are common to both pens. These modes are as follows:

PAGE 21

Control (CtrL)

Test (tESt)

Calibrate (CAL)

Program (Prog)

Tune (tunE)

Profile Continue (PCon)

Profile Enter (PEnt)

Profile No. (P1...P8)

Off (oFF)

Mode Display Code Function Description

Off oFF Operation Outputs and Alarms

Control CtrL Control Outputs and Alarms (Operate) (oPEr) (Operation) are Active

Test tESt Service Tests Instrument

Calibration CAL Service Calibrates, Resets

Program Prog Configuration Configure Operating

Tune tunE Configuration & Enter Tune and (Alarm Set) (ASEt) Operation Alarm Settings

Profile Entry PEnt Configuration Enter the Profile

are Off. Chart may stop rotating (selectable)

(Recorder)

Operation

Instrument

Parameters

Operation

(Recorder)

program(s)

Profile Continue PCon Operation Provides the means

to restart a profile anywhere within the program

Setpoint Change ESPC Operation Prohibits setpoint

change from the keypad

Enable Enab Configuration Mode security

system, can lock out everything except off and operate (See Appendix A-1, page 68, for hardware lockout information)

Associated with each mode is a series of unique displays that are accessed via the front keypad.

PAGE 22

Prior to first time operation of the instrument, the configuration procedures for the Program and Tune modes must be performed as applicable. Calibration and Test modes are not used as part of the instrument configuration or operation. These are used for service and maintenance functions and are discussed in Section 5.6 (page 59) of this manual.

Shipped Configuration/ Jumper Positioning 3.2

Each instrument is factory shipped ready to accept a RTD input on TB 4 and TB 5. All parameters in each mode are set to default values. These defaults are shown in tabular form after the description for each mode. Instrument AC power input is as specified in the instrument model number and is shown on the ratings label. The 230 VAC option includes a switch in the instrument for selecting either 230 VAC or115 VAC input power. If this feature is provided, verify AC input and switch position before applying power to the instrument.

3.2.1 JUMPER POSITIONING

Jumpers are used to condition the sensor inputs and to provide a security lockout feature. All jumpers are located on the instrument Processor board. The instrument board layout and jumper locations and functions are shown in Appendix A-1 (Page 68). Check the jumper positions in the instrument and verify that they are in the proper position for the intended application.

The sensor input jumpers JU4, JU5, JU6 and JU7 condition the sensor input signals and must be used in conjunction with input type selections made in the Program mode (page 30).

Operation Summary 3.3

3.3.1 MODE SELECTION

If the instrument is either in the Off mode or the Control mode repeated pressing and releasing of the SCROLL key will cause the instrument to display the code corresponding to each mode that is enabled. To enter a mode, while the code is displayed, press the DOWN key. If a mode does not appear, refer to the Enable mode section for information on how to determine that the mode is on.

Entry into any mode except the Control, Tune, Manual and Enable modes, will cause the output(s) to turn off and any process re-transmission value output(s) to be 0 %.

Entry into Off mode will cause the process re-transmission output to remain active.

Start Up Procedures 3.4

All configuration parameters are listed in Tables 3-1 through 3-5. For a single pen instrument, parameters for each mode are displayed in the upper right

display. If the instrument being configured is a two pen model, a sequence of applicable parameters will be displayed in the Pen 2 display after the Pen 1 parameters have been reviewed and configured. After the Pen 2 parameters have been completed, parameters common to both pens will be configured and displayed in the Pen 1 display.

The instrument is provided with a time out feature. If the instrument is in any mode and no keypad activity takes place for 30 seconds, the instrument will time out and exit the mode automatically. The display will become the code for the respective mode. If a mode code is displayed for 5 seconds with no keypad activity, then the time out will cause the instrument to proceed to either the Control or Off mode, depending upon which operational state was in use before entry into the mode.

3.4.1 POWER UP PROCEDURE

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A. Verify that all electrical connections have been properly made before applying

B. For instruments with software revision R2.99 and below

C For instruments with software revision r3.00 and above

power to the instrument.

Upon power up, 77XX will be displayed (X representing digits), then XXXX, then

XXXX, identifying the twelve digit model number as defined in the order matrix.

Next, the EPROM part number will be indicated P-XX. After the EPROM part

number, the software revision level will be displayed in the format rX.XX then

tSt1, tSt2, and tSt3 will be displayed while Test 1 through 3 are executed

automatically. Upon successful completion of these test, oPEr or oFF will be

displayed for about 3 seconds. The mode displayed will be the mode the

instrument was in when the power was turned off. During this time, the operator

may select another mode (Alarm Set, Enable) or non-operational mode (Test,

Program, Cal).

Upon power up, a brief flash on all displays (upper and, if equipped, lower) will

occur to show the instrument is "alive". Then 77XX will be displayed (X representing

digits) then XXXX, then XXXX, identifying the twelve digit model number as defined

in the order matrix. Next, the EPROM part number will be indicated P-XX. After the

EPROM part number, the software revision level will be displayed in the format

rX.XX followed by P.dn (if Pen Action on Power Up, PAPU, in Program Mode is set

to 0, pens go to "home" position at power up). During this display, the decimal point

after the "P" will blink to show the mode is active. Upon successful completion of

this routine, oPEr or oFF will be displayed for about 3 seconds. The mode displayed

will be mode that the instrument was in when the power was turned off. During this

time the operator may select another mode (Alarm Set, Enable) or non-operational

mode (Test, Program, Cal). D. If any error messages are displayed, refer to Section 5.6 (page 60) for a

definition of the error message and the required action.

Front Panel Operation 3.5

3.5.1 DIGITAL DISPLAY AND STATUS LED’s

The digital display provided for each pen has 4 digits and a decimal point. Each digit has seven segments and is capable of producing numeric characters from 0-9 and certain alpha characters. The digital display is used to provide indication of process variable as well as displaying codes used for configuration and operation of the instrument. The display includes the following Status Indicator LED’s;

Label Color Function

MAN Amber Lights when the Manual (StbY) mode is on. OUT1 Red Lights when Output 1 is on or mADC output selected. OUT 2 Amber Lights when Output 2 is on or mADC output selected. ALRM Red Lights when either Alarm is on. C Red Lights to indicate that the process value is in degrees C

(Celsius).

(ALRM 1 Recorder) (ALRM 2 Recorder)

PAGE 24

F Red Lights to indicate that the process value is in degrees F

(Fahrenheit).

U Red Lights to indicate that the process value is in terms of

Relative Humidity or Engineering units.

SP Green Indicates that the value displayed is the setpoint.

- Red Lights to indicate a negative displayed value. RAMP Red Lights to indicate that a profile is running and is ramping

the setpoint.

SOAK Red Lights to indicate that a profile is running and is at a

constant setpoint.

SEG1-6 Red Lights to indicate that a profile is running and is in the

segment that is lit.

*Refer to Figure 1-2 (page 7) for the display features illustration.

3.5.2 KEYPAD CONTROLS

The keys on the keypad functions include:

SCROLL: Used to : 1. Display the enabled modes.

UP: Used to: 1. Exit a mode.

DOWN:

Used to: 1. Enter a mode

2. While in a mode, used to sequence the parameter codes and values.

3. Exit some Test and Calibration functions

4. Work in conjunction with other keys: a. With the UP key to display proportional output % b. With the DOWN Key;

1) On power up to alter model #

2) Enter Cal/Test functions

2.Turn a mode On in the Enable mode

3.Increase a parameter numerical value

4. View the setpoint for Pen 1 (Press and release)

5. Increase the setpoint value (Press and hold)

6. Work in conjunction with other keys: a. With the SCROLL key to display proportional output % b. With the DOWN key;

1) On power up to reset the instrument

2) Lamp test (Press and release)

3) Enter the Enable mode (Press and hold)

2. Turn a mode Off in the Enable mode

3. Decrease a parameter numerical value

4. View the setpoint for Pen 2 (if provided)

5. Decrease the setpoint value (Press and hold)

6. Step display through parameter codes in a mode

7. Start a profile

8. Work in conjunction with other keys: a. With the SCROLL key;

1) On power up to alter the model number displayed

2) Enter Cal/Test functions

b. With the UP key;

1) On power up resets the instrument

2) Lamp test (Press and release)

3) Enter the Enable mode (Press and hold)

AUTO/MAN: Used to: 1. In the Control mode to enter the Manual mode if proportional The upper key is for output(s) selected Pen 1, the lower key 2. In the Manual mode to enter the Control mode if proportional is for Pen 2 (if provided) output(s) selected

RUN/HOLD: Used to: 1. To start a profile.

2. To halt a running profile

FIGURE 3-1

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Pen 1

AUTO/MAN

Key

RUN/HOLD Key

Pen 2

AUTO/MAN

Key

Lamp Test

All display and status LED’s can be illuminated simultaneously by depressing the UP and DOWN keys at the same time. Any defective LED’s will not light.

*CHANGE CHART (also see Changing Charts, Section 4.2)

If the UP and DOWN keys are held depressed for more than 2 seconds but less than 4 seconds, the display will show Cchg momentarily. The pen(s) will move to and remain at a point above the top graduation on the chart and the chart will stop rotation to allow the chart to be changed. The pens will remain fully upscale with the chart OFF; otherwise, the unit will continue to operate normally in the current mode. To restore pen(s) position and chart rotation, press the UP and DOWN keys for more than 2 seconds but less than 4 seconds.

AUTO

MAN

RUN

HOLD

AUTO

MAN

SCROLL Key

UP Key

DOWN Key

*PEN RESYNCHRONIZATION

To resynchronize the pen(s), depress the UP and DOWN keys for 4 seconds, the display will show P dn momentarily, the pen(s) are driven to the "Pen Home" position below the bottom graduation on the chart while the unit resynchronizes their position. After about 14 seconds, the pen(s) will return to their correct position. All other functions of the unit's present mode continue to operate normally.

PAGE 26

PROGRAM MODE FLOW CHART

Prog

Pen 1 Only

iSi1

iCi1

iSi2

iCi2

PEnS

rHC

out2

o2uL

o2LL

AL1

Pen 1 & Pen 2

AL2

diSP

ON OFF

Key

Actual Display

On/Off Display Use arrow keys to turn on or off

Scroll Key

Numeric Display Use arrow keys to change value

Up Arrow Key

Down Arrow

out1

o1uL

o1LL

dPoS

Euu

EuL

PAGE 27

HyCo

HyAo

rSP

rSPu

rSPL

SPuL

dFF

PFF

Pout

Pou

PoL

Cru

SPLL

AtFr

Prnd

CrL

P1EC

P2EC

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