Donaldson Torit checker sdf User manual

OFF

This manual contains specific precautionary statements relative to worker

safety. Read this manual thoroughly and comply as directed. It is impossible to

list all of the potential hazards of this equipment. Persons installing or operating

this equipment should read this manual and be instructed to conduct themselves

in a safe manner. All electrical installation and maintenance shall be performed

by a qualified electrician. All local electrical codes must be followed.

TORIT®INSTALLATIONAND

OPERATIONMANUAL

IMPORTANT

PANEL

123

1234

CLEANINGFAILURE

FILTERRUPTURE

TEMPERATURE

SERVICEINTERVAL

MAINTENANCEREQUIRED

STOP

CLEAN

START

CLEAN

SERVICE

INTERVAL

CONSTANT

CLEAN

1234

12345

AIRFLOW

SETPOINTINDICATOR

BLOWEROVERCURRENT

FILTERPLUGGED

SETPOINT ADJUSTMENT

DOWN

TIME

CLEAN

SERVICE

INTERVAL

LIGHT

RESET

FILTERPRESSUREDROP

1234

123

1234

TORIT CHECKER™BOARD—SDF VERSION

12345

BLOWER

IncludesInstallation,Operation,andServiceInstructions

IOM-71094-00

Revision A

Statements indicate precautions

necessary to avoid potential

equipment failure.

NOTE

Statements indicate potential

safety hazards

CAUTION

• All electrical work is to be done by a quali-

fied electrician according to the national and

local electric codes that apply.

• All electrical power must be shut off during

installationof theChecker™board.

APPLICATIONOFELECTRICALEQUIPMENT:

• Do not initiate any circuits before all

connectionshavebeenmade.

TORIT PRODUCTS is the leading designer and

manufacturer of dust collector systems for the

controlof industrialairpollution.TheChecker™board

has been designed to lengthen the life of your

machineandfilters andtoreducetheair consumption

of your cleaning. This will reduce maintenance

requirements and improve product quality.

Notes and Cautions ............................... 2

Data Sheet ............................................ 3

1.0 Introduction ........................................... 6

1.0.1 Specifications ........................................ 6

1.1 Operational Explanation ........................ 6

1.1.1 Functional Detail ..................................6-7

1.2 Standard Features ................................. 7

1.2.1 Airflow ................................................... 7

1.2.2 Filter Pressure Drop .............................. 8

1.2.3 Set Point Indicator ................................. 8

1.2.4 Blower/Panel ......................................... 8

1.2.5 Set Point Adjustments ........................... 9

1.2.6 Unlabeled Window ................................ 10

1.2.7 Maintenance Required .......................10-12

2.0 Installation ............................................ 14

2.1 Inspection—Remote Checker Board.... 14

2.2 Ship Loose Items—

Remote Checker Board ........................ 14

2.3 Tools Required ..................................... 15

2.4 Pre-Installation—

Remote Checker Board ........................ 15

2.5 Electrical Installation ............................ 16

2.5.1 Blower Motor Sensor Setup Table .....16-17

2.5.2 Primary Voltage.................................... 17

2.5.3 ON/OFF ................................................ 17

2.5.4 EXT IN (External Input) #1 ................... 18

2.5.5 SER I/O (Serial Port Input/Output) ....... 18

2.5.6 SER I/O TO COMPUTER..................... 18

2.5.7 TEMP 1 (Temperature) ........................ 18

2.5.8 TEMP 2 ................................................ 18

2.5.9 CUR 1 (Current) ................................... 18

2.5.10 Solenoid and Motor Starter Relays ...... 19

2.5.11 Signal Terminal .................................... 19

2.6 Pneumatic Installation—

Remote Checker Board ........................ 21

3.0 Pre-Start Up Checklist ......................... 21

4.0 Start Up ................................................ 22

4.1 Calibration—Airflow Bar Graph ..........22-23

4.2 Blower Rotation .................................... 23

4.3 Start Clean/Stop Clean Adjustments.... 23

4.4 Service Interval .................................... 23

7.0 Troubleshooting Guide ....................... 24-27

Parts Ordering Information .................. 3,28

Warranty .............................................. 28

Figure 1 – Typical Installation—Remote

Enclosure .................................. 4

Figure 2 – User Interface ............................. 5

Figure 3 – Airflow Display ............................ 7

Figure 4 – Pressure Drop and Set Point

Indicator Display ......................... 8

Figure 5 – Blower/Panel Display .................. 9

Figure 6 – Set Point Adjustments Display ... 9

Figure 7 – Unlabeled Window ..................... 10

Figure 8 – Maintenance Required Display .. 11

Figure 9 – Pneumatic Installation ............... 12

Figure 10 – Thermistor ................................. 13

Figure 11 – Current Sensor Wiring ............... 13

Figure 12 – Setup Table ................................ 16

Figure 13 – Jumper Position ......................... 16

Figure 14 – External Input ........................... 17

Figure 15 – Serial Ports ................................ 18

Figure 16 – Temperature 1 & 2 ..................... 18

Figure 17 – Current Sensor .......................... 19

Figure 18 – Relay 1-24 ................................. 19

Figure 19 – Push Button (Calibration)........... 19

Figure 20 – Wiring Diagram .......................... 20

Figure 21 – Signal ......................................... 21

TABLEOFCONTENTS FIGURES

Customer Name

Address

Ship Date

Model Number

InstallationDate

PARTSORDERINGINFORMATION

When ordering parts, give model number

and serial number, part number, description

and quantity of parts desired.

1-800-365-1331

DATASHEET

PartsandServiceProgram

ForgenuineTORITreplacement filters

and parts, call the TORIT EXPRESS Line:

Figure 1

TypicalInstallation-RemoteEnclosure

Thermistor (Twisted Pair)

CheckerBoard

ControlVoltage

andNeutral

SolenoidWiring

MotorPhase

Leads

ElectricalDisconnect

Power,3Phase

Regulator

CoalescingFilterwith

AutomaticDrain

Shut Off Valve

(Clean)LowPressure Line

(Dirty)HighPressure Line

PANEL

CLEANING FAILURE

FILTER RUPTURE

FILTER PLUGGED

TEMPERATURE

BLOWER OVERCURRENT

SERVICE INTERVAL

MAINTENANCE REQUIRED

Plugged Filters

Turns

Blower On

BLOWER

OFF

Turns

Blower Off

GREEN LIGHT

AMBER LIGHT

12345

RED LIGHT

Figure 2

User Interface

Section 1.2.1

Section 1.2.2

Clean Filters

Low Flow High Flow

Section 1.2.3

Maintenance Schedule

Reminder Reset Button

Section 1.2.6

Section 1.2.4

Section 1.2.7

Section 1.2.5

Adjusts Set Point Upward

Indicates

Blower

Operating

Activates Set Point

Adjustment

Adjusts Set Point

Downward

Will Clean Filter Cartridges

After Blower is Shut Off

Activates Set

Point Adjustment

Activates

Continuous Pulse

Activates Set

Point Adjustment

123

STOP

CLEAN

START

CLEAN

SERVICE

INTERVAL

CONSTANT

CLEAN

123

AIR FLOW

SET POINT INDICATOR

SET POINT ADJUSTMENT

DOWN

TIME

CLEAN

SERVICE

INTERVAL

LIGHT

RESET

FILTER PRESSURE DROP

123

1.0 INTRODUCTION

The Checker™ board diagnostic and control panel

included with the dust collector is a flexible, cost-

effective, and reliable replacement for the solid state

timer, Magnehelic®* and Photohelic®* gages.

1.0.1 Specifications

INPUT VOLTAGE: Low Range – 90 to 130 VAC/

50-60Hz/1 Ø

High Range – 180 to 260 VAC/

50-60Hz/1 Ø

OUTPUT RELAY VOLTAGE AND CONTACT

RATING: The output relays are independent of

the input voltage. The relays can accept power

from any voltage source desired.

VDE – 8 amps, 250 VAC

UL/CSA – 10 amps, 240 VAC; 8 amps, 24 VDC

PULSE WIDTH (ON TIME): 100 milliseconds

(factory set).

PULSE FREQUENCY (OFF TIME): Set at 10

seconds. The off time between pulses can only

be changed by modifying parameters contained in

the microprocessor software (contact the Torit

representative for assistance).

OPERATING TEMPERATURE RANGE: Ambient –

0°F (-18°C) to 140°F (60°C)

RELAYS: There are seven relay positions. Six

can be used to drive solenoids.

1.1 Operational Explanation

The Checker board provides several functions:

• Control of the solenoid valves used for filter

element cleaning.

• Control of the motor starter for the blower

motor.

• Control of the set points used to start and

stop the filter element cleaning function.

• Control of the cleaning mode.

• Continuous monitoring and diagnosis of the

vital functions of the mechanical and

electronic dust collector system components.

• Monitoring of the operating systems.

• Memory storage of the diagnostic readings

for up to one year.

• Ability to accept control, monitoring, and

adjusting of the set points from a remote

computer.

• Visual display of the operating systems.

• Visual warning of abnormal operating

conditions.

• Visual warning of system

mechanical failures.

1.1.1 Functional Detail

A self-cleaning dust collector requires periodic

filter element cleaning. This collector uses pulses of

compressed air to dislodge the collected dust cake,

consequently lowering the pressure drop across the

filter and increasing the airflow.

The Checker board provides cleaning control,

diagnostic review of the operational parameters,

diagnostic review of the physical health of the

system components, and a record of the operational

data and fault conditions for future review.

The operator interface provides control of collector

functions and operational status information.

The design allows for a host computer to remotely

control the collector, accept change to the

operational parameters and check the operational

status. Several collectors may be controlled and

monitored by one external host computer.

*Registered trademarks of Dwyer Instruments Inc.

The Checker board provides the electronic control

of the pulse cleaning function. This control function

includes starting and stopping the cleaning function

at the assigned (adjustable) set points, initiating the

individual pulses in an appropriate sequence,

providing the correct time interval between pulses,

and energizing the solenoid valve for the proper

length of time. The microprocessor also provides the

logic to control the alternate cleaning modes.

The microprocessor compares the sensor

readings and stored values to determine the

operational health of the system. This comparison

indicates ruptured or plugged filters, cleaning

system component malfunction, excessive

temperature and blower motor overload due to

excess air flow or motor failure. The microprocessor

also has an extensive self-diagnostic test program

that provides valuable information to a Torit service

technician when necessary.

A built-in memory stores operational data at preset

intervals and stores all fault indications that occur.

The memory accumulates data for approximately

one year before overwriting and replacing the oldest

information. This data storage provides information

to a service technician, assisting in accurate

problem diagnosis and providing indication of

intermittent system failures.

The Checker board has an RJ-11 connector which

allows access by a host computer. This connection

provides two-way communication, allowing the host

computer to change the settings, start or stop the

collector, and retrieve all current readings. With the

use of host computer software addressing, one

computer could provide remote set point

adjustment, start/stop, and monitoring of numerous

collectors.

The board also accepts a remote on/off push

button or an external control voltage source to

actuate the board.

1.2 Standard Features

The user interface display consists of several

windows, or panels, each either displaying

information or combining set point adjustment and

information.

1.2.1 Airflow (Figure 3)

The airflow window display uses a light bar to

indicate the relative operating position based on the

calibration information placed in the microprocessor

memory at start-up.

The light bar has 10 segments. From left to right,

the first two are RED, the second two are AMBER,

and the remaining six are GREEN. The initial

reading at start-up should be in the GREEN range.

As the filter elements accumulate dust the airflow

indication will move within the light bar range.

The first AMBER light indicates the collector airflow

is at approximately 40-50 percent of full rated flow.

The first RED light indicates a flow of approximately

25-33 percent of the full rated airflow. One light is

illuminated at a time to indicate the relative position

within the range.

Figure 3

Airflow Display

AIR FLOW

123456

12345

1234

12345

1234

RED AMBER GREEN

12345

1000CFM 7000CFM3000CFM 5000CFM

Figure 4

Filter Pressure Drop and Set Point Indicator Display

SET POINT INDICATOR

RED AMBER GREEN

12345

FILTERPRESSUREDROP

123456

12345

NOTE

Useafinepointpermanentmarkerto

writeonstrips.

7.5

6.0

4.5

3.0

1.5

1.2.2 Filter Pressure Drop (Figure 4)

A single window selectively displays the filter

pressure drop (∆P*) or the relative set points.

The pressure drop indicator is a ten segment light

bar. From left to right, the first six lights are GREEN,

the next two are AMBER, and the final two are RED.

This display indicates the amount of static pressure

required to move the airflow from the dirty air

plenum to the clean air plenum through the filter

media and through the tube sheet opening.

The display provides a near linear division of the

available static pressure. The filter pressure drop

indicator lights move from left to right in a bar

display. Each light indicates 3/4" ∆P. One light is

illuminated at a time to indicate the relative position

within the range.

1.2.3 Set Point Indicator (Figure 4)

When using the set point adjustments window, the

bar display switches to a set point display with one

or two lights illuminated. When one light is lit, the set

point is indicated. When two lights are lit, the set

point is bracketed by the two lights (half step).

In Sections 1.2.1, 1.2.2, 1.2.3 and Figures 3 and 4

are descriptions and pictures of two of the windows

located on the cover of the Checker board

enclosure. Packed with the enclosure are two

stickers (1/4" X 4"). These stickers may be used to

indicate airflow in cubic feet per minute. These

measurements can be determined during start-up

and calibration (Section 4.0 Start Up / Calibration

and Adjusting).

Wipe the surface of the control box to remove any

dust. Apply one sticker just below the LEDs on the

Airflow Window.

Write in the appropriate airflow as measured in the

system (see Figure 3). Airflows shown on Figure 3

are shown as an example only.

1.2.4 Blower ON/OFF (Figure 5)

The Blower window has a blower indicator light

(GREEN) and two push buttons. The green ON push

button provides power to the pull-in coil of the blower

motor starter. The light in this panel indicates the

switch closure only. The red OFF button disengages

the power to the motor starter pull-in coil and turns

off the indicator light.

∆

P=Pressure drop across filter elements in inches

water gage.

Figure 5

Blower ON/OFF Display

Figure 6

Set Point Adjustments Display

STOP

CLEAN START

CLEAN

SERVICE

INTERVAL

SET POINT ADJUSTMENTS

BLOWER

OFF

12345

1.2.5 Set Point Adjustments (Figure 6)

This window contains five push buttons and three

indicator lights (AMBER), which provide the means

to adjust the three functions as labeled. The set

points are indicated in the ten light bar graph display

labeled Set Point Indicator. The two arrow keys on

the adjustment display change the set points.

They respond to either single button presses or a

push and hold action. Each single press moves the

indicator position a half step to the right or left as

indicated by the arrow direction. Holding down the

arrow key produces a stepping action. To activate

the arrow keys, first press one of the three

adjustment buttons. As an example, if the START

CLEAN button is pressed, the light above the key

will indicate successful initiation and the Set Point

Indicator bar graph will switch from displaying the

filter pressure drop to show the set point. Use the

arrow keys to change the set point. The lights in the

Set Point Indicator bar graph display will show the

new value. When the adjustment is complete, press

the START CLEAN button again and the indicator

light will go out, showing successful disengagement

of the function. The bar graph will revert to

displaying the filter pressure drop. The Stop Clean

and Service Interval functions operate in the same

manner.

The system logic prevents overlap of the Start

Clean and Stop Clean set points.

If one of the set point functions is left on, the

microprocessor will automatically revert back to

displaying the Filter Pressure Drop after two

minutes.

NOTE

The push buttons must be held down

for approximately one (1) second to

initiate an action. This prevents

accidental activation.

SERVICE

INTERVAL

LIGHT

RESET

DOWN

TIME

CLEAN

Figure 7

Unlabeled Window

CONSTANT

CLEAN

12345

NOTE

AlllightsintheMaintenance

Required windowarered.

1.2.6 Unlabeled Window (Figure 7)

The unlabeled window below the Set Point

Adjustments window provides the operator with the

ability to modify the filter cleaning mode. The normal

cleaning mode provides cleaning only when the

pressure drop is within the range defined by the

Start Clean and Stop Clean set points.

CONSTANT CLEAN—This mode ignores

the set point for Start Clean and Stop Clean

and operates the filter cleaning system

continuously while the blower is running.

Activate this mode by pressing and holding

the Constant Clean button until the indicator

light (GREEN) illuminates. Deactivate the

mode by holding the button down until the

light goes out.

DOWN TIME CLEAN—This mode allows

the filter cleaning to continue after the blower

motor is turned off. After a delay to allow the

blower to stop rotating, the cleaning mode will

then start, sequentially pulse cleaning until

the end of the preset cycle. At the end of the

cleaning cycle, the system shuts down and

remains dormant until the system is

reactivated. This cleaning mode will remain in

effect until turned off, initiating down time

cleaning each time the OFF button shuts the

system down. To activate this mode, press

and hold the DOWN TIME CLEAN button until

the indicator light illuminates (GREEN).

Deactivate the mode by holding the button

down until the light goes out.

SERVICE INTERVAL LIGHT RESET—

This button resets the indicator light located in

the Maintenance Required window.

The system logic requires that the system

be shut down before the reset button will

function. If the system is on, the reset button

will have no effect. To reset the indicator light,

turn the system off, perform the necessary

maintenance (i.e. emptying the hopper/drum

or changing filters), and reset the light before

restarting the blower.

1.2.7 Maintenance Required (Figure 8)

The Maintenance Required window contains a

group of diagnostic functions which, with the

exception of Service Interval, indicate an abnormal

condition exists. The Service Interval indicator will

allow you to schedule routine service as required by

your system. Each of the fault indicator lights, again

with the exception of the Service Interval, is either

reset each time you press the OFF button or reset

automatically when the abnormal condition ends. A

fault light that resets at shut down remains off only if

the fault condition has been corrected. The Service

Interval light has a separate reset button.

PANEL—This indicates that either the

microprocessor-based printed circuit board

has self-diagnosed a fault in its operation or

the power supply voltage applied to the board

is not within acceptable limits.

CLEANING FAILURE—This indicates that

either a solenoid valve, diaphragm valve, or

relay failed to operate resulting in an improper

cleaning pulse. This light will also indicate

either low pressure or complete lack of

compressed air for the cleaning system.

FILTER RUPTURE—This indicates an

unexplained, sudden decrease in pressure

drop across the filter element. Verify this fault

condition by examining the air discharge from

the collector. The fault light may also come on

as a result of either a sudden closure of an

inlet or discharge damper, or other system

changes that cause a rapid decrease in air

flow.

BLOWER OVERCURRENT

SERVICE INTERVAL

MAINTENANCE REQUIRED

TEMPERATURE

FILTERPLUGGED

CLEANING FAILURE

PANEL

FILTER RUPTURE

Figure 8

Maintenance Required Display

FILTER PLUGGED—This indicates that

the pressure drop across the filter element

exceeds the Start Clean set point and that the

cleaning system can not lower the pressure

drop measurement below the upper limit set

point. If the pressure drop does not appear

excessive, check the Start Clean set point for

proper adjustment.

TEMPERATURE—This fault is preset at

the time of shipment. It will signal that the air

stream temperature has exceeded the

maximum temperature recommended for the

filters installed.

SERVICE INTERVAL—The Service

Interval feature can be based on either a timer

function or an external event. If the Set Point

Adjustment for Service Interval responds, the

unit is configured as an elapsed time indicator

and is intended to signal proper service

intervals for the dust collector. The timer can

easily signal any routine service required by

the system design. If the Set Point

Adjustment function does not work, the unit is

configured to respond to an external signal,

such as a high level indicator. For information

on the use of external signals, see Section

2.5.4 EXT IN (External Input #1).

BLOWER OVERCURRENT—This

diagnostic light indicates that the blower

motor is exceeding the recommended

horsepower output, including any service

factor. This will usually indicate that the

system airflow exceeds the rated operating

range. Changing the damper settings or

increasing the external static pressure are

both ways of reducing the airflow. Operating

the collector either prior to installing the

ductwork, with filter elements removed, with

the door(s) removed, or with the hopper open

to the atmosphere will also create excess

flow conditions.

Figure 9

Pneumatic Installation

Checkerboard

Field Installed

Bulkhead Fittings Furnished,

but Field Installed

Figure 11

Current Sensor Wiring

Fan

Motor

CheckerBoard

Figure 10

Thermistor

Field Wired

by Others

Remoted Wired

2.1 Inspection -- Remote Checker Board

2.2 Ship Loose Items—

Remote Checker Board

Unpack the Checker board enclosure. Some items

may have been shipped inside the enclosure.

Open the enclosure by loosening the clamp screws

on the side(s). Remove any packing materials and

properly dispose. Check the components against the

packing list to make sure they have been supplied

by Torit. If you find any components that are

damaged or missing, notify the delivery company

and your local Torit representative.

Items shipped loose with the Checker board may

include:

• (1) Control Box

• (1) Twisted Pair Cable (50 ft. long)

• (2) Clear Tubing (35 ft. long each)

• (1) Safety Filter

• (1) Connector Tube to Tube

• (4) Print #3EA-37129

• (2) Label Stickers 1/4" X 4"

• (1) Installation and Operation Manual

#IOM-71094-00Foradditionalpneumatictubingortwisted

pairwirepleasecontacttheToritExpress

Lineat1-800-365-1331.

NOTE

• When the Checker board is

received, verify that it has not been

damaged in shipment.

• Compare the items received

against the packing slip.

2.0 INSTALLATION (Figure 1)

Mounting Instructions—Remote Checker Board

The enclosure for the Checker board should be

mounted in a location convenient for the operator or

maintenance personnel. Since the display provides

visual warning of problems and operating conditions,

much of its value is lost if the location does not

permit continuous observation. For the longest, most

trouble-free operation, mount the enclosure to a wall

or column with little or no vibration.

(See Figure 9)

In order to get reliable signals to the sensors, the

Checker board's pneumatic sensor lines should not

exceed 250 feet. Lengths in excess of this may

weaken the signals to the point that they are not

readable. Contact the Torit representative for

assistance if the sensor lines must be longer than

250 feet. Thirty-five feet of each of the pneumatic

tubing lines ship with the remote Checker board.

(See Figure 10)

Field wire from the terminal strip in the Checker

board enclosure to the terminal strip in the SDF

electrical located at the top-front of the collector.

Follow the "Remote Wired" or "Remote Partially

Wired" Point-to-Point wiring diagrams shipped

with the collector.

Use properly grounded shielded twisted pair wire

to connect the temperature sensor, preferably in a

metal conduit. The shielded twisted pair wire ships

with the collector.

2.3 Tools Required

• Screw Driver (Wide 5/16 and

Narrow 9/64 Slot Tip)

• Wire Strippers

• Knife

• Crescent Wrench

• Hole Knockout: for 1/2" connector

(.859 to .906) for 3/4" connector

(1.094 to 1.141)

• Wire Cutter

• Needle Nose Pliers

• Channel Lock Pliers

Most electricians will have all of these items as

part of their standard tool kit. Some other items that

will need to be supplied by the electrician are listed

below. The electrician should prepare his

requirements according to local codes.

• Conduit (1/2" and/or 3/4")

• Elbow Connectors

• Straight Connectors

• Wire Ties

• Wire Nuts

• Wire – green/white/black/red

(#16, 14 or 12 AWG)

• Grounding Lugs

CAUTION

NOTE

Readthroughtheentiremanualandstudy

theinstallationprintsthoroughlybefore

attemptingtoinstalltheCheckerboard.

Havethemanualandtheprintsreadily

availableduringinstallation.

Allelectricalworkmustbedonebya

qualifiedelectricianaccordingtolocal

codes.

• Microprocessor controlled devices

with microcomputers and EPROMS

require care to avoid damage due to

static discharge. Use proper ground-

ing procedures to avoid permanent

damage to this device.

• STATIC SENSITIVE ELECTRONIC

ASSEMBLY

CAUTION 2.4 Pre-Installation—

Remote Checker Board

Before installing the Checker board prepare an

area that is clean and away from static discharges

that could damage the components. Choose a

location for the enclosure that will provide easy

access to the interface panel on the outside of the

enclosure and will allow the cover to be opened fully

for service. The distance away from the collector is

limited by the length of tubing and twisted pair cable

that is provided by Torit. If additional tubing or

twisted pair are required, please contact your local

Torit representative (s ee Section 2.0.1 Mounting

Instructions).

2.5 Electrical Installation

Do not attempt to wire any electrical

components while energized.

Electrocution and/or damage to the

components may occur.

CAUTION

BLOWER MOTOR CURRENT SENSOR SETUP TABLE

Figure 12

Setup Table

BlowerMotorFull

LoadAmps

0 - 5 AMP

6 - 10 AMP

11 - 25 AMP

26 - 50 AMP

PrimaryTurns

ThroughSensor

Core(s)

50 AMP Current

Sensor Jumper

Position

JumperPositions

Position A Position B

Position C

Figure 13

Jumper Position

SDF

2.5.1 Blower Motor Current Sensor Setup Table

(See Figures 12 & 13)

The motor amperage located on the motor

nameplate is necessary for positioning the jumpers.

Determine the voltage input to the motor. The

specific voltage will indicate the amp draw on the

nameplate. Refer to the column "Blower Motor Full

Load Amps" in Figure 12. Choose the amperage

that matches the amp rating on the motor. Choose

the letter corresponding to the amperage required

and refer to Figure 13 for the jumper position.

Figure 14

External Input

IN OUT

NEUT

IN OUT

HOT

120

240

Voltage Selection Switch

ON/

OFF

EXT

IN #1

NOTE

The connections to the printed circuit

board are all labeled in the silk screen-

ing on the edge of the board.

NOTE

Position the voltage selection slide

switch to correspond with the

connected voltage.

There is one jumper plug on the main printed

circuit board, located as shown in Figure 13.

The third column refers to the number of times that

the motor leads are passed through the current

sensor coil(s). Please refer to the wiring diagram

supplied with the Checker board.

2.5.2 Primary Voltage

• Switch Position (See Figure 14)

Position the voltage switch to correspond to the

incoming power. When pushed to the left, the

switch is set for 90 to 130 VAC. When pushed to

the right, the switch is set for 180 to 260 VAC.

The user must provide a control transformer

for all other voltages.

• Incoming Voltage (hot) (See Figure 14)

IN/OUT HOT

This is the primary voltage source for the

board. Acceptable voltages are 90 to 130 or 180

to 260 VAC/50-60Hz/1 Ø. The "hot," or phase,

wire connects to the IN terminal. The OUT

terminal provides a convenient point to connect

the "line" voltage to the other output connections

that will operate on the same voltage, such as

solenoid relays.

• Incoming Neutral (See Figure 14)

IN/OUT NEUTRAL

This is the neutral connection for the primary

voltage source. The primary connections should

attach to the IN side, using either the IN or OUT

side to provide "common" connections to the

other outputs (such as the relays).

2.5.3 ON/OFF

(See Figure 14)

This remote ON/OFF circuit provides an

optional switch for applications that need

automatic interlocked starting and stopping, and

for applications with the panel out of physical

reach of the operator. Momentary voltage,

impressed across the ON/OFF terminals,

switches and latches the circuit. If the collector is

ON, it shuts down; if the collector if OFF, it will

start. A second momentary connection causes

the circuit to revert to the original operational

state.

Figure 15

Serial Ports

SER I/O

TO COMPUTER

TEMP

Figure 16

Temperature 1 & 2

2.5.4 EXT IN (External Input) #1

(See Figure 8 & 14)

(See SERVICE INTERVAL Section 1.2.7)

External Input #1 (EXT IN #1) permits the

customer to control the SERVICE INTERVAL fault

light in the MAINTENANCE REQUIRED panel

with an external device, such as a high level

control in a dust storage container, instead of

using the internal timer. One terminal connects to

neutral; the second connects to a voltage source,

either 120 VAC or 24 VDC, connected through a

normally open switch provided by the external

fault indication device. This external output only

functions if the configuration in the

microprocessor was factory-set to read this

input rather than use the internal clock

method of indicating a time-based service

interval.

If the SERVICE INTERVAL light is controlled by

the internal clock timer, EXT IN #1 does not

function.

2.5.5 SER I/O (Serial Port Input/Output)

(See Figure 15)

This RJ-11 socket provides the connection for the

monitoring and control of multiple collectors.

Contacta Torit representative forfurther information.

2.5.6 SER I/O TO COMPUTER (See Figure 15)

This RJ-11 connection (the one closest to the

edge of the printed circuit board) provides the

computer interface, allows remote ON/OFF,

adjusting of set points, and monitoring of

conditions by a host computer. Contact a Torit

representative for information related to

communication requirements.

2.5.7 TEMP 1 (Temperature)

(See Figures 10 & 16)

This is the connection for the thermistor

monitoring the air stream temperature in the clean

air plenum.

2.5.8 TEMP 2 (See Figures 10 & 16)

This is intended for future use.

2.5.9 CUR 1 (Current) (See Figures 11 & 17)

This is a mounting position for a current sensor.

See Figure 11 for proper connections. The current

sensor measures the amp draw of the blower

drive motor, providing airflow information through

the light bar display.

Figure 18

Relays

Figure 19

Push Button (Calibration)

DONALDSON

DIAGNOSTIC

AND CONTROL

MODULE

C 1993

AIRFLOW SET

POINTS

Figure 17

Current Sensor

DONALDSON

DIAGNOSTIC

AND CONTROL

MODULE

C 1993

Push Button

All solenoid relays used must be in

numerical sequence without gaps.

NOTE

Relay #1

Solenoid

Relays

2.5.10 Solenoid and Motor Starter Relays

(See Figure 18 & 20)

Relay #1 is always used to control the pull-in

coil on the motor starter that activates and stops

the system blower. Relays numbered 2 and higher

provide control of the system solenoid valves

used for element cleaning.

The relay outputs can be either 115 Volt AC or

24 Volt DC. The 24 VDC version has a

transformer to supply DC current to the relays.

The 24 VDC version leaves Relay #2 blank to

provide separation of the 115 or 230 VAC motor

starter voltage from the 24 VDC used for the

solenoid valves.

Relays used for solenoid control can operate up

to three solenoids each. Do not connect more

than one solenoid on any air manifold to a

common relay.

2.5.11 Signal Terminal

(See Figure 21)

The Signal terminal provides a means to export

a logic signal to a PLC from a transistor-type

Optocoupler, indicating that one or more of the

Maintenance Required lights are illuminated

(see Figure 8). Any fault light, except the

SERVICE INTERVAL light, causes the

Optocoupler to pass a DC logic signal to a

connected PLC for approximately 0.5 seconds.

Typical circuits to use this signal are illustrated

in Figure 19.

SOL

4SOL

SOL

Checker Board

Relay

Relay Relay Relay Relay Relay Relay Relay

Relay

3 4 5 6 7 8 9 10

24 VOLT POWER SUPPLY

1 2 3 4 5 6 7 8 9

Relay Relay Relay Relay Relay Relay Relay Relay Relay

Relay

SOL

1SOL

SOL

110 VOLT

Figure 20

Wiring Diagram

4 3 2 1 0

24 VOLT

Neutral

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