Donaldson Torit STi ODC-TC User manual

This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.
13IAF023 (07/14)
Revision 3
English
Master Language
STi Pulse Timer Range
Installation and Operation Manual
Installation, Operation, and Service Information

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Donaldson Company, Inc.
Regularly check that all equipment is properly selected, sized and operated for the intended use. Discuss any
questions relating to the application, use or maintenance of any Donaldson equipment with your Account Manager.
The delineation of hazardous areas within a work area or facility is beyond the responsibility of Donaldson.
Consequently, the suitability of electrical equipment provided by Donaldson to be installed within these hazardous
areas is also not the responsibility of Donaldson.
Electrical equipment supplied by Donaldson may or may not be suitable for use in a hazardous area. Certain equipment
is suitable for use in certain types of hazardous areas and those equipment are provided with certificates of suitability.
In order to protect your interest, Donaldson strongly recommends that you seek professional advice from qualified
persons regarding the delineation of hazardous areas and the suitability of Donaldson’s equipment within these areas.
The STi timer in its standard form as described in this manual is NOT suitable for hazardous areas. Please consult your
Account Manager for special requirements.
The timer must be installed in compliance with Australian and New Zealand standards. Improper installation may
contribute to conditions in the work area or facility that could result in severe personal injury as well as product and/or
property damage.
PLEASE READ THIS DOCUMENT CAREFULLY PRIOR TO INSTALLATION AND/OR START UP. IT CONTAINS SPECIFIC
PRECAUTIONARY STATEMENTS RELATIVE TO WORKER AND EQUIPMENT SAFETY.
THIS DOCUMENT SHOULD BE READ IN CONJUNCTION WITH THE INSTALLATION, OPERATION AND MAINTENANCE
MANUAL OF THE DUST COLLECTOR UNIT WHOSE REVERSE JET PULSE CLEANING SYSTEM IT IS TO CONTROL.
WARNING, used with the safety alert symbol, indicates a hazardous
situation which, if not avoided, could result in personal injury and
extensive damage.
NOTICE is used to address practices not related to personal injury that
may result in damage to equipment.

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STi Timer Range
Contents
1 Timer Description ........................................................................................................................................................................ 4
2 Installation Guide ....................................................................................................................................................................... 8
2.1 Mechanical Installation.................................................................................................................................................. 8
2.2 Electrical Installation .................................................................................................................................................... 11
2.2.1 Connections on the master card........................................................................................................................... 11
2.2.2 Connections on the extension card(s) ................................................................................................................. 17
2.3 Pneumatic Installation.................................................................................................................................................. 24
2.3.1 Check connection of solenoid valves to diaphragm valves ............................................................................. 24
2.3.2 Set up on demand cleaning (not required in basic version) ............................................................................ 24
2.3.3 Set up tube cleaner (only required for ODC-TC version) .................................................................................. 24
3 Operation and Site Reprogramming ...................................................................................................................................... 26
4 Programming the Timer............................................................................................................................................................ 30
4.1 Timer Initialisation ......................................................................................................................................................... 30
4.2 Timer Run Screens ........................................................................................................................................................ 31
4.3 Temporarily Stop Filter Media Cleaning .................................................................................................................... 33
4.4 Review Settings ............................................................................................................................................................. 34
4.5 View Service Information............................................................................................................................................. 35
4.6 Request Product Support............................................................................................................................................. 35
4.7 Access Timer Settings.................................................................................................................................................. 36
4.8 Configure Pulse Timing................................................................................................................................................. 36
4.9 Input Handling & Alarms Set Up (not shown in basic version).............................................................................. 39
4.10 ODC Configuration (not shown in basic version) ..................................................................................................... 40
4.11 Tube Cleaner Set Up (only shown in ODC-TC version)............................................................................................ 41
4.12 Manually Test Valve Operation ................................................................................................................................... 42
4.13 View Operational Records ........................................................................................................................................... 43
5 Alarms & Warning Messages................................................................................................................................................. 43
6 General Troubleshooting.......................................................................................................................................................... 46
Appendix 1: Timer Specification Form......................................................................................................................................... 48
Appendix 2: Generalised Wiring Diagram .................................................................................................................................. 49
Appendix 3: Glossary Of Terms..................................................................................................................................................... 50

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Donaldson Company, Inc.
1. TIMER DESCRIPTION
The Solid state pulse Timer intelligent (STi) is the newest
addition to the Donaldson range of timers. This timer
gives a versatile range of options for controlling the
reverse pulse cleaning jets in continuous duty dust
collectors.
The STi timer consists of a master card which is able
to pulse up to 10 solenoid valves. If the timer needs to
control more than 10 valves, the master card needs to
be connected to one or more extension cards using
the supplied CAT5 cable. The master card talks to the
extension cards through differential signalling using the
RS 485 protocol. The addition of each extension card
increases the maximum number of valves that can be
controlled by 10.
At present, three versions are available within the
Donaldson STi timer range:
a. STi timer basic (STi) version. This version fulfills the
basic functions of pulsing the diaphragm valves on
a dust collector and comes with automatic fault
detection features.
b. STi timer with on demand cleaning (STi-ODC) version.
This version monitors the pressure difference
between the clean and dirty air plenums and uses
this information to determine if the filters are clean
or dirty. When the differential pressure crosses the
preset levels, the timer activates cleaning of the filter
media.
c. STi timer with on demand cleaning and tube cleaner
(STi-ODC-TC) version. This version augments on
demand cleaning with its tube cleaner. The tube
cleaner passes a jet of compressed air through
the hose connecting it to the dirty air plenum side
of the collector to dislodge any product that may
accumulate in the tube blocking it. This ensures
reliable measurement of differential pressure
between the dirty and clean air sides of the collector.
The timer is available in two standard configurations. In
the DC configuration these timers drive 24VDC valves
where the input to the timer can be between 110-240
VAC or 24VDC. The timers are also available in a legacy
AC configuration wherein the timers can drive either
110 VAC or 240 VAC solenoids supplied in older dust
collectors, where the input and the output from the timer
are the same (e.g. if the timer is intended to drive 240VAC
solenoid valves then the power input to the timer should
be 240VAC). The timer can be reconfigured to suit special
requirements – please contact your Account Manager to
discuss your specific requirements.
The standard program design of these timers is such
that when only one valve is to be pulsed at any instance
(sequential mode), up to 60 valves can be controlled
by the timer. When more than one valve is to be pulsed
at the same time (parallel mode) there can be up to 4
groups each containing 60 valves. The STi timer can be
custom programmed to allow for a higher number of
valves to be controlled – please contact your Account
Manager to discuss your specific requirements.

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STi Timer Range
STi basic version STi ODC version STi ODC-TC version
Basic Functional Description The basic version
automatically pulses the
valves at regular intervals
as long as it is powered up
and has not been manually
halted either manually or by
an interrupt signal.
The ODC version pulses the
valves when it detects that
the filters have become dirty
with the option of faster
pulsing when it detects the
filters are significantly dirty.
This version operates
similar to an ODC version
and has additional
hardware for cleaning its
measurement tubes so that
it can accurately detect
when the filters become
dirty.
STANDARD ENCLOSURE PROPERTIES
Polycarbonate UV rated enclosure Y Y Y
Enclosure IP65 rated Y Y Y
BASIC FEATURES
Alphanumeric digital display Y Y Y
Maximum number of valves that can
be connected to the master card
10 10 10
Maximum number of valves that
can be independently controlled in
sequential mode
60 valves 60 valves 60 valves
Maximum number of valves that
can be independently controlled in
parallel mode
Maximum 4 blocks, each
with up to 60 valves
Maximum 4 blocks, each
with up to 60 valves
Maximum 4 blocks, each
with up to 60 valves
Automatic solenoid valve electrical
fault detection facility
Y Y Y
Reporting facility available to identify
if the system is pulsing or is halted
(through General Warnings relay
alarm)
Y Y Y
Manual (continuous) or automatic
(on demand) cleaning facility
available
Continuous Only Both Continuous and On
Demand
Both Continuous and On
Demand
Tube cleaning facility N N Y
Standard pulsing sequence available Y Y Y
Arbitrary pulsing sequence available Y Y Y
Possible range for pulse duration
range
50-990 ms 50-990 ms 50-990 ms
Possible range for interval between
pulses during NORMAL pulsing
1-999 s 1-999 s 1-999 s
Possible range for interval between
pulses during FAST pulsing
N/A 1-99s 1-99s
Possible range for number of cycles
for offline cleaning
0-99 cycles 0-99 cycles 0-99 cycles
Pressure scale in kPa, in H2O and
mm H2O available
N/A Y Y
Forced pulsing facility when cleaning
on demand
N Y Y
Counter for recording total and
session operating hours
Y Y Y

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Donaldson Company, Inc.
STi basic version STi ODC version STi ODC-TC version
Counter for recording total as well
as number of pulses generated in a
session
Y Y Y
Code protection for settings update Y Y Y
INPUTS AVAILABLE
Power supply requirements 24VDC or 110-240VAC 24VDC or 110-240VAC 24VDC or 110-240VAC
Sensor input monitoring facility
available (interrupts and sensor
inputs are on the same terminal)
N Y Y
No. of sensor inputs that can be
monitored
None 2 (either analogueue or
digital)
2 (either analogue or
digital)
Remote interrupt facility available
(interrupts and sensor inputs are on
the same terminal)
Y Y Y
No. of interrupt switches available 2 2 2
OUTPUTS POSSIBLE
Communication to Extension Cards
via RS 485 bus through CAT5 cable
with twisted pair
Y Y Y
Constant 24VDC output available via
RS 485 bus
Y Y Y
Relay alarm for system health,
triggered off when the timer
identifies that the dust collection
system is no longer able to operate
efficiently
Y Y Y
Relay alarm for warnings, triggered
when the timer identifies that there
might be something wrong with the
dust collection system
Y Y Y
4-20mA current loop for remote
monitoring of differential pressure
N/A Y Y
OPTIONAL EXTRAS (requires additional hardware)
Broken bag detection feature N Y Y
Compressed air header pressure
measurement
N Y Y

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STi Timer Range
Figure 1: STi master cards (a) basic version and (b) ODC / ODC-TC version. Note the legacy AC version has
different circuitry.
a) STi basic version master cards
b) STi ODC and ODC-TC versions master cards

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Donaldson Company, Inc.
By default, the order in which the timer pulses the valves
is consecutive (standard pulse sequence) however it is
possible to define an arbitrary pulse sequence during
commissioning. Donaldson’s IAF Engineering Department
can advise if that is required after reviewing all
available facts.
Unless cards are specifically ordered as replacement
parts, the timers are generally supplied in a lockable UV
stabilised, IP65 rated polycarbonate enclosure, which
may or may not have valves fitted directly on to it. Other
enclosures (mild steel/fibre glass/stainless steel) may be
supplied if specifically requested.
2. INSTALLATION GUIDE
2.1 MECHANICAL INSTALLATION
Each STi timer enclosure (whether housing a master
or extension cards) will need to be bolted to either a
mounting bracket for mounting to, or be directly bolted
onto, a suitable vibration free surface on or near the
dust collector.
If the STi timer is supplied with a dust collector, it will
be supplied with the necessary mounting brackets.
Depending on the dust collector unit, the timer may
already be bolted to the dust collector using these
brackets, or the brackets may be supplied loose for
installation by others as close as possible to the
collector on site.
NOTE
Timers ordered as spare parts are not supplied with
any mounting brackets. If you need replacement
bracket, please advise your Account Manager when
you place your order for the timer.
Figure 3 shows the position of the STi timer master
enclosure, marked as (A) and the extension enclosure
as relevant, marked as (B) for different dust collector
models. The figure also shows the location of the
pressure taps for the connection of the clean air and
dirty air sides marked (C) and (D) respectively.
a) Dalamatic Unit Series DU
Figure 3: Location of STi timer master and extension card
enclosure(s) on different Donaldson dust collectors
Figure 2: STi timer enclosure with bracket (bracket
shown is for use with Dalamatic DLMC, DLMV
and DU units)

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STi Timer Range
b) Dalamatic Cased Unit Series DLMC
c) Dalamatic Insertable Venting Unit Series DLMV
d) Siloair Unit Series VS
e) Downflo Oval Unit Series DFO
f) Powercore Series CPV
Figure 3: Location of STi timer master and extension card
enclosure(s) on different Donaldson dust collectors

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Donaldson Company, Inc.
Figure 3: Location of STi timer master and extension card
enclosure(s) on different Donaldson dust collectors
Depending on the dust collector unit that the timer
has been configured for, it may be supplied with or
without solenoid valves fitted on the enclosure. If
the timer enclosure if fitted with solenoid valves, it
must not be mounted more than 1.5m away from the
diaphragm valves on the collector.
NOTE
On the DFO series and the Powercore CPC series
units, the master enclosure is normally shipped
loose. The master and extension cards are housed in
a single enclosure on the Powercore VH series unit.
These enclosures should be installed away from the
dust collector by others.
i) Powercore Series VHg) Powercore Series CPC
h) Powercore Series TG