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Timer Products
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Multitechnology
COMMUNICATING
PROCESSING
ACTUATING
PROCESSING
SENSING
COMMUNICATING
SOLUTIONS
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Multitechnology
COMMUNICATING
ACTUATING
ACTUATING
PROCESSING
SENSING
COMMUNICATING
SOLUTIONS
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Processing
Timers Cam timers
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Timers
Basic technical concepts Products The
competition
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Basic technical concepts
Operating principle
A timer is an automation control component which
is designed to energise an output contact during
a precise timing cycle. It is also known as a
time delay relay, specified-time digital
relay or even an electronic timer. The timing
cycle starts when either power is applied to the
timer or with an initiate switch. The timer
model determines whether an initiate switch is
required. The delay on make time function in a
Chronos 2 will begin as soon as the power is
applied. With the 88 857 series (TOP 948), an
initiate switch is required. Initiate switches
can also be either a maintained or impulse
(momentary) type contact. Because of these
options, there are a large number of potential
timing functions and products.
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Basic technical concepts
Operating principle
There are 4 types of timers are
available DIN-rail mounted products designed
to be mounted to a standard 35 mm DIN-rail
inside a wall-mounted or floor-standing
enclosure. Panel mounted products designed to
be mounted on the front of a control panel for
easy access by the user. Plug-in products
designed to be used with an industry standard 8
or 11 pin socket. The socket can mount on a
DIN-rail or surface in an enclosure. Surface
mounted products designed to be mounted to a
surface inside a enclosure.
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Basic technical concepts
Operating principle
Timing functions require a time reference to
ensure the accuracy of products. This time
reference is known as the time base The time
base is obtained using one of two
technologies - Electromechanical The time base
is obtained from a synchronous micromotor whose
speed depends solely on the frequency of the main
supply on which it is connected. This motor,
associated with a gearbox, controls contacts,
usually microswitches. - Electronic Several
techniques are used analogue or
digital (counting) to obtain the time base. The
output component is usually an electromechanical
relay. Solid-state outputs are also possible.
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Basic technical concepts
Example of a timing function
Timing functions on Crouzet products are
designated by a letter of the alphabet. EXAMPLE
FUNCTION  A Delay on energisation.
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Basic technical concepts
Example timing function
EXAMPLE FUNCTION  C Delay on break (delay
off).
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Catalogue products
Chronos 2 electronic timers Electronic with relay
output 8 or 11 Pin plug-in or 22.5 mm or 17.5 mm
DIN-rail
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Catalogue products
Compact, low cost timers Electronic with solid
state output
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Catalogue products
Panel mounted timers Digital electronics
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Catalogue products
Panel mounted timers Analog electronic
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Catalogue products
Electromechanical timers Panel mount or DIN rail
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Catalogue products
Delay on make timers NAR2, relay output, 2-1/4
snap track RTM, 4 relay outputs, PCB or DIN rail
mount
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Competition Timers
INTERNATIONAL COMPETITORS
1 OMRON
2 C GAVAZZI
COMPETITORS (UNITED STATES)
1 SSAC
2 OMRON
3 IDEC
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The main markets
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Applications
General
Timer controls can be used in addition to a
programmable controller (or PLC) or in places
where a programmable controller is not necessary.
The requirement can be as small as one input and
one output. Two outputs are also available on
some products. Combinations can also be used for
more complex functions.
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Applications
Type of Business
- Printing Presses - Automatic Carwash - Machine
Shop Equipment Manufacturers - Chemical or
Petrochemical Plant Equipment - Swimming Pool
Circulation and Filtering System - Manufacturing
Plants with Automatic or Semi- automatic
Equipment. - Injection Molding Equipment -
Sawmill or Wood Cutting Equipment - Fabrication
and Machine Shops that Specialize in
Automation Equipment - Engineering Firms that
Design Automation Equipment - Equipment
Manufacturers for Electronic and
Semiconductor Equipment - Furnace and Oven
Manufacturers
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Applications
Specific Functions
- Alarm light or horn before automated equipment
starts. - Delay on Break timer to set length of
horn. - Repeat cycle (equal on/off) for
flashing light. - Alarm for operation that does
not occur within a specific time limit. -
Automatic Greaser for bearing system - Cooling
fluid control for cutting tool. - Conveyor
operation - Automatic door opening system. -
Timing control for injection molding machine -
Control for electrically operated valves.
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Cam timers
Basic technical concepts Products The
competition
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Basic technical concepts
Operating principle
A CAM TIMER is an automation control component
designed to actuate a series of contacts in a
predetermined order during a cycle, according to
a cyclical program. The cycle can be
single-shot, repetitive, or step-by-step. Often
underrated, cam timers can be used to simplify
automation systems considerably and eliminate the
need for many components.
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Basic technical concepts
Operating principle
Cam timers consist of - A drive device
synchronous geared motor - Data carriers
standard, adjustable (programmable), or precut
striker cams
Standard Programmable
Custom
- Output switching components microswitch
(electrical) or microvalve (pneumatic)
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Adapted products
There are numerous possibilities when creating
cam timers. - Switching possible with 1 to 40
circuits - Possibility of complex cycles with 2
motors - Assembly of microswitches and
microvalves - Etc
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Competition Cam timers
COMPETITORS
1 SAIA
2 FIBER
3 CDC
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The main markets
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Timer Products
The CROUZET offer END
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