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Check out our Relays
These
modules also use the great little OMRON G5LE-14 power relay which can switch a large load for its compact
size. Module includes: back EMP protection diode;
easy to use wire connection terminals; Normally Open, and Normally Closed contacts;
and AC and DC switching via the relay.
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EXAMPLE
APPLICATIONS
Our units' modular
design means they can be used in a very wide
range of applications including:
Available in 12v
DC or 24v DC models, the modules use the OMRON G5LE-14 power relay
which can switch:
- large AC or DC loads,
or
- DC logic circuitry**
**Note:
Ensure you electronically separate digital
circuitry from load carrying circuitry.
The OMRON G5LE-14 power relay's
SPDT switch means it can be used as a
"standard" switch (eg Common to
Normally Open) and/or as an inverter (Common to
Normally Closed).
These
examples are provided 'as-is', without any expressed or
implied
warranty. In no event will the authors, ULTRAsmart,
Jarvis (Australia) Pty Ltd or its employees or directors be held liable for any damages arising from the use of
these examples.
Naturally, example
applications are only intended as a general approach
to using our modules, or to solving a control
problem or other problem. They are not
intended as technical advice. Your
specific application may be different. It is the users responsibility
to use our modules safely, correctly, and
appropriately.
ULTRAsmart retains
copyright to these examples.
ENHANCE
EXISTING CIRCUITRY
Relays
- Standard/Basic
Relay Modules: Digital Signal Requirements Basic
Relay or RelayPair
modules.
General Example: Based around the 12 volt
"standard" Relay Modules - Basic12
(RY12DC8/02), and RelayPair12 (RP12DC8/03). Determines the digital
signal requirements for these modules using the OMRON relay G5LE-14
12VDC spec sheet (the relay used in both of these modules). Starts discussion
on wiring up outputs that could use such relays (eg open collector on a
security panel).
- R/S
Latch made with SPDT Relay Modules:
Uses RelayPair modules (but Basic
Relay modules could be used).
Circuit Diagram and Wiring Diagram: How to build an R/S latch
from 2 x RelayPair12 modules (you would need 4 x BasicRelay modules).
RelayPair modules used because it is less fiddley using 2 modules than 4
of the Basic Relay modules. And the Relay On LED indicator on the
RelayPair units is handy to show whether the latch is On or Off.
- DualTimer
as a Specialised Triggerable Relay:
Uses 1 x DualTimer.
Manual / How To: The DualTimer is designed to handle dirty
electronic environments - that may trouble some triggerable relays; and
can trigger on a broken circuit - which some triggerable relays may not
be able to do.
Discusses set up in delay mode with minimum time setting (0.25 sec). A
typical triggerable relay will not have this delay on application of the
trigger, but for many uses such a short delay may not be
noticeable or even a problem. DualTimer12s used in the examples,
but DualTimer24s could be used in a 24v DC system.
DualTimer
- Door Open Too Long
or
DOTL
alarm using 1 x DualTimer.
Manual / How To. DualTimer (+ve or -ve trigger as required) takes output
from panel (or other existing circuitry). DualTimer12 used in example,
but DualTimer24 could be used in a 24v DC system. Setup instructions.
- Door
Strike or EM Lock Hold Open using 1
or 2 DualTimers.
Security. DualTimer (+ve or -ve trigger, or loss of +ve or -ve
trigger as required) takes output
from momentary push button switch or control panel (or other existing circuitry).
DualTimers used to extend functionality of a simple circuit by providing
hold open or extend hold open, and also to delay open
prior to hold open. Includes Fail Safe and Fail Secure
examples. DualTimer12s used in examples,
but DualTimer24s could be used in a 24v DC system. Setup instructions.
- Delay
Turn-On after Power Up Two
circuits, both use 1 DualTimer. One circuit
also uses a RelayPair module.
Manual. The DualTimer can be used to delay Turn-On of a Load (eg a
fan) which receives its power from a supply that is linked to the
DualTimer's power supply (eg both powered from the same Mains
connection). The DualTimer's POS and TRG terminals are both connected to
its power supply's +ve terminal. First circuit demonstrates an
interesting use of a relay to latch itself and to isolate the Daultimer
once it has performed its function. Two circuits with descriptions.
-
Watchdog
Timer using 1, 2 or 3 DualTimers.
Manual. Three different circuits demonstrating simple watchdog
monitoring through to a DualTimer being used to reboot the monitored
system after its failure to provide a series of positive pulses or a
continuous positive. Timer setup can be modified to monitor for a series
of negative pulses or a continuous negative. Also demonstrates an
interesting way of wiring up two DualTimers to minimise power
consumption when the timers are required to perform their function one
after the other rather then continuously. DualTimer12s used in the examples,
but DualTimer24s could be used in a 24v DC system. Circuit diagrams,
circuit descriptions, and setup information.
-
Simplified
"H Bridge" using
2 DualTimers.
Manual. If the flexibility of a full "H Bridge" is not
required, then it is possible to create a "simplified H
Bridge" using 2 Single Pole Double Throw (SPDT) relays. Since each
DualTimer controls a SPDT relay, this means it is possible to control
the direction and time a standard brushed DC motor operates using 2
units.
The simplified H Bridge is explained, then two different setups using
DualTimers are discussed. The first with no interlocks and the second
using 2 relays to interlock out simultaneous activation of both
DualTimers' relays. DualTimer12s used in the examples,
but DualTimer24s could be used in a 24v DC system. Circuit diagrams,
circuit descriptions, and setup information.
IN
COMBINATION / SIMPLE PLC
- Continuous
Timed OFF / Timed ON 12v DC circuit. Uses
2 x DualTimers, 1 x Basic
Relay
Controller: Turn on. Commences sequence at OFF time, then to ON
time, then to OFF time, then ON time etc .... repeating continuously.
The sequence may be interrupted by pressing a momentary switch which
starts the sequence again at the ON time point. Circuit diagram.
- Simplified
"Traffic Lights" v1
12v DC circuit. Uses 3 x DualTimers, 1 x
half of a RelayPair (1 x Basic
Relay would work fine, but the LED On indicator built into the RelayPair
is helpful), 3 x Basic Relays.
Lighting Controller: On power up, Red light On. Red light on as
default. Momentary trigger which only triggers if Red light On. Sequence
if triggered: Green light on for set time, then Yellow light on for set
time, then back to Red. Red light stays on until triggered again to
re-start the sequence. Circuit diagram.
- LED
Light Show: Waves v1
12v DC circuit. Uses 8 x DualTimers, 6 x
Basic12 Relays.
Lighting Controller: Create rolling two wave affect using 6 banks of
LED lights arranged in order 1-6. Sequence triggered by momentary
switch. Circuit diagram.
CATALOGUE
Our
catalogue
is available as a PDF document.
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