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Power Supplies
A DC power supply can be connected if its ripple factor is 20% or
less and the mean voltage is within the rated operating voltage range
of the Timer.
An AC power supply can be connected to the power input terminals
without regard to polarity. A DC power supply must be connected to
the power input terminals as designated according to the polarity of
the terminals.
Make sure that the voltage is applied within the specified range,
otherwise the internal elements of the Timer may be damaged.
Connect the power supply voltage through a relay or switch in such a
way that the voltage reaches a fixed value at once, otherwise the
Timer may not be reset or a timer error may result.
Be aware that the operating voltage will rise by 5% if the rated
voltage is applied to the Timer continuously while the ambient
temperature is close to the maximum permissible ambient
temperature.
The power supply circuit of any H3CR-A model (except for H3CR-
A@S), H3CR-F 100-to-240-VAC model, and H3CR-G model is a
switching circuit. If the power line connected to the power supply
circuit has a transformer with high inductance, a counter-
electromotive voltage will be induced by the inductance. To suppress
the voltage, apply a CR filter to the power supply line.
Apply the power voltage at once through the switch and relay
contacts. If not applied at once, power reset may not take place or
time-up may occur.
When the power is turned on, a rush current (refer to your OMRON
website) may flow briefly and the timer may not start if there is
insufficient power capacity. Use a power supply with sufficient
capacity.
Mounting Direction
There are no restrictions to the mounting direction.
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Эл. почта: orm@nt-rt.ru || Сайт: http://omron.nt-rt.ru
Others
If the Timer is mounted to a control board, dismount the Timer from
the control board or short-circuit the control board circuitry before
carrying out a voltage withstand test between the electric circuitry
and non-charged metal part of the Timer. This protects the internal
circuitry of the Timer from damage.
If the timer is left for an extended time at high temperature in the
time-up state (internal relay ON), the internal components
(electrolytic capacitors, etc.) may deteriorate faster than normal. For
this reason, use in combination with a relay, and avoid leaving in the
time-up state for an extended time (for example, one month or
longer).
Reference example
Use as shown below.
X
/b
T/a
X
2
T
X
1
Cleaning
Do not use solvents such as thinner. Use commercially available
alcohol.
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Саратов (845)249-38-78
Севастополь (8692)22-31-93
Симферополь (3652)67-13-56
Таджикистан (992)427-82-92-69
H3CR
/a
X
/a
1
1
:
Auxiliary relay,
X
X
2
MY relay, etc.
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Сочи (862)225-72-31
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Уфа (347)229-48-12
Хабаровск (4212)92-98-04
Челябинск (351)202-03-61
Череповец (8202)49-02-64
Ярославль (4852)69-52-93
57
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