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Single
timing cycle which begins on energisation.
The
output changes state after timing.
2
relays timed or
1 relay timed and 1 instantaneous
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| Function
Ab : One-shot cycle |
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The
output changes states at the end of the set
time T1, for a period T2.
Both T1 and t2 independently adjustable |
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| Function
Ac : Timing after closing and opening of control
contact |
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After
energisation, closure of the control contact
causes the timing period T to commence and
output relay R (or the load) changes state
at the end of this interval. When contact
C (Y1) opens, relay R resets after a second
timing period T.
2
relays timed or
1 relay timed and 1 instantaneous
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| Function
Ad : Delay on energisation by switch (not
resettable) |
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| After
power-up, pressing or holding down the switch
starts timing. At the end of timing, the output
is energised. The output will be reset the
next time the switch is pressed or held down. |
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| Function
Ah : Flashing single cycle by switch not resettable) |
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| After
power-up, pressing or holding down the switch
starts timing. At the end of timing, the output
is energised. At the end of this second timing,
the output falls back to its initial value |
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| Function
At : Timing on energisation with memory |
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Provides
a cumulative time for contact opening.
The
output changes states at the end of the
set time.
2
relays timed or
1 relay timed and 1 instantaneous
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| Function
B : Timing on impulse one shot on pulse (with
constant supply) |
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After
energisation; a pulse (> 50 ms)
or a maintained control contact will cause
the output to change state which reverts
to the rest position at the end of timing.
N.B.:
this process enables shortening or lengthening
of a signal.
2
relays timed or
1 relay timed and 1 instantaneous
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| Function
Bw : Pulse output (adjustable) |
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AOutput
relay R (or the load) changes state, and
remains in the changed-over state for the
timing period, both when control contact
C (Y1) closes and when it opens.
2
relays timed or
1 relay timed and 1 instantaneous
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| Function
C: Timing after impulse Delay OFF (with constant
Supply) |
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After
energisation, once the control contact is
closed the output state changes. Timing
will only begin on the re-opening of this
control contact (one shot).
Relay
R returns to its initial position a the
end of the timing period.
2
relays timed or
1 relay timed and 1 instantaneous
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| Function
D or Di : Flip-flop |
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Repetitive
cycle which switches the output alternately
between the rest and operating position
for equal time bases.
T1+T2 = T total
Function
D: the cycle begins with the output
in rest position. Pause start.
2
relays timed or
1 relay timed and 1 instantaneous
Function
Di: the cycle begins with the output
in the operating position. Pulse start.
2
relays timed or
1 relay timed and 1 instantaneous
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| Function
H : Timing on energisation Interval timer
- one shot |
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On
energisation, the output changes state,
remains in that state for the duration of
timing and resets at the end of the single
cycle.
N.B.
This is complementary to function A.
2
relays timed or
1 relay timed and 1 instantaneous
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| Function
Ht : Delay on energisation with memory |
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Provides
a cumulative time for contact opening. On
energisation the output changes state, remains
in that state for the duration of timing
and resets at the end of the single cycle.
2
relays timed or
1 relay timed and 1 instantaneous
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| Function
K: Delay on de-energisation - True delay off |
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On
energisation, the output changes state.
On de-energisation timing commences and
the output only returns to the reset condition
after timing.
2
relays timed or
1 relay timed and 1 instantaneous
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| Function
L: Cyclic timing - Asymmetrical recycler |
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Repetitive
cycle comprising 2 independent adjustable
time bases. Each time base corresponds alternately
to a different output state.
N.B.:
The cycle starts with the output in the
rest position.
2
relays timed or
1 relay timed and 1 instantaneous
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| Function
Li : Cycle timing - Asymmetrical recycler |
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Repetitive
cycle comprising 2 independent adjustable
time bases. Each time base corresponds alternately
to a different output state.
N.B.:
The cycle starts with the output in the
operating position.
2
relays timed or
1 relay timed and 1 instantaneous
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| Function
N : "Safe-guard" |
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At
the first control pulse the output is energised.
To
complete the timing the interval between
the two control pulses must be greater than
the timing set.
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O : "Delayed safe-guard". |
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On
energisation, a first timing sequence occurs
and the output changes state. With the closing
of the control contact, the output resets
and the timing starts, with the output being
activated after timing.
For
the timing to be completed, the interval
between the closing of two control contacts
must be greater than the timing set.
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| Function
P: Delayed fixed-length pulse |
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| Timing
begins on energisation. At the end of the
timing period output relay r (or the load)
changes state for a period of approx. 500
milliseconds. |
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| Function
Pt: Impulse counter (delay on) |
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| Calculates
the total opening time of a contact. At the
end of timing, the output is energised for
approximately 500 ms. |
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Q : Star-delta" |
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| At
the end of timing, the output is not energised.
It remains "open" (not conducting)
and will only change state after the fixed
time of Ti has elapsed. Dwell time selectable. |
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| Function
T: Timing on energisation with memory |
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a
- energisation by control signal
The timer sums the times for which the control
contact is closed (C1).
Reset is by the reset signal (C2) only.
b
- energisation by supply voltage
The timer sums the times for which the supply
voltage (U) is on.
Reset is by the reset signal (C2) only.
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| Function
T: Impulse relay |
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| After
power-up , pressing or holding down the switch
closes the relay. Pressing the switch a second
time opens the relay. |
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| Function
Tt: Timed Impulse relay |
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| After
power-up, pressing or holding down the switch
closes the relay and start timing. The relay
opens at the end of timing or when the switch
is pressed a second time. |
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| Function
W: Timing after pulse on control contact |
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| After
energisation , if the control contact opens
it causes output relay R ( or the load) to
change state and timing to start. At the end
of the timing period, relay R resets to its
original state. |
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: Indefinite
